Transcription of An Improved 2-Switch Forward Converter Application
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An Improved 2-Switch Forward Converter Application
An Improved 2-Switch Forward Converter ApplicationAgenda1. Generalities on Forward converters2. Core reset: tertiary winding, RCD clamp, 2-Switch forward3. Specs review of the NCP1252 s demo board4. Power components calculation 5. NCP1252 components calculation6. Closed-loop feedback: simulations and compensation7. Demo board schematics & Board performance review9. ConclusionsAgenda1. Generalities on Forward converters2. Core reset: tertiary winding, RCD clamp, 2-Switch forward3. Specs review of the NCP1252 s demo board4. Power components calculation 5. NCP1252 components calculation6. Closed-loop feedback: simulations and compensation7. Demo board schematics & Board performance review9. ConclusionsGeneralities About the 1-Switch Forward ConverterPROs It is a transformer-isolated buck-derived topology It requires a single transistor, ground referenced Non-pulsating output current reduces rms content in the capsCONs Smaller power capability than a full or half-bridge topology Limited in duty-cycle (duty ratio) excursion because of core reset The drain voltage swings to twice the input voltage or moreAgenda1.
Generalities About the 1-Switch Forward Converter PROs It is a transformer-isolated buck-derived topology It requires a single transistor, ground referenced
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