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10W 12V SMPS Evaluation board using ICE3BR4765JG

This document is an engineering report of a universal input 12V 10W off-line flyback converter power supply utilizing IFX F3R CoolSET® ICE3BR4765JG. The application demo board is operated in Discontinuous Conduction Mode (DCM) and is running at 65 kHz switching frequency. It has a one output voltage with secondary side control regulation. It is especially suitable for small power supply such as DVD player, set-top box, game console, charger and auxiliary power of high power system, etc. The ICE3BR4765JG is the latest version of the CoolSET® . Besides having the basic features of the F3 CoolSET® such as Active Burst Mode, propagation delay compensation, soft gate drive, auto restart protection for serious fault (Vcc over voltage protection, Vcc under voltage protection, over temperature, over-load, open loop and short opto-coupler), it also has the BiCMOS technology design, built-in soft start time, built-in and extendable blanking time, frequency jitter feature with built-in jitter period and external auto-restart enable, etc. The particular features needs to be stressed are the best in class low standby power and the good EMI performance.

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Aug 19, 2011