Hello Rock Shao.
The UCC3817 is very similar to the UCC3854 and it can be used to provide power factor correction from 40Hz to 440Hz. You will need to design your application for the required input voltage range and your power factor will depend on…
Part Number: UCC3817 Other Parts Discussed in Thread: UC2854 , , UCC28180 My question or observation concerns the PFC part differences between the ucc3817 vs. UC2854 units
The internal multiplier output (Imo) is hard-connected either to the inverting…
Part Number: UCC3817 hello,
How to know the 1) Hold-up time (Output Capacitor design) for design of 1.5kW , 425V Vout. ?
and in below mentioned formula Vout is 385 But how to know Vout(min) ?
www.ti.com/.../ucc3817.pdf
thank you
regards…
Part Number: UCC3817 hello,
can anyone Plz help me out to solve this following qn.
1. How to design Rsense resistor value and wattage of resistor in PFC application ( Pout-1.5KW, Vout-425v, Vin rms - 85 to 265V ).and
2. power section for UCC3817…
Part Number: UCC3817 hello,
can you please provide detail (How to design) of vcc supply design (Red circled portion) in below mentioned attachment of Application of UCC3817 (datasheet)
http://www.ti.com/lit/ds/symlink/ucc3817.pdf
thank you…
Part Number: UCC3817 hello,
Is extra Driver IC requied for a design of ( Output Power -1.5KW, Output Voltage - 425V ) boost PFC using UCC3817 ?.
thank you
Regards,
Bharat Upadhye
Part Number: UCC3817 For Design of BOOST PFC
input voltage- 100(min) to 300(max)
frequency- 50Hz
Output voltage- 400 (min) 450(max)
Output Power- 1.5Kw
Switching frequency - 100Khz
can be design using UCC3817 PFC ic ?
if not please suggest…
Part Number: UCC3817 Hello guys,
One of my customers is about to evaluate UCC3817 using TI official EVM.
They want to know how to calcurate Rsense(R14 in Figure 9 on page 16 of the device datasheet). The maximum current they want to set is 6A.
Could…
Hello Kazuya Nakai,
The calculator tool is located here :
www.ti.com/.../getliterature.tsp
This is the only calculator available for the UCC3817.
Regards
John
