93% Full-load efficiency (60% at 125mW), 310W industrial AC/DC reference design
PMP30521
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Key Document
- 93% Full-Load Efficiency (60% at 125 mW), 310-W Industrial AC/DC Ref Design
(PDF 1898 KB)
02 Apr 2019
Description
This reference design is a compact and high efficient two-stage power supply. The front-end stage is a CCM power factor correction (PFC) based on UCC28180.The second stage is based on UCC256304, which drives a resonant 310 W LLC converter with two outputs, 19 V and 56 V. The board does not need any auxiliary supply and draws only 250 mW from mains (with PFC off), while supplying 150 mW load.
Features
- High-efficiency 310W isolated power supply with PFC and resonant LLC stages
- Low no-load power consumption without using auxiliary supply
- 93% full-load efficiency at 230-Vac input; it draws only 250mW while supplying 150 mW load
- Compact board with integrated heat sinks
See the Important Notice and Disclaimer covering reference designs and other TI resources.