CONTROL SIGNAL GENERATING CIRCUIT OF FULL-BRIDGE CONVERTER

摘要

PURPOSE: A control signal generation circuit of a full bridge converter is provided to implement zero voltage switching(ZVS) by using cheap and simple passive elements as preventing the problem of various noise. CONSTITUTION: A control signal generation circuit(100) includes a pulse width control part(110) and a ZVS driving signal generation part(120). The pulse width control part controls a feedback signal according to a command inputted from a user. The ZVS driving signal generation part is composed of passive elements. The ZVS driving signal generation part generates a driving signal by shifting the phase of a PWM signal through logic operation. A front switching module(310) and a rear switching module(320) are used as a bulk semiconductor switch.