Patent ID: 7200012

Claim:
A circuit of full-bridge inverter controlled by a push-pull pulse width modulator, capable of converting direct current to alternate current via a transformer, comprising: a push-pull pulse width modulator, having a first push-pull output terminal and a second push-pull output terminal to produce respectively a first push-pull signal and a second push-pull signal; a transforming circuit, utilizing the first push-pull signal and the second push-pull signal to delay a starting point or an ending point of every pulse to produce respectively a first transforming signal, a second transforming signal, a third transforming signal and a fourth transforming signal; and a full-bridge switch unit, comprising a first electronic switch, a second electronic switch, a third electronic switch and a fourth electronic switch, wherein the first transforming signal, the second transforming signal, the third transforming signal and the fourth transforming signal are used to control respectively on and off statues of the four electronic switches so that the direct current can be converted into an alternate current that is transmitted to a primary winding of the transformer.