Invention Grant
US07580271B2 Apparatus and method for suppressing the input current inrush for a voltage converter in a pre-charge stage
有权
用于在预充电阶段抑制电压转换器的输入电流浪涌的装置和方法
- Patent Title: Apparatus and method for suppressing the input current inrush for a voltage converter in a pre-charge stage
- Patent Title (中): 用于在预充电阶段抑制电压转换器的输入电流浪涌的装置和方法
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Application No.: US11826207Application Date: 2007-07-13
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Publication No.: US07580271B2Publication Date: 2009-08-25
- Inventor: Yun-Chi Chiang , Kwan-Jen Chu , Jien-Sheng Chen
- Applicant: Yun-Chi Chiang , Kwan-Jen Chu , Jien-Sheng Chen
- Applicant Address: TW Hsinchu
- Assignee: Richtek Technology Corp.
- Current Assignee: Richtek Technology Corp.
- Current Assignee Address: TW Hsinchu
- Agency: Rosenberg, Klein & Lee
- Priority: TW96121213A 20070612
- Main IPC: H02M3/335
- IPC: H02M3/335

Abstract:
An apparatus and method are provided for suppressing the input current inrush for a voltage converter in a pre-charge stage. The voltage converter comprises a power input for receiving an input current, a power output for supplying an output voltage for a load, and an output capacitor connected to the power output. In a pre-charge stage, a current limiting device is connected between the power input and the output capacitor to limit the input current to flow therethrough, and a variable current limiting control circuit provides a control signal to the current limiting device to determine a variable maximum value for the input current.
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