基于UC3845的单端反激DC/DC变换器的研究

The designing of establish the UC3845 single flyback DC-DC converters

本文论述了基于UC3845的单端反激DC-DC变换器的研究,电路采用单端反激变换拓扑结构,开关频率可达200kHz,效率较高(约90%),提供多组隔离的双极性直流电压输出,有效降低了开关噪声干扰以及开关功率损耗,提高了电源的可靠性,节省了成本,填补了目前市场上这一产品的空白。

This article describes the design based on the UC3845 single flyback DC-DC converters, Using single transform flybaek topology, switching frequency of up to 200 kHz, high efficiency （about 90%）, provide group isolated bipolar DC voltage output,and effectively lowers the switching noise interference, and switching power loss, improve the reliability of power supply, cost savings, fill the current market the product gaps.