公开(公告)号：US20140084888A1

公开(公告)日：2014-03-27

申请号：US14029048

申请日：2013-09-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwangho Kim ,  DongHun Heo

IPC: H02M3/157

CPC classification number: H02M3/157 ,  H02M3/1563

Abstract: A power supply unit converting a DC power supply using an inductor includes a feedback circuit dividing an output voltage being output from a first end of the inductor to convert the output voltage into a first feedback voltage; a differentiator differentiating the first feedback voltage to convert the first feedback voltage into a second feedback voltage; a hysteresis comparator comparing a level of the second feedback voltage with a reference voltage band to output a comparison signal; and a switch pulling an input voltage up or pulling the input voltage down to the second end of the inductor with reference to the comparison signal.

Abstract translation: 使用电感器转换DC电源的电源单元包括：反馈电路，其分割从电感器的第一端输出的输出电压，将输出电压转换为第一反馈电压; 区分第一反馈电压以将第一反馈电压转换成第二反馈电压的微分器; 比较第二反馈电压的电平与参考电压带的迟滞比较器，以输出比较信号; 以及参考比较信号将输入电压上拉或将输入电压向下拉到电感器的第二端的开关。