AC to DC 56V, 25A charger

A.S.Bhushan

Expert 1060 points

Other Parts Discussed in Thread: UCC28180, UCC28070, UCC28950, PMP8740, TIDA-00779

Hi all,

I have to design AC-DC Converter as per below specs

1. 230V+/- 20V AC, 50Hz input

2. 56V, 25A DC output.

3. Input to output isolation required.

Please suggest us any IC/ design/ Circuit/ Idea regarding this.

regards,

A.S.Bhushan

over 7 years ago

0 Peter Meaney over 7 years ago

TI__Mastermind 31580 points

Hi

You need a two stage approach, PFC + DC/DC isolation stage.

For the PFC stage I recommend the UCC28180 PFC controller or the UCC28070 two phase interleaved PFC stage controller
www.ti.com/.../description
www.ti.com/.../UCC28070

For the DC/DC stage UCC28950 is a phase shifted full bridge which is a good choice at these power levels.
www.ti.com/.../UCC28950

I have listed some reference designs below.

UCC28070 (-Q1) PR779 A 1.2kW Universal Input Interleaved CCM PFC Power Board http://www.ti.com/tool/pr779
85 - 270 VAC 390 V 1200 W

UCC28950 (-Q1) + UCC28180 PMP8740 Design Review of a 2-kW Parallelable Power Supply Module www.ti.com/.../slup349.pdf
90 - 265 VAC 20 - 32 V 2000 W

UCC28070 (-Q1) PMP4259 Pre-Regulator for Air Conditioner 390Vdc Output with 3kW http://www.ti.com/tool/pmp4259
90 - 264 VAC 390 V 3000 W

UCC28180 TIDA-00779 230-V, 3.5-kW PFC with >98% Efficiency, Optimized for BOM and Size Reference Design www.ti.com/.../TIDA-00779
190 - 270 VAC 390 V 3500 W

UCC28070 (-Q1) PMP4311 5KW Interleaved CCM Power Factor Correction Converter http://www.ti.com/tool/pmp4311
180 - 264 VAC 400 V 4800 W

Regards

Peter

Power management

Power management forum

AC to DC 56V, 25A charger