Invention Grant
US07411379B2 Apparatus and method for over-voltage and over-current protection for a step-up current-mode converter
失效
用于升压电流模式转换器的过电压和过电流保护的装置和方法
- Patent Title: Apparatus and method for over-voltage and over-current protection for a step-up current-mode converter
- Patent Title (中): 用于升压电流模式转换器的过电压和过电流保护的装置和方法
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Application No.: US11305237Application Date: 2005-12-19
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Publication No.: US07411379B2Publication Date: 2008-08-12
- Inventor: Kwan-Jen Chu , Chung-Lung Pai , Chun-Chin Tung , Jing-Meng Liu
- Applicant: Kwan-Jen Chu , Chung-Lung Pai , Chun-Chin Tung , Jing-Meng Liu
- Applicant Address: TW Hsinchu
- Assignee: Richtek Technology Corp.
- Current Assignee: Richtek Technology Corp.
- Current Assignee Address: TW Hsinchu
- Agency: Rosenberg, Klein & Lee
- Priority: TW93139896A 20041221
- Main IPC: G05F1/56
- IPC: G05F1/56
Abstract:
In an apparatus for over-voltage and over-current protection for a step-up current-mode converter including an inductor connected via a phase node to a switch that is switched by a control signal to convert an input voltage to an output voltage, a controller has a multiplexed pin, and a resistor and a capacitor are connected in parallel between the multiplexed pin and the phase node. In an over-voltage protection mode, the controller senses the voltage on the multiplexed pin, and in an over-current protection mode, the controller supplies a current to flow through the resistor and senses the voltage on the multiplexed pin.
Public/Granted literature
- US20060132997A1 Apparatus and method for over-voltage and over-current protection for a step-up current-mode converter Public/Granted day:2006-06-22
Information query
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