MR4040 Datasheet, Shindengen

Warning Special applications Transport equipment (e.g., automobiles and ships), communications equipment for a backbone.

3. Operating principles 3.1 Startup circuit 3.2 On-trigger circuit 3.3 Partial resonance 3.4 Standby mode control (patent pending) 3.5 Output voltage control (normal operation) 3.6 Soft drive circuit (patent pending) 3.7 Circuit for load shorts 3.8 C.