Switched mode power supply comprising a rectifier circuit

摘要

The switched mode power supply comprises an inductor (TR), a switching transistor (T1) coupled in series with the inductor (TR), and a rectifier circuit. The rectifier circuit comprises a switch (T3) coupled with the inductor (TR) for a rectification of an output voltage (Vs) and a control circuit (MC1) operating in a monostable mode. The switch (T3) is operated in particular in a synchronous mode with the same switching frequency as the switching transistor (T1, T2). The rectifier circuit can be used advantageously with a switched mode power supply having a push-pull half-bridge configuration and operating as a resonant converter or a quasi-resonant converter with soft switching for an application within a plasma television set.