公开(公告)号：US20130194837A1

公开(公告)日：2013-08-01

申请号：US13801533

申请日：2013-03-13

Applicant: RICHTEK TECHNOLOGY CORP.

Inventor： Tzu Chen LIN ,  Pei Lun HUANG

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M3/335 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A control circuit and method are provided for a flyback converter converting an input voltage to an output voltage, to compensate for an entry point of a burst mode of the flyback converter, so that the entry point is not affected by the input voltage, and audible noise resulted from a higher input voltage is reduced without impacting the light load efficiency of the flyback converter.

Abstract translation: 提供了一种控制电路和方法，用于将反相转换器将输入电压转换为输出电压，以补偿反激式转换器的突发模式的入口点，使得入口点不受输入电压的影响，并且可听见 由于较高的输入电压导致的噪声降低，而不会影响反激式转换器的轻负载效率。