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[Ô­´´]Onsemi NCP1680ͼÌÚÖùÁٽ絼ͨģʽ(CRM)PFC¿ØÖÆÆ÷½â¾ö·½°¸

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The NCP1680 is a CRM PFC controller IC designed to drive the bridgeless totem-pole PFC topology. The bridgeless totem-pole PFC is a power factor correction architecture that consists of a fast switching leg driven at the PWM switching frequency and a second leg that operates at the AC line frequency. This topology eliminates the diode bridge present at the input of a conventional PFC circuit, allowing significant improvement in the power stage efficiency.

NCP1680Ö÷ÒªÌØÐÔ:        

Totem Pole PFC Topology Eliminates Input Diode Bridge

Critical Conduction Mode (CRM) Operation                           

Discontin..

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