Reference Designs
120VAC Input, 48V/12V 32W Flyback Reference Design
Texas Instruments
The PMP9727 reference design uses the UCC28740 flyback controller to generate both a 12V/1A and 48V/0.4A outputs from a 120V AC input. The valley switching of the UCC28740 allows this low-cost design to provide an efficiency of over 89%; no load losses are less than 80mW.
Features
- Peak efficiency approaches 90%
- Losses at no load are less than 80mW
- 120Vac input generates outputs of 12V/1A and 48V/0.4A
- Board length is approximately 64mm
- Test report is available
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