HI Team
I want to control the speed of the motor by using TL494 but when I searched in texas I found nothing related to Pspice model for to simulate in LTspice but one of the engineer tried for spice model and I am attaching here when I am tried the speed does not changes and output pulses don't vary.
can you check the spice model and is there any problem in that can you rectify and send me.
with Regards
Vinaykumar
HCL Technologies
* TL494.asc * 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 .subckt tl494 1IN+ 1IN- FB DTC CT RT GND C1 E1 E2 C2 VCC OC REF 2IN- 2IN+ XEA1 1IN+ 1IN- VCC 0 N015 level.2 Avol=1e5 GBW=1Meg Slew=10k ilimit=25m rail=0 Vos=0 phimargin=45 en=0 enk=0 in=0 ink=0 Rin=1Meg XEA2 2IN+ 2IN- VCC 0 N016 level.2 Avol=1e5 GBW=1Meg Slew=10k ilimit=25m rail=0 Vos=0 phimargin=45 en=0 enk=0 in=0 ink=0 Rin=1Meg V�DT N007 DTC 0.12 V2 N014 CT 0.7 A1 0 N005 0 N011 0 0 N009 0 OR vhigh=4.8 td=50n A2 0 N006 0 N009 0 N002 0 0 OR vhigh=4.8 td=50n A3 0 N010 0 N009 0 N012 0 0 OR vhigh=4.8 td=50n A4 0 OC` 0 N008 0 0 N006 0 AND vhigh=4.8 td=50n A5 0 N004 0 OC` 0 0 N010 0 AND vhigh=4.8 td=50n E1 OC` 0 OC 0 1 A6 N004 0 N009 N001 0 N004 N008 0 DFLOP vhigh=4.8 vlow=0.2 td=50n I2 FB 0 0.7m R1 N003 N002 470 R2 N013 N012 470 R4 N003 E1 2k7 R5 N013 E2 2k7 Q3 RT RT Ref 0 PNP Q4 CT RT Ref 0 PNP S1 0 CT ctl 0 SW off A10 CT 0 0 0 0 0 ctl 0 SCHMITT vhigh=1 vlow=-1 vt=1.5 vh=1.495 td=10n tripdt=1n R3 VCC Ref 270 R6 N001 0 470 C1 N001 VCC 1n XU1 N007 CT VCC 0 N005 level.2 Avol=1G GBW=1G Slew=1G ilimit=25m rail=0 Vos=0 phimargin=45 en=0 enk=0 in=0 ink=0 Rin=500Meg XU2 FB N014 VCC 0 N011 level.2 Avol=1G GBW=1G Slew=1G ilimit=25m rail=0 Vos=0 phimargin=45 en=0 enk=0 in=0 ink=0 Rin=500Meg Q1 C1 N1010 E1 0 NPN Q2 C2 N1011 E2 0 NPN E1000 N1000 0 N003 0 2.1875 E1001 N1001 0 N013 0 2.1875 R1000 N1000 N1010 100 R1001 N1001 N1011 100 D3 0 Ref DZ D1 N016 FB D D2 N015 FB D D4 N001 VCC D D5 0 N001 D .model D D .model NPN NPN .model PNP PNP .model sw sw(ron=1) .lib ltc.lib .model dz d(vrev=5) .lib UniversalOpamps2.sub .ends tl494
