公开(公告)号：US5434768A

公开(公告)日：1995-07-18

申请号：US16885

申请日：1993-02-12

Applicant: Ionel Jitaru ,  Beldianu Vasile

Inventor： Ionel Jitaru ,  Beldianu Vasile

IPC: H02M3/335

CPC classification number: H02M3/33569

Abstract: A converter is operated with a main switch in series circuit with primary winding of the isolation transformer and an auxiliary switch for charging a reset capacitor also in circuit with the primary winding. The main switch and auxiliary switch are operated through control logic so that neither switch is ON at the same time. A predetermined dead time is provided between turning OFF the auxiliary switch and turning ON the main switch to allow the output capacitance of the main switch to discharge to zero. The power is transferred to the output during the ON and OFF time of the main switch. The power can be transferred to the output also during only the off time. In the case when the power is transferred from the primary to the secondary during both ON and OFF time, an inductor or a saturable reactor is series circuit with the secondary or a selectively controlled rectifier is used.

Abstract translation: A转换器采用串联电路的主开关，隔离变压器的初级绕组和辅助开关，用于在初级绕组的电路中对复位电容充电。 主开关和辅助开关通过控制逻辑运行，两个开关都不会同时接通。 在关闭辅助开关和接通主开关之间提供预定的死区时间，以允许主开关的输出电容放电至零。 在主开关的ON和OFF时间内，电源被传送到输出端。 电源也可以在关闭时间内传输到输出端。 在ON和OFF时间期间电源从初级转换到次级的情况下，电感器或可饱和电抗器是使用次级或可选择性控制的整流器的串联电路。