UC2843: Suitable circuit to get 100Vdc,15 Amps with input as 200Vac

Arkaprava Sinha

Part Number: UC2843
Other Parts Discussed in Thread: UCC28951, UCC28950, UCC256301, UCC25630-1EVM-291

My input is 200Vac and output is 80~100Vdc,15Amps...I thought of using UC2843 for this application but in webench I cant siumulate that. Please help me to understand which circuit/schematic will be suitable for my requirement.

Also if you have any better proposal or option please tell me.

Thanks&Regards,

Arkaprava SInha

over 6 years ago

0 Teng Feng over 6 years ago

TI__Genius 13660 points

Hi Arkaprava,

Since the power is little high, UC2843 is not a smart choice.
You can use Phase-Shifted Full-Bridge Controller UCC28951/UCC28950 or LLC Resonant Controller UCC25630X.

Regards,
Teng

0 Arkaprava Sinha over 6 years ago in reply to Teng Feng

Intellectual 260 points

Hi Teng,

I checked specifications of LLC Resonant controller UCC256301 & It is meeting my requirements.
If I follow UCC256301 datasheet application schematic diagram and calculate all components based on my requirements then will it be ok????

Thanks&Regards,
Arkaprava SInha

0 Teng Feng over 6 years ago in reply to Arkaprava Sinha

TI__Genius 13660 points

Hi Arkaprava,

You can refer to TI reference design UCC25630-1EVM-291, which has been verified working well.
www.ti.com/.../toolssoftware
And I have attached the Design Calculator and Practical Design Guidelines, which will help you design better and quickly.

6560.UCC25630x Design Calculator.xlsx 7633.UCC25630x Practical Design Guidelines.pdf

Regards,
Teng

Power management

Power management forum

UC2843: Suitable circuit to get 100Vdc,15 Amps with input as 200Vac