Circuit topology structure of low voltage input isolated form multichannel output switch power

The utility model discloses a circuit topology structure of low voltage input isolated form multichannel output switch power, this circuit topology structure includes boost circuit, power conversion circuit and rectifier circuit, boost circuit connects the power conversion circuit, power conversion circuit connection rectifier circuit. Multichannel isolation voltage's under low voltage input's the condition output has been realized to this circuit, has reduced the packaging density and the manufacturing cost of product. 本实用新型公开了种低电压输入隔离型多路输出开关电源的电路拓扑结构，该电路拓扑结构包括升压电路、功率变换电路和整流电路；所述升压电路连接功率变换电路，所述功率变换电路连接整流电路。本电路实现了在低电压输入的情况下多路隔离电压的输出，降低了产品的组装密度及生产成本。