Other Parts Discussed in Thread: UCC28C40-Q1, UCC28C40
Webench created a schematic with a transformer. We would like to simulate the design with TINA spice 12, but need help setting up the transformer for the simulation.
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Webench created a schematic with a transformer. We would like to simulate the design with TINA spice 12, but need help setting up the transformer for the simulation.
David,
Thanks for your interest in TI here. What sort of simulation are you trying to run and what are you hoping to learn from it? Are you trying to verify the selection of transformer parameters for the design?
Please share your webench design information as well so we better understand your specifications.
Regards,
John
I just got back in to see if there were any comments added and noticed that schematic I cut and pasted is not showing up. I'm trying again by converting the Webench output to a Word document.
Design : 14 UCC2813DTR-0
UCC2813DTR-0 10V-264V to 12.00V @ 1A
VinMin = 10.0V VinMax = 264.0V Vout = 12.0V Iout = 1.0A
Device = UCC2813DTR-0
Topology = Flyback
Created = 2021-01-13 14:52:35.171 BOM Cost = NA
BOM Count = 45 Total Pd =
Dsec2
VF@Io= 500.0 m V
VRRM= 666.977 V
T1
Dsec
VF@Io= 500.0 m V
VRRM= 666.977 V
Vin
Cin
2.2 µF
14.0 m Ohm
Rstartup1
4.7 kOhm
250.0 m W
Rsnub2
1.2 kOhm
2.0 W
Rsnub1
1.2 kOhm
2.0 W
Csnub
180.0 nF
1.0 m Ohm
Dsnub
VF@Io= 1.0 V
VRRM= 400.0 V
Cout 1
180.0 µF
16.0 m Ohm
Iout
Cref
100.0 nF
1.0 m Ohm
UCC2813 - 0 D
Rstartup2
4.7 kOhm
250.0 m W
C12
100.0 nF
64.0 m Ohm
Cvcc
33.0 µF
700.0 m Ohm
Raux
10.0 Ohm
63.0 m W
Daux
VF@Io= 500.0 m V
VRRM= 503.488 V
Rz
1.1 kOhm
63.0 m W
Q1
Rfbt
Ct
1.0 nF
25.0 m Ohm
Qsc
C13
1.0 nF
REF
RC
FB U1 COMP CS
VCC
OUT
GND
Rdrv
12.1 Ohm
63.0 m W
M1
VdsMax= 356.0 V IdsMax= 6.0 Amps
13.7 kOhm
63.0 m W
Dz
Rt
15.4 kOhm
50.0 m W
Rsc
3.24 kOhm
63.0 m W
R11
10.0 kOhm
50.0 m W
Ccs
470.0 pF
Rcs
1000.0 Ohm
63.0 m W
Rsns
167.617 m Ohm
0.0 W
Rled
1.21 kOhm
63.0 m W
Rbias
4.87 kOhm
63.0 m W
R21
10.0 kOhm
50.0 m W
D21
VF@Io= 550.0 m V
VRRM= 30.0 V
C21
22.0 µF
2.05 m Ohm
C22
22.0 pF
R13
4.99 kOhm
63.0 m W
O1 R22
2.49 MOhm
63.0 m W
C23
1.23429 pF
R12
1.43 kOhm
63.0 m W
VR
Rfbb
3.6 kOhm
100.0 m W
Design Alerts
Click on the transformer symbol in the schematic and select "Explore Transformer Core/Bobbin Selection" to design using specific transformer cores and bobbin. With the current design condition, suitable FET could not be found in the current database. Hence, this design is created using an ideal FET. Please note that the resulting FET parameters are ideal, so the efficiency/loss values have been disabled. Also, the schematic/PCB export and Thermal simulations will not work with the ideal FET.
Electrical BOM
Name |
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Manufacturer |
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Part Number |
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Properties |
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Qty |
Price |
Footprint |
C12 |
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Kemet |
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Cap= 100.0 nF |
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1 |
$0.01 |
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Series= X7R |
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ESR= 64.0 mOhm VDC= 50.0 V |
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0805 7 mm2 |
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IRMS= 1.64 A |
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C13 |
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MuRata |
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Cap= 1.0 nF |
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1 |
$0.01 |
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Series= C0G/NP0 |
|
VDC= 50.0 V IRMS= 0.0 A |
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0402 3 mm2 |
C21 |
|
TDK |
|
C2012X5R1V226M125AC |
|
Cap= 22.0 uF |
|
1 |
$0.33 |
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Series= X5R |
|
ESR= 2.05 mOhm VDC= 35.0 V |
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0805 7 mm2 |
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IRMS= 4.5559 A |
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C22 |
|
Samsung Electro- |
|
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Cap= 22.0 pF |
|
1 |
$0.01 |
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Mechanics |
|
Series= C0G/NP0 |
|
VDC= 50.0 V IRMS= 0.0 A |
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0805 7 mm2 |
C23 |
|
CUSTOM |
|
CUSTOM |
|
Cap= 1.23429 pF |
|
1 |
NA |
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Series= ? |
|
VDC= 0.0 V IRMS= 0.0 A |
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CUSTOM 0 mm2 |
Ccs |
|
AVX |
|
|
Cap= 470.0 pF |
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1 |
$0.01 |
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Series= C0G/NP0 |
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VDC= 50.0 V IRMS= 0.0 A |
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0402 3 mm2 |
Name Manufacturer Part Number Properties Qty Price Footprint
CAPRR2750W80L3150T1250H2150
486 mm2
Cout1 Panasonic 25SVPF180M Series= SVPF
Cref MuRata GRM155R71C104KA88D
Series= X7R
Csnub MuRata GRM188R71E184KA88D
Series= X7R
Ct Kemet C0805C102J1GACTU
Series= C0G/NP0
Cvcc Panasonic EEE-FK1E330UR Series= FK
Cap= 180.0 uF
ESR= 16.0 mOhm
VDC= 25.0 V
IRMS= 4.65 A
Cap= 100.0 nF
ESR= 1.0 mOhm
VDC= 16.0 V
IRMS= 0.0 A
Cap= 180.0 nF
ESR= 1.0 mOhm
VDC= 25.0 V
IRMS= 0.0 A
Cap= 1.0 nF
ESR= 25.0 mOhm
VDC= 100.0 V
IRMS= 1.71 A
Cap= 33.0 uF
ESR= 700.0 mOhm
VDC= 25.0 V
IRMS= 160.0 mA
1 $0.63
1 $0.01
1 $0.03
1 $0.09
1 $0.09
CAPSMT_62_E12 106 mm2
0402 3 mm2
0603 5 mm2
0805 7 mm2
SM_RADIAL_C 62 mm2
D21 Panasonic DB2S31600L VF@Io= 550.0 mV VRRM= 30.0 V
Daux CUSTOM CUSTOM VF@Io= 500.0 mV VRRM= 503.488 V
Dsec CUSTOM CUSTOM VF@Io= 500.0 mV VRRM= 666.977 V
Dsec2 CUSTOM CUSTOM VF@Io= 500.0 mV VRRM= 666.977 V
Dsnub SMC Diode Solutions UF4004TA VF@Io= 1.0 V VRRM= 400.0 V
1 $0.03
1 NA
1 NA
1 NA
1 $0.22
SOD-523 5 mm2
CUSTOM 0 mm2
CUSTOM 0 mm2
CUSTOM 0 mm2
DO-41 43 mm2
Dz ON Semiconductor MMBZ5239BLT1G Zener 1 $0.02
M1 NA IdealFET VdsMax= 356.0 V IdsMax= 6.0 Amps
1 NA
SOT-23 14 mm2
NA 0 mm2
O1 Fairchild Semiconductor FOD817A Optocoupler 1 $0.11
R11 Yageo RC0201FR-0710KL
Series= ?
R12 Vishay-Dale CRCW04021K43FKED
Series= CRCW..e3
R13 Vishay-Dale CRCW04024K99FKED
Series= CRCW..e3
Res= 10.0 kOhm
Power= 50.0 mW
Tolerance= 1.0%
Res= 1.43 kOhm
Power= 63.0 mW
Tolerance= 1.0%
Res= 4.99 kOhm
Power= 63.0 mW
Tolerance= 1.0%
1 $0.01
1 $0.01
1 $0.01
TO-18 57 mm2
0201 2 mm2
0402 3 mm2
0402 3 mm2
Name Manufacturer Part Number Properties Qty Price Footprint
R21 Yageo RC0201FR-0710KL
Series= ?
R22 Vishay-Dale CRCW04022M49FKED
Series= CRCW..e3
Raux Vishay-Dale CRCW040210R0FKED Series= CRCW..e3
Rbias Vishay-Dale CRCW04024K87FKED Series= CRCW..e3
Rcs Vishay-Dale CRCW04021K00FKED Series= CRCW..e3
Rdrv Vishay-Dale CRCW040212R1FKED Series= CRCW..e3
Rfbb Yageo RC0603FR-073K6L
Series= ?
Rfbt Vishay-Dale CRCW040213K7FKED Series= CRCW..e3
Rled Vishay-Dale CRCW04021K21FKED Series= CRCW..e3
Rsc Vishay-Dale CRCW04023K24FKED Series= CRCW..e3
Rsns CUSTOM CUSTOM
Series= ?
Rsnub1 Vishay-Bccomponents PR02000201201JR500
Series= ?
Rsnub2 Vishay-Bccomponents PR02000201201JR500
Series= ?
Rstartup1 Yageo RC1206FR-074K7L Series= ?
Rstartup2 Yageo RC1206FR-074K7L Series= ?
Rt Yageo RC0201FR-0715K4L
Series= ?
Rz Vishay-Dale CRCW04021K10FKED Series= CRCW..e3
Res= 10.0 kOhm
Power= 50.0 mW
Tolerance= 1.0%
Res= 2.49 MOhm
Power= 63.0 mW
Tolerance= 1.0%
Res= 10.0 Ohm
Power= 63.0 mW
Tolerance= 1.0%
Res= 4.87 kOhm
Power= 63.0 mW
Tolerance= 1.0%
Res= 1000.0 Ohm
Power= 63.0 mW
Tolerance= 1.0%
Res= 12.1 Ohm
Power= 63.0 mW
Tolerance= 1.0%
Res= 3.6 kOhm
Power= 100.0 mW
Tolerance= 1.0%
Res= 13.7 kOhm
Power= 63.0 mW
Tolerance= 1.0%
Res= 1.21 kOhm
Power= 63.0 mW
Tolerance= 1.0%
Res= 3.24 kOhm
Power= 63.0 mW
Tolerance= 1.0%
Res= 167.617 mOhm
Power= 0.0 W
Tolerance= 0.0%
Res= 1.2 kOhm
Power= 2.0 W
Tolerance= 5.0%
Res= 1.2 kOhm
Power= 2.0 W
Tolerance= 5.0%
Res= 4.7 kOhm
Power= 250.0 mW
Tolerance= 1.0%
Res= 4.7 kOhm
Power= 250.0 mW
Tolerance= 1.0%
Res= 15.4 kOhm
Power= 50.0 mW
Tolerance= 1.0%
Res= 1.1 kOhm
Power= 63.0 mW
Tolerance= 1.0%
1 $0.01
1 $0.01
1 $0.01
1 $0.01
1 $0.01
1 $0.01
1 $0.01
1 $0.01
1 $0.01
1 $0.01
1 NA
1 $0.05
1 $0.05
1 $0.01
1 $0.01
1 $0.01
1 $0.01
0201 2 mm2
0402 3 mm2
0402 3 mm2
0402 3 mm2
0402 3 mm2
0402 3 mm2
0603 5 mm2
0402 3 mm2
0402 3 mm2
0402 3 mm2
CUSTOM 0 mm2
PR02 117 mm2
PR02 117 mm2
1206 11 mm2
1206 11 mm2
0201 2 mm2
0402 3 mm2
T1 Core=TDK ,
CoilFormer=TDK
Core=B65807J0000R041 ,
CoilFormer=B65808E1508T001
Lp= 18.0 µH
Turns Ratio(Nas)= 7:9
Turns Ratio(Nps)= 9:9
Npri= 9.0
Naux= 7.0
Nsec= 9.0
1 $1.38
TDK_B65803 341 mm2
Name |
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Manufacturer |
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Part Number |
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Properties |
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Qty |
Price |
|
Footprint |
U1 |
|
Texas Instruments |
|
|
Switcher |
|
1 |
$0.87 |
|
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R-PDSO-G3 16 mm2
0 .2275
Duty Cycle
60
0 .2250 55
0 .2225 50
0 .2200 45
0 .2175
40
0 .2150
35
0 .2125
30
0 .2100
0 .2075 25
0 .2050 20
0 .2025 15
0 .2000
0 .1975
0 .1950
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
10
5
0
|
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
10 .266666671
10 .266666670
10 .266666669
10 .266666668
10 .266666667
10 .266666666
10 .266666665
4 .00
3 .75
3 .50
3 .25
3 .00
2 .75
2 .50
2 .25
2 .00
10 .266666664
1 .75
10 .266666663
10 .266666662
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
1 .50
1 .25
1 .00
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
T1 Is1 RMS
0 .500
0 .475
0 .450
0 .425
0 .400
0 .375
0 .350
0 .325
0 .300
0 .275
0 .250
0 .225
0 .200
0 .175
0 .150
1 .8
1 .7
1 .6
1 .5
1 .4
1 .3
1 .2
1 .1
1 .0
0 .9
0 .8
0 .7
0 .6
0 .5
0 .4
0 .3
0 .2
1 .5
1 .4
1 .3
1 .2
1 .1
1 .0
0 .9
0 .8
0 .7
0 .6
0 .5
0 .4
0 .3
0 .2
0 .1
0 .0
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
3 .50
3 .25
3 .00
2 .75
2 .50
2 .25
2 .00
1 .75
1 .50
1 .25
1 .00
0 .75
0 .50
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
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0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .008323705
0 .008323704
0 .008323703
0 .008323702
|
3 .50
3 .25
3 .00
0 .008323701
2 .75
0 .008323700
2 .50
0 .008323699
0 .008323698
0 .008323697
0 .008323696
2 .25
2 .00
1 .75
1 .50
1 .25
0 .008323695
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .0625
0 .0600
0 .0575
0 .0550
0 .0525
0 .0500
0 .0475
0 .0450
0 .0425
0 .0400
0 .0375
0 .0350
0 .0325
0 .0300
0 .0275
0 .0250
0 .0225
0 .0200
0 .0175
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
1 .5
1 .4
1 .3
1 .2
1 .1
1 .0
0 .9
0 .8
0 .7
0 .6
0 .5
0 .4
0 .3
0 .2
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .60
0 .55
0 .50
0 .45
0 .40
0 .35
0 .30
0 .25
0 .20
0 .15
0 .10
0 .05
0 .00
2 .00
1 .75
1 .50
1 .25
1 .00
0 .75
0 .50
0 .25
0 .00
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
200
195
190
185
180
175
170
165
160
155
150
145
140
135
130
125
120
115
5 .50
5 .25
5 .00
4 .75
4 .50
4 .25
4 .00
3 .75
3 .50
3 .25
3 .00
2 .75
2 .50
2 .25
2 .00
1 .75
1 .50
1 .25
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
8 ,500
8 ,000
7 ,500
7 ,000
6 ,500
6 ,000
5 ,500
5 ,000
4 ,500
4 ,000
3 ,500
3 ,000
2 ,500
2 ,000
1 ,500
1 ,000
500
0
0 .0425
0 .0400
0 .0375
0 .0350
0 .0325
0 .0300
0 .0275
0 .0250
0 .0225
0 .0200
0 .0175
0 .0150
0 .0125
0 .0100
0 .0075
0 .0050
0 .0025
0 .0000
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
6 .0
5 .5
5 .0
4 .5
4 .0
3 .5
3 .0
2 .5
2 .0
1 .5
1 .0
0 .5
0 .0
0 .250
0 .225
0 .200
0 .175
0 .150
0 .125
0 .100
0 .075
0 .050
0 .025
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .500000004
0 .500000003
0 .500000002
0 .500000001
0 .500000000
0 .499999999
0 .499999998
0 .499999997
0 .499999996
0 .499999995
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
|
0 .70
0 .65
0 .60
0 .55
0 .50
0 .45
0 .40
0 .35
0 .30
0 .25
0 .20
0 .15
0 .10
0 .05
0 .00
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
7 .0
6 .5
6 .0
5 .5
5 .0
4 .5
4 .0
3 .5
3 .0
2 .5
2 .0
1 .5
1 .0
0 .5
Pout
|
11
10
9
8
7
6
5
4
3
2
1
0 .0
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .250
0 .225
0 .200
0 .175
0 .150
|
0 .500000003
0 .500000002
0 .500000001
0 .125
0 .500000000
0 .100
0 .075
0 .050
0 .499999999
0 .499999998
0 .499999997
0 .025
0 .499999996
1 .4
1 .3
1 .2
1 .1
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .499999995
9 .722222227
9 .722222226
9 .722222225
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
1 .0
0 .9
0 .8
0 .7
0 .6
0 .5
0 .4
0 .3
0 .2
0 .1
|
9 .722222223
9 .722222222
9 .722222221
9 .722222220
9 .722222219
9 .722222218
0 .0
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
21 .600000005
T1 Copper Loss
21 .600000004
|
21 .600000003
0 .175
21 .600000002
0 .150
21 .600000001
21 .600000000
21 .599999999
21 .599999998
0 .125
0 .100
0 .075
21 .599999997
0 .050
21 .599999996
0 .025
21 .599999995
0 .01425
0 .01400
0 .01375
0 .01350
0 .01325
0 .01300
0 .01275
0 .01250
0 .01225
0 .01200
0 .01175
0 .01150
0 .01125
0 .01100
0 .01075
0 .01050
0 .01025
0 .01000
0 .00975
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .000
0 .0375
0 .0350
0 .0325
0 .0300
0 .0275
0 .0250
0 .0225
0 .0200
0 .0175
0 .0150
0 .0125
0 .0100
0 .0075
0 .0050
0 .0025
0 .0000
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
4 .25
4 .00
3 .75
3 .50
3 .25
3 .00
2 .75
2 .50
2 .25
2 .00
1 .75
1 .50
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
3 .75
3 .50
3 .25
3 .00
2 .75
2 .50
2 .25
2 .00
1 .75
1 .50
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
1 .25
1 .25
1 .00
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .85
0 .80
0 .75
0 .70
0 .65
0 .60
0 .55
0 .50
0 .45
0 .40
0 .35
0 .30
0 .25
0 .20
0 .15
0 .10
0 .05
0 .00
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
# |
Name |
Value |
Category |
Description |
1. |
Cin Pd |
41.143 mW |
Capacitor |
Input capacitor power dissipation |
2. |
Cout1 IRMS |
1.509 A |
Capacitor |
Output capacitor1 RMS ripple current |
3. |
Cout1 Pd |
36.415 mW |
Capacitor |
Output capacitor1 power dissipation |
4. |
Daux trr |
0.0 ns |
Diode |
Auxiliary Diode Reverse Recovery Time |
5. |
Dsec Pd |
250.0 mW |
Diode |
Secondary Diode Power Dissipation |
6. |
Dsec Vf |
500.0 mV |
Diode |
Effective Forward Voltage Drop at the Operating Current |
7. |
Dsec trr |
0.0 ns |
Diode |
Output Diode Reverse Recovery Time |
8. |
Dsec2 Pd |
250.0 mW |
Diode |
Secondary Diode Power Dissipation |
9. |
Dsec2 Vf |
500.0 mV |
Diode |
Effective Forward Voltage Drop at the Operating Current |
10. |
Dsnub trr |
50.0 ns |
Diode |
Snubber Diode Reverse Recovery Time |
11. |
ICThetaJA |
107.5 degC/W |
IC |
IC junction-to-ambient thermal resistance |
12. |
Iin Avg |
1.39 A |
IC |
Average input current |
13. |
Cin Pd |
41.143 mW |
Power |
Input capacitor power dissipation |
14. |
Cout1 Pd |
36.415 mW |
Power |
Output capacitor1 power dissipation |
15. |
Dsec Pd |
250.0 mW |
Power |
Secondary Diode Power Dissipation |
16. |
Dsec2 Pd |
250.0 mW |
Power |
Secondary Diode Power Dissipation |
17. |
Paux |
14.239 mW |
Power |
Power Dissipation in Raux and Daux |
18. |
Pd Rstartup |
5.254 µW |
Power |
Power Dissipation in Rstartup1 and Rstartup2 |
19. |
Rfb Pd |
8.324 mW |
Power |
Rfb Power Dissipation |
20. |
Rsns Pd |
742.27 mW |
Power |
Current Limit Sense Resistor Power Dissipation |
21. |
Snubber Pd |
226.354 mW |
Power |
Snubber Power Dissipation |
22. |
T1 Copper Loss |
182.09 mW |
Power |
Transformer Copper Loss Power Dissipation |
23. |
T1 Core Loss |
182.09 mW |
Power |
Transformer Core Loss Power Dissipation |
24. |
T1 Pd |
364.18 mW |
Power |
Estimated Losses in Transformer |
25. |
Pd Rstartup |
5.254 µW |
Resistor |
Power Dissipation in Rstartup1 and Rstartup2 |
26. |
Rfb Pd |
8.324 mW |
Resistor |
Rfb Power Dissipation |
27. |
Rsns Pd |
742.27 mW |
Resistor |
Current Limit Sense Resistor Power Dissipation |
28. |
BOM Count |
45 |
System |
Total Design BOM count |
|
|
|
Information |
|
29. |
Duty Cycle |
57.479 % |
System |
Duty cycle |
|
|
|
Information |
|
30. |
FootPrint |
1.738 k mm2 |
System Information |
Total Foot Print Area of BOM components |
31. |
Frequency |
97.403 kHz |
System |
Switching frequency |
|
|
|
Information |
|
32. |
Iout |
1.0 A |
System |
Iout operating point |
|
|
|
Information |
|
33. |
Iout_DCM |
708.622 mA |
System |
Approximate Current below which DCM mode of operation will begin |
|
|
|
Information |
|
34. |
Mode |
CCM |
System |
Conduction Mode |
|
|
|
Information |
|
35. |
Pout |
12.0 W |
System |
Total output power |
|
|
|
Information |
|
36. |
Tdead |
0.0 ns |
System |
Approximate Dead Time of the Regulator |
|
|
|
Information |
|
37. |
Toff |
3.909 us |
System |
Approximate Converter Off Time |
|
|
|
Information |
|
38. |
Ton Act |
5.901 us |
System |
Approximate Converter On Time |
|
|
|
Information |
|
39. |
Total BOM |
NA |
System |
Total BOM Cost |
|
|
|
Information |
|
# |
Name |
Value |
Category |
Description |
40. |
Tsw |
10.267 us |
System |
Switching Time Period |
|
|
|
Information |
|
41. |
Vin |
10.0 V |
System |
Vin operating point |
|
|
|
Information |
|
42. |
Vout |
12.0 V |
System |
Operational Output Voltage |
|
|
|
Information |
|
43. |
Vout Actual |
11.99 V |
System |
Vout Actual calculated based on selected voltage divider resistors |
|
|
|
Information |
|
44. |
Vout Tolerance |
1.926 % |
System |
Vout Tolerance based on IC Tolerance (no load) and voltage divider |
|
|
|
Information |
resistors if applicable |
45. |
Vout p-p |
49.817 mV |
System |
Peak-to-peak output ripple voltage |
|
|
|
Information |
|
46. |
Vout pp percentage |
415.138 m% |
System |
Output Voltage ripple percentage |
|
|
|
Information |
|
47. |
Vsnub |
21.6 V |
System |
Voltage Across the Snubber |
|
|
|
Information |
|
48. |
Ipri Avg |
1.509 A |
Transformer |
Average Current in Primary Winding over the complete Switching |
|
|
|
|
Period |
49. |
Ipri ripple |
3.114 A |
Transformer |
Ripple Current in the Primary Winding |
50. |
Ipri ripple pk-pk |
118.561 % |
Transformer |
Primary Current pk-pk ripple percentage(of Ipri avg during ton only) |
|
percentage |
|
|
|
51. |
Isec Ripple |
3.114 A |
Transformer |
Ripple Current in the Secondary Winding |
52. |
Paux |
14.239 mW |
Transformer |
Power Dissipation in Raux and Daux |
53. |
T1 Copper Loss |
182.09 mW |
Transformer |
Transformer Copper Loss Power Dissipation |
54. |
T1 Core Loss |
182.09 mW |
Transformer |
Transformer Core Loss Power Dissipation |
55. |
T1 Iprim RMS |
2.104 A |
Transformer |
Transformer Primary RMS Current |
56. |
T1 Iprim pk |
4.183 A |
Transformer |
Transformer Primary Peak Current |
57. |
T1 Is1 RMS |
1.81 A |
Transformer |
Transformer Secondary1 RMS Current |
58. |
T1 Is1 pk |
4.183 A |
Transformer |
Transformer Secondary1 Peak Current |
59. |
T1 Pd |
364.18 mW |
Transformer |
Estimated Losses in Transformer |
60. |
Vaux |
9.722 V |
Transformer |
Auxiliary Voltage |
Design Inputs Name |
Value |
Description |
Iout |
1.0 |
Maximum Output Current |
VinMax |
264.0 |
Maximum input voltage |
VinMin |
10.0 |
Minimum input voltage |
Vout |
12.0 |
Output Voltage |
base_pn |
UCC2813-0 |
Base Product Number |
source |
DC |
Input Source Type |
Ta |
30.0 |
Ambient temperature |
WEBENCH® Assembly
Component Testing
Some published data on components in datasheets such as Capacitor ESR and Inductor DC resistance is based on conservative values that will guarantee that the components always exceed the specification. For design purposes it is usually better to work with typical values. Since this data is not always available it is a good practice to measure the Capacitance and ESR values of Cin and Cout, and the inductance and DC resistance of L1 before assembly of the board. Any large discrepancies in values should be electrically simulated in WEBENCH to check for instabilities and thermally simulated in WebTHERM to make sure critical temperatures are not exceeded.
If board assembly is done in house it is best to tack down one terminal of a component on the board then solder the other terminal. For surface mount parts with large tabs, such as the DPAK, the tab on the back of the package should be pre-tinned with solder, then tacked into place
by one of the pins. To solder the tab town to the board place the iron down on the board while resting against the tab, heating both surfaces simultaneously. Apply light pressure to the top of the plastic case until the solder flows around the part and the part is flush with the PCB. If the solder is not flowing around the board you may need a higher wattage iron (generally 25W to 30W is enough).
It is best to initially power up the board by setting the input supply voltage to the lowest operating input voltage 10.0V and set the input supply's current limit to zero. With the input supply off connect up the input supply to Vin and GND. Connect a digital volt meter and a load if needed
to set the minimum Iout of the design from Vout and GND. Turn on the input supply and slowly turn up the current limit on the input supply. If the voltage starts to rise on the input supply continue increasing the input supply current limit while watching the output voltage. If the current increases on the input supply, but the voltage remains near zero, then there may be a short or a component misplaced on the board.
Power down the board and visually inspect for solder bridges and recheck the diode and capacitor polarities. Once the power supply circuit is operational then more extensive testing may include full load testing, transient load and line tests to compare with simulation results.
The setup is the same as the initial startup, except that an additional digital voltmeter is connected between Vin and GND, a load is connected between Vout and GND and a current meter is connected in series between Vout and the load. The load must be able to handle at least rated output power + 50% ( 7.5 watts for this design). Ideally the load is supplied in the form of a variable load test unit. It can also be done in the form of suitably large power resistors. When using an oscilloscope to measure waveforms on the prototype board, the ground leads of the oscilloscope probes should be as short as possible and the area of the loop formed by the ground lead should be kept to a minimum. This will help reduce ground lead inductance and eliminate EMI noise that is not actually present in the circuit.
# Name Value
Turns 9.0
AWG 29.0
Layers 2.0
Strands 4.0
Insulation Type Heavy Insulated Magnet Wire
Turns 7.0
AWG 28.0
Layers 1.0
Strands 2.0
Insulation Type Heavy Insulated Magnet Wire
Turns 9.0
AWG 27.0
Layers 2.0
Strands 2.0
Insulation Type Triple Insulated
Winding Instruction
Winding |
|
AWG |
|
Turns |
|
Winding Orientation |
Primary First 1/2.0 |
|
29.0 |
|
5 |
|
Clockwise |
Auxiliary |
|
28.0 |
|
7.0 |
|
Counter Clockwise |
Triple Insulated Secondary |
|
27.0 |
|
9.0 |
|
Counter Clockwise |
Primary Second 1/2.0 |
|
29.0 |
|
4 |
|
Clockwise |
Transformer Parameters
# Name Value
1. Master key : 2CD6EBCA95555025[v1]
Design : 14 UCC2813DTR-0
UCC2813DTR-0 10V-264V to 12.00V @ 1A
VinMin = 10.0V VinMax = 264.0V Vout = 12.0V Iout = 1.0A
Device = UCC2813DTR-0
Topology = Flyback
Created = 2021-01-13 14:52:35.171 BOM Cost = NA
BOM Count = 45 Total Pd =
Dsec2
VF@Io= 500.0 m V
VRRM= 666.977 V
T1
Dsec
VF@Io= 500.0 m V
VRRM= 666.977 V
Vin
Cin
2.2 µF
14.0 m Ohm
Rstartup1
4.7 kOhm
250.0 m W
Rsnub2
1.2 kOhm
2.0 W
Rsnub1
1.2 kOhm
2.0 W
Csnub
180.0 nF
1.0 m Ohm
Dsnub
VF@Io= 1.0 V
VRRM= 400.0 V
Cout 1
180.0 µF
16.0 m Ohm
Iout
Cref
100.0 nF
1.0 m Ohm
UCC2813 - 0 D
Rstartup2
4.7 kOhm
250.0 m W
C12
100.0 nF
64.0 m Ohm
Cvcc
33.0 µF
700.0 m Ohm
Raux
10.0 Ohm
63.0 m W
Daux
VF@Io= 500.0 m V
VRRM= 503.488 V
Rz
1.1 kOhm
63.0 m W
Q1
Rfbt
Ct
1.0 nF
25.0 m Ohm
Qsc
C13
1.0 nF
REF
RC
FB U1 COMP CS
VCC
OUT
GND
Rdrv
12.1 Ohm
63.0 m W
M1
VdsMax= 356.0 V IdsMax= 6.0 Amps
13.7 kOhm
63.0 m W
Dz
Rt
15.4 kOhm
50.0 m W
Rsc
3.24 kOhm
63.0 m W
R11
10.0 kOhm
50.0 m W
Ccs
470.0 pF
Rcs
1000.0 Ohm
63.0 m W
Rsns
167.617 m Ohm
0.0 W
Rled
1.21 kOhm
63.0 m W
Rbias
4.87 kOhm
63.0 m W
R21
10.0 kOhm
50.0 m W
D21
VF@Io= 550.0 m V
VRRM= 30.0 V
C21
22.0 µF
2.05 m Ohm
C22
22.0 pF
R13
4.99 kOhm
63.0 m W
O1 R22
2.49 MOhm
63.0 m W
C23
1.23429 pF
R12
1.43 kOhm
63.0 m W
VR
Rfbb
3.6 kOhm
100.0 m W
Design Alerts
Click on the transformer symbol in the schematic and select "Explore Transformer Core/Bobbin Selection" to design using specific transformer cores and bobbin. With the current design condition, suitable FET could not be found in the current database. Hence, this design is created using an ideal FET. Please note that the resulting FET parameters are ideal, so the efficiency/loss values have been disabled. Also, the schematic/PCB export and Thermal simulations will not work with the ideal FET.
Electrical BOM
Name |
|
Manufacturer |
|
Part Number |
|
Properties |
|
Qty |
Price |
Footprint |
C12 |
|
Kemet |
|
|
Cap= 100.0 nF |
|
1 |
$0.01 |
|
|
|
|
|
|
Series= X7R |
|
ESR= 64.0 mOhm VDC= 50.0 V |
|
|
|
0805 7 mm2 |
|
|
|
|
|
|
IRMS= 1.64 A |
|
|
|
|
C13 |
|
MuRata |
|
|
Cap= 1.0 nF |
|
1 |
$0.01 |
|
|
|
|
|
|
Series= C0G/NP0 |
|
VDC= 50.0 V IRMS= 0.0 A |
|
|
|
0402 3 mm2 |
C21 |
|
TDK |
|
C2012X5R1V226M125AC |
|
Cap= 22.0 uF |
|
1 |
$0.33 |
|
|
|
|
|
Series= X5R |
|
ESR= 2.05 mOhm VDC= 35.0 V |
|
|
|
0805 7 mm2 |
|
|
|
|
|
|
IRMS= 4.5559 A |
|
|
|
|
C22 |
|
Samsung Electro- |
|
|
Cap= 22.0 pF |
|
1 |
$0.01 |
|
|
|
|
Mechanics |
|
Series= C0G/NP0 |
|
VDC= 50.0 V IRMS= 0.0 A |
|
|
|
0805 7 mm2 |
C23 |
|
CUSTOM |
|
CUSTOM |
|
Cap= 1.23429 pF |
|
1 |
NA |
|
|
|
|
|
Series= ? |
|
VDC= 0.0 V IRMS= 0.0 A |
|
|
|
CUSTOM 0 mm2 |
Ccs |
|
AVX |
|
|
Cap= 470.0 pF |
|
1 |
$0.01 |
|
|
|
|
|
|
Series= C0G/NP0 |
|
VDC= 50.0 V IRMS= 0.0 A |
|
|
|
0402 3 mm2 |
Name Manufacturer Part Number Properties Qty Price Footprint
CAPRR2750W80L3150T1250H2150
486 mm2
Cout1 Panasonic 25SVPF180M Series= SVPF
Cref MuRata GRM155R71C104KA88D
Series= X7R
Csnub MuRata GRM188R71E184KA88D
Series= X7R
Ct Kemet C0805C102J1GACTU
Series= C0G/NP0
Cvcc Panasonic EEE-FK1E330UR Series= FK
Cap= 180.0 uF
ESR= 16.0 mOhm
VDC= 25.0 V
IRMS= 4.65 A
Cap= 100.0 nF
ESR= 1.0 mOhm
VDC= 16.0 V
IRMS= 0.0 A
Cap= 180.0 nF
ESR= 1.0 mOhm
VDC= 25.0 V
IRMS= 0.0 A
Cap= 1.0 nF
ESR= 25.0 mOhm
VDC= 100.0 V
IRMS= 1.71 A
Cap= 33.0 uF
ESR= 700.0 mOhm
VDC= 25.0 V
IRMS= 160.0 mA
1 $0.63
1 $0.01
1 $0.03
1 $0.09
1 $0.09
CAPSMT_62_E12 106 mm2
0402 3 mm2
0603 5 mm2
0805 7 mm2
SM_RADIAL_C 62 mm2
D21 Panasonic DB2S31600L VF@Io= 550.0 mV VRRM= 30.0 V
Daux CUSTOM CUSTOM VF@Io= 500.0 mV VRRM= 503.488 V
Dsec CUSTOM CUSTOM VF@Io= 500.0 mV VRRM= 666.977 V
Dsec2 CUSTOM CUSTOM VF@Io= 500.0 mV VRRM= 666.977 V
Dsnub SMC Diode Solutions UF4004TA VF@Io= 1.0 V VRRM= 400.0 V
1 $0.03
1 NA
1 NA
1 NA
1 $0.22
SOD-523 5 mm2
CUSTOM 0 mm2
CUSTOM 0 mm2
CUSTOM 0 mm2
DO-41 43 mm2
Dz ON Semiconductor MMBZ5239BLT1G Zener 1 $0.02
M1 NA IdealFET VdsMax= 356.0 V IdsMax= 6.0 Amps
1 NA
SOT-23 14 mm2
NA 0 mm2
O1 Fairchild Semiconductor FOD817A Optocoupler 1 $0.11
R11 Yageo RC0201FR-0710KL
Series= ?
R12 Vishay-Dale CRCW04021K43FKED
Series= CRCW..e3
R13 Vishay-Dale CRCW04024K99FKED
Series= CRCW..e3
Res= 10.0 kOhm
Power= 50.0 mW
Tolerance= 1.0%
Res= 1.43 kOhm
Power= 63.0 mW
Tolerance= 1.0%
Res= 4.99 kOhm
Power= 63.0 mW
Tolerance= 1.0%
1 $0.01
1 $0.01
1 $0.01
TO-18 57 mm2
0201 2 mm2
0402 3 mm2
0402 3 mm2
Name Manufacturer Part Number Properties Qty Price Footprint
R21 Yageo RC0201FR-0710KL
Series= ?
R22 Vishay-Dale CRCW04022M49FKED
Series= CRCW..e3
Raux Vishay-Dale CRCW040210R0FKED Series= CRCW..e3
Rbias Vishay-Dale CRCW04024K87FKED Series= CRCW..e3
Rcs Vishay-Dale CRCW04021K00FKED Series= CRCW..e3
Rdrv Vishay-Dale CRCW040212R1FKED Series= CRCW..e3
Rfbb Yageo RC0603FR-073K6L
Series= ?
Rfbt Vishay-Dale CRCW040213K7FKED Series= CRCW..e3
Rled Vishay-Dale CRCW04021K21FKED Series= CRCW..e3
Rsc Vishay-Dale CRCW04023K24FKED Series= CRCW..e3
Rsns CUSTOM CUSTOM
Series= ?
Rsnub1 Vishay-Bccomponents PR02000201201JR500
Series= ?
Rsnub2 Vishay-Bccomponents PR02000201201JR500
Series= ?
Rstartup1 Yageo RC1206FR-074K7L Series= ?
Rstartup2 Yageo RC1206FR-074K7L Series= ?
Rt Yageo RC0201FR-0715K4L
Series= ?
Rz Vishay-Dale CRCW04021K10FKED Series= CRCW..e3
Res= 10.0 kOhm
Power= 50.0 mW
Tolerance= 1.0%
Res= 2.49 MOhm
Power= 63.0 mW
Tolerance= 1.0%
Res= 10.0 Ohm
Power= 63.0 mW
Tolerance= 1.0%
Res= 4.87 kOhm
Power= 63.0 mW
Tolerance= 1.0%
Res= 1000.0 Ohm
Power= 63.0 mW
Tolerance= 1.0%
Res= 12.1 Ohm
Power= 63.0 mW
Tolerance= 1.0%
Res= 3.6 kOhm
Power= 100.0 mW
Tolerance= 1.0%
Res= 13.7 kOhm
Power= 63.0 mW
Tolerance= 1.0%
Res= 1.21 kOhm
Power= 63.0 mW
Tolerance= 1.0%
Res= 3.24 kOhm
Power= 63.0 mW
Tolerance= 1.0%
Res= 167.617 mOhm
Power= 0.0 W
Tolerance= 0.0%
Res= 1.2 kOhm
Power= 2.0 W
Tolerance= 5.0%
Res= 1.2 kOhm
Power= 2.0 W
Tolerance= 5.0%
Res= 4.7 kOhm
Power= 250.0 mW
Tolerance= 1.0%
Res= 4.7 kOhm
Power= 250.0 mW
Tolerance= 1.0%
Res= 15.4 kOhm
Power= 50.0 mW
Tolerance= 1.0%
Res= 1.1 kOhm
Power= 63.0 mW
Tolerance= 1.0%
1 $0.01
1 $0.01
1 $0.01
1 $0.01
1 $0.01
1 $0.01
1 $0.01
1 $0.01
1 $0.01
1 $0.01
1 NA
1 $0.05
1 $0.05
1 $0.01
1 $0.01
1 $0.01
1 $0.01
0201 2 mm2
0402 3 mm2
0402 3 mm2
0402 3 mm2
0402 3 mm2
0402 3 mm2
0603 5 mm2
0402 3 mm2
0402 3 mm2
0402 3 mm2
CUSTOM 0 mm2
PR02 117 mm2
PR02 117 mm2
1206 11 mm2
1206 11 mm2
0201 2 mm2
0402 3 mm2
T1 Core=TDK ,
CoilFormer=TDK
Core=B65807J0000R041 ,
CoilFormer=B65808E1508T001
Lp= 18.0 µH
Turns Ratio(Nas)= 7:9
Turns Ratio(Nps)= 9:9
Npri= 9.0
Naux= 7.0
Nsec= 9.0
1 $1.38
TDK_B65803 341 mm2
Name |
|
Manufacturer |
|
Part Number |
|
Properties |
|
Qty |
Price |
|
Footprint |
U1 |
|
Texas Instruments |
|
|
Switcher |
|
1 |
$0.87 |
|
|
R-PDSO-G3 16 mm2
0 .2275
Duty Cycle
60
0 .2250 55
0 .2225 50
0 .2200 45
0 .2175
40
0 .2150
35
0 .2125
30
0 .2100
0 .2075 25
0 .2050 20
0 .2025 15
0 .2000
0 .1975
0 .1950
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
10
5
0
|
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
10 .266666671
10 .266666670
10 .266666669
10 .266666668
10 .266666667
10 .266666666
10 .266666665
4 .00
3 .75
3 .50
3 .25
3 .00
2 .75
2 .50
2 .25
2 .00
10 .266666664
1 .75
10 .266666663
10 .266666662
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
1 .50
1 .25
1 .00
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
T1 Is1 RMS
0 .500
0 .475
0 .450
0 .425
0 .400
0 .375
0 .350
0 .325
0 .300
0 .275
0 .250
0 .225
0 .200
0 .175
0 .150
1 .8
1 .7
1 .6
1 .5
1 .4
1 .3
1 .2
1 .1
1 .0
0 .9
0 .8
0 .7
0 .6
0 .5
0 .4
0 .3
0 .2
1 .5
1 .4
1 .3
1 .2
1 .1
1 .0
0 .9
0 .8
0 .7
0 .6
0 .5
0 .4
0 .3
0 .2
0 .1
0 .0
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
3 .50
3 .25
3 .00
2 .75
2 .50
2 .25
2 .00
1 .75
1 .50
1 .25
1 .00
0 .75
0 .50
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
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0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .008323705
0 .008323704
0 .008323703
0 .008323702
|
3 .50
3 .25
3 .00
0 .008323701
2 .75
0 .008323700
2 .50
0 .008323699
0 .008323698
0 .008323697
0 .008323696
2 .25
2 .00
1 .75
1 .50
1 .25
0 .008323695
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .0625
0 .0600
0 .0575
0 .0550
0 .0525
0 .0500
0 .0475
0 .0450
0 .0425
0 .0400
0 .0375
0 .0350
0 .0325
0 .0300
0 .0275
0 .0250
0 .0225
0 .0200
0 .0175
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
1 .5
1 .4
1 .3
1 .2
1 .1
1 .0
0 .9
0 .8
0 .7
0 .6
0 .5
0 .4
0 .3
0 .2
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .60
0 .55
0 .50
0 .45
0 .40
0 .35
0 .30
0 .25
0 .20
0 .15
0 .10
0 .05
0 .00
2 .00
1 .75
1 .50
1 .25
1 .00
0 .75
0 .50
0 .25
0 .00
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
200
195
190
185
180
175
170
165
160
155
150
145
140
135
130
125
120
115
5 .50
5 .25
5 .00
4 .75
4 .50
4 .25
4 .00
3 .75
3 .50
3 .25
3 .00
2 .75
2 .50
2 .25
2 .00
1 .75
1 .50
1 .25
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
8 ,500
8 ,000
7 ,500
7 ,000
6 ,500
6 ,000
5 ,500
5 ,000
4 ,500
4 ,000
3 ,500
3 ,000
2 ,500
2 ,000
1 ,500
1 ,000
500
0
0 .0425
0 .0400
0 .0375
0 .0350
0 .0325
0 .0300
0 .0275
0 .0250
0 .0225
0 .0200
0 .0175
0 .0150
0 .0125
0 .0100
0 .0075
0 .0050
0 .0025
0 .0000
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
6 .0
5 .5
5 .0
4 .5
4 .0
3 .5
3 .0
2 .5
2 .0
1 .5
1 .0
0 .5
0 .0
0 .250
0 .225
0 .200
0 .175
0 .150
0 .125
0 .100
0 .075
0 .050
0 .025
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .500000004
0 .500000003
0 .500000002
0 .500000001
0 .500000000
0 .499999999
0 .499999998
0 .499999997
0 .499999996
0 .499999995
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
|
0 .70
0 .65
0 .60
0 .55
0 .50
0 .45
0 .40
0 .35
0 .30
0 .25
0 .20
0 .15
0 .10
0 .05
0 .00
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
7 .0
6 .5
6 .0
5 .5
5 .0
4 .5
4 .0
3 .5
3 .0
2 .5
2 .0
1 .5
1 .0
0 .5
Pout
|
11
10
9
8
7
6
5
4
3
2
1
0 .0
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .250
0 .225
0 .200
0 .175
0 .150
|
0 .500000003
0 .500000002
0 .500000001
0 .125
0 .500000000
0 .100
0 .075
0 .050
0 .499999999
0 .499999998
0 .499999997
0 .025
0 .499999996
1 .4
1 .3
1 .2
1 .1
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .499999995
9 .722222227
9 .722222226
9 .722222225
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
1 .0
0 .9
0 .8
0 .7
0 .6
0 .5
0 .4
0 .3
0 .2
0 .1
|
9 .722222223
9 .722222222
9 .722222221
9 .722222220
9 .722222219
9 .722222218
0 .0
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
21 .600000005
T1 Copper Loss
21 .600000004
|
21 .600000003
0 .175
21 .600000002
0 .150
21 .600000001
21 .600000000
21 .599999999
21 .599999998
0 .125
0 .100
0 .075
21 .599999997
0 .050
21 .599999996
0 .025
21 .599999995
0 .01425
0 .01400
0 .01375
0 .01350
0 .01325
0 .01300
0 .01275
0 .01250
0 .01225
0 .01200
0 .01175
0 .01150
0 .01125
0 .01100
0 .01075
0 .01050
0 .01025
0 .01000
0 .00975
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .000
0 .0375
0 .0350
0 .0325
0 .0300
0 .0275
0 .0250
0 .0225
0 .0200
0 .0175
0 .0150
0 .0125
0 .0100
0 .0075
0 .0050
0 .0025
0 .0000
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
4 .25
4 .00
3 .75
3 .50
3 .25
3 .00
2 .75
2 .50
2 .25
2 .00
1 .75
1 .50
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
3 .75
3 .50
3 .25
3 .00
2 .75
2 .50
2 .25
2 .00
1 .75
1 .50
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
1 .25
1 .25
1 .00
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
0 .85
0 .80
0 .75
0 .70
0 .65
0 .60
0 .55
0 .50
0 .45
0 .40
0 .35
0 .30
0 .25
0 .20
0 .15
0 .10
0 .05
0 .00
0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0
Output Current (A)
Vin= 10 .0 V Vin= 137 .0 V Vin= 264 .0 V
# |
Name |
Value |
Category |
Description |
1. |
Cin Pd |
41.143 mW |
Capacitor |
Input capacitor power dissipation |
2. |
Cout1 IRMS |
1.509 A |
Capacitor |
Output capacitor1 RMS ripple current |
3. |
Cout1 Pd |
36.415 mW |
Capacitor |
Output capacitor1 power dissipation |
4. |
Daux trr |
0.0 ns |
Diode |
Auxiliary Diode Reverse Recovery Time |
5. |
Dsec Pd |
250.0 mW |
Diode |
Secondary Diode Power Dissipation |
6. |
Dsec Vf |
500.0 mV |
Diode |
Effective Forward Voltage Drop at the Operating Current |
7. |
Dsec trr |
0.0 ns |
Diode |
Output Diode Reverse Recovery Time |
8. |
Dsec2 Pd |
250.0 mW |
Diode |
Secondary Diode Power Dissipation |
9. |
Dsec2 Vf |
500.0 mV |
Diode |
Effective Forward Voltage Drop at the Operating Current |
10. |
Dsnub trr |
50.0 ns |
Diode |
Snubber Diode Reverse Recovery Time |
11. |
ICThetaJA |
107.5 degC/W |
IC |
IC junction-to-ambient thermal resistance |
12. |
Iin Avg |
1.39 A |
IC |
Average input current |
13. |
Cin Pd |
41.143 mW |
Power |
Input capacitor power dissipation |
14. |
Cout1 Pd |
36.415 mW |
Power |
Output capacitor1 power dissipation |
15. |
Dsec Pd |
250.0 mW |
Power |
Secondary Diode Power Dissipation |
16. |
Dsec2 Pd |
250.0 mW |
Power |
Secondary Diode Power Dissipation |
17. |
Paux |
14.239 mW |
Power |
Power Dissipation in Raux and Daux |
18. |
Pd Rstartup |
5.254 µW |
Power |
Power Dissipation in Rstartup1 and Rstartup2 |
19. |
Rfb Pd |
8.324 mW |
Power |
Rfb Power Dissipation |
20. |
Rsns Pd |
742.27 mW |
Power |
Current Limit Sense Resistor Power Dissipation |
21. |
Snubber Pd |
226.354 mW |
Power |
Snubber Power Dissipation |
22. |
T1 Copper Loss |
182.09 mW |
Power |
Transformer Copper Loss Power Dissipation |
23. |
T1 Core Loss |
182.09 mW |
Power |
Transformer Core Loss Power Dissipation |
24. |
T1 Pd |
364.18 mW |
Power |
Estimated Losses in Transformer |
25. |
Pd Rstartup |
5.254 µW |
Resistor |
Power Dissipation in Rstartup1 and Rstartup2 |
26. |
Rfb Pd |
8.324 mW |
Resistor |
Rfb Power Dissipation |
27. |
Rsns Pd |
742.27 mW |
Resistor |
Current Limit Sense Resistor Power Dissipation |
28. |
BOM Count |
45 |
System |
Total Design BOM count |
|
|
|
Information |
|
29. |
Duty Cycle |
57.479 % |
System |
Duty cycle |
|
|
|
Information |
|
30. |
FootPrint |
1.738 k mm2 |
System Information |
Total Foot Print Area of BOM components |
31. |
Frequency |
97.403 kHz |
System |
Switching frequency |
|
|
|
Information |
|
32. |
Iout |
1.0 A |
System |
Iout operating point |
|
|
|
Information |
|
33. |
Iout_DCM |
708.622 mA |
System |
Approximate Current below which DCM mode of operation will begin |
|
|
|
Information |
|
34. |
Mode |
CCM |
System |
Conduction Mode |
|
|
|
Information |
|
35. |
Pout |
12.0 W |
System |
Total output power |
|
|
|
Information |
|
36. |
Tdead |
0.0 ns |
System |
Approximate Dead Time of the Regulator |
|
|
|
Information |
|
37. |
Toff |
3.909 us |
System |
Approximate Converter Off Time |
|
|
|
Information |
|
38. |
Ton Act |
5.901 us |
System |
Approximate Converter On Time |
|
|
|
Information |
|
39. |
Total BOM |
NA |
System |
Total BOM Cost |
|
|
|
Information |
|
# |
Name |
Value |
Category |
Description |
40. |
Tsw |
10.267 us |
System |
Switching Time Period |
|
|
|
Information |
|
41. |
Vin |
10.0 V |
System |
Vin operating point |
|
|
|
Information |
|
42. |
Vout |
12.0 V |
System |
Operational Output Voltage |
|
|
|
Information |
|
43. |
Vout Actual |
11.99 V |
System |
Vout Actual calculated based on selected voltage divider resistors |
|
|
|
Information |
|
44. |
Vout Tolerance |
1.926 % |
System |
Vout Tolerance based on IC Tolerance (no load) and voltage divider |
|
|
|
Information |
resistors if applicable |
45. |
Vout p-p |
49.817 mV |
System |
Peak-to-peak output ripple voltage |
|
|
|
Information |
|
46. |
Vout pp percentage |
415.138 m% |
System |
Output Voltage ripple percentage |
|
|
|
Information |
|
47. |
Vsnub |
21.6 V |
System |
Voltage Across the Snubber |
|
|
|
Information |
|
48. |
Ipri Avg |
1.509 A |
Transformer |
Average Current in Primary Winding over the complete Switching |
|
|
|
|
Period |
49. |
Ipri ripple |
3.114 A |
Transformer |
Ripple Current in the Primary Winding |
50. |
Ipri ripple pk-pk |
118.561 % |
Transformer |
Primary Current pk-pk ripple percentage(of Ipri avg during ton only) |
|
percentage |
|
|
|
51. |
Isec Ripple |
3.114 A |
Transformer |
Ripple Current in the Secondary Winding |
52. |
Paux |
14.239 mW |
Transformer |
Power Dissipation in Raux and Daux |
53. |
T1 Copper Loss |
182.09 mW |
Transformer |
Transformer Copper Loss Power Dissipation |
54. |
T1 Core Loss |
182.09 mW |
Transformer |
Transformer Core Loss Power Dissipation |
55. |
T1 Iprim RMS |
2.104 A |
Transformer |
Transformer Primary RMS Current |
56. |
T1 Iprim pk |
4.183 A |
Transformer |
Transformer Primary Peak Current |
57. |
T1 Is1 RMS |
1.81 A |
Transformer |
Transformer Secondary1 RMS Current |
58. |
T1 Is1 pk |
4.183 A |
Transformer |
Transformer Secondary1 Peak Current |
59. |
T1 Pd |
364.18 mW |
Transformer |
Estimated Losses in Transformer |
60. |
Vaux |
9.722 V |
Transformer |
Auxiliary Voltage |
Design Inputs Name |
Value |
Description |
Iout |
1.0 |
Maximum Output Current |
VinMax |
264.0 |
Maximum input voltage |
VinMin |
10.0 |
Minimum input voltage |
Vout |
12.0 |
Output Voltage |
base_pn |
UCC2813-0 |
Base Product Number |
source |
DC |
Input Source Type |
Ta |
30.0 |
Ambient temperature |
WEBENCH® Assembly
Component Testing
Some published data on components in datasheets such as Capacitor ESR and Inductor DC resistance is based on conservative values that will guarantee that the components always exceed the specification. For design purposes it is usually better to work with typical values. Since this data is not always available it is a good practice to measure the Capacitance and ESR values of Cin and Cout, and the inductance and DC resistance of L1 before assembly of the board. Any large discrepancies in values should be electrically simulated in WEBENCH to check for instabilities and thermally simulated in WebTHERM to make sure critical temperatures are not exceeded.
If board assembly is done in house it is best to tack down one terminal of a component on the board then solder the other terminal. For surface mount parts with large tabs, such as the DPAK, the tab on the back of the package should be pre-tinned with solder, then tacked into place
by one of the pins. To solder the tab town to the board place the iron down on the board while resting against the tab, heating both surfaces simultaneously. Apply light pressure to the top of the plastic case until the solder flows around the part and the part is flush with the PCB. If the solder is not flowing around the board you may need a higher wattage iron (generally 25W to 30W is enough).
It is best to initially power up the board by setting the input supply voltage to the lowest operating input voltage 10.0V and set the input supply's current limit to zero. With the input supply off connect up the input supply to Vin and GND. Connect a digital volt meter and a load if needed
to set the minimum Iout of the design from Vout and GND. Turn on the input supply and slowly turn up the current limit on the input supply. If the voltage starts to rise on the input supply continue increasing the input supply current limit while watching the output voltage. If the current increases on the input supply, but the voltage remains near zero, then there may be a short or a component misplaced on the board.
Power down the board and visually inspect for solder bridges and recheck the diode and capacitor polarities. Once the power supply circuit is operational then more extensive testing may include full load testing, transient load and line tests to compare with simulation results.
The setup is the same as the initial startup, except that an additional digital voltmeter is connected between Vin and GND, a load is connected between Vout and GND and a current meter is connected in series between Vout and the load. The load must be able to handle at least rated output power + 50% ( 7.5 watts for this design). Ideally the load is supplied in the form of a variable load test unit. It can also be done in the form of suitably large power resistors. When using an oscilloscope to measure waveforms on the prototype board, the ground leads of the oscilloscope probes should be as short as possible and the area of the loop formed by the ground lead should be kept to a minimum. This will help reduce ground lead inductance and eliminate EMI noise that is not actually present in the circuit.
# Name Value
Turns 9.0
AWG 29.0
Layers 2.0
Strands 4.0
Insulation Type Heavy Insulated Magnet Wire
Turns 7.0
AWG 28.0
Layers 1.0
Strands 2.0
Insulation Type Heavy Insulated Magnet Wire
Turns 9.0
AWG 27.0
Layers 2.0
Strands 2.0
Insulation Type Triple Insulated
Winding Instruction
Winding |
|
AWG |
|
Turns |
|
Winding Orientation |
Primary First 1/2.0 |
|
29.0 |
|
5 |
|
Clockwise |
Auxiliary |
|
28.0 |
|
7.0 |
|
Counter Clockwise |
Triple Insulated Secondary |
|
27.0 |
|
9.0 |
|
Counter Clockwise |
Primary Second 1/2.0 |
|
29.0 |
|
4 |
|
Clockwise |
Transformer Parameters
# Name Value
1. Master key : 2CD6EBCA95555025[v1]
David,
apologies. There is no file here. Could you try to reattach as word or jpg or pdf or similar?
Regards,
John
David,
I believe you can print the webench design as a word or PDF. You may consider to reattach. it's quite difficult to read as plain text in this dialog box.
Coming back to your original question though- what are you hoping to simulate exactly in SPICE environment? What type of behavior? And what trouble are you seeing previously when you try to do it?
Regards,
John
Hello John,
Which button allows the pdf file to be attached. According to this GUI it accepts Word documents.
We want to simulate the design over our operating temperature range, over our entire input range, and over our entire output load range. To do this, we need to know how to set up the TINA spice model for the transformer. We have been able to enter all of the other components.
I could also send it to your email address.
I just opened Webench again and put in the parameters and it spit out the same design.You could also do that to get the circuit.
VinMin = 10.0V
VinMax = 264.0V
Vout = 12.0V
Iout = 1.0A
Device = UCC2813DTR-0
Topology = Flyback
Best Regards,
David R. Baum
David,
I ran a webench design with newest generation of this product family UCC28C40. You could also use UCC28C40-Q1 as well if you have higher operating current requirements for example. It should be very similar to what you saw with UCC2813. Attached are my webench design report and xfmr design document.
I recommends a TDK core and Bobbin here. If you see that there are xfmr parameters not included that you would like modelled in your Spice setup, like leakage inductance, or specific winding resistances, or other, it may be best to connect with TDK directly to get those additional parameters. Perhaps they even have a model block that you could leverage. A TDK contact I have is:
Mike O'Toole <mike.o'toole@us.tdk.com>
Please let me know if you have other questions.
Hello John,
Sorry for the late response. I have had an upper respiratory infection.
Is it possible to get the TINA spice model for the transformer. Nobody here has ever set up a transformer in TINA spice. We normally use GeckoCircuits for power simulation, but GeckoCircuits doesn't have models for the UCC2813. If you could send me a simple TINA spice file with the transformer set up, that would be great.
David,
I'm sorry to hear that. I hope you're feeling better. I'm going to ask an applications engineer to dig around for existing TINA spice models. Perhaps he has an example that would be useful for you to leverage and modify. Please expect a response by Friday.
Regards,
John
Hi David,
Thanks for connecting through E2E. The TINA transformer model is represented as an "ideal transformer", compared to the Webench model which is trying to help you design a customer transformer. The transformer parameters listed from your Webench result will have to be lumped and represented in TINA. For example, the primary DC resistance is shown below as R12, secondary dc resistance is R18, transformer primary magnetizing inductance is modeled by L1 and if you wanted to simulate the effect of leakage inductance (not shown below) you could add a small series inductor at pin1 and/or pin 4. If you click on the transformer box, you see the only parameter we can enter is "RATIO" and this is where you need to use the turns ratio numbers from Webench. You could repeat this process for each additional winding.
Regards,
Steve M