Invention Grant
US07656133B2 Capacitor charger with a modulated current varying with an input voltage and method thereof
失效
具有随输入电压变化的调制电流的电容器充电器及其方法
- Patent Title: Capacitor charger with a modulated current varying with an input voltage and method thereof
- Patent Title (中): 具有随输入电压变化的调制电流的电容器充电器及其方法
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Application No.: US12385020Application Date: 2009-03-30
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Publication No.: US07656133B2Publication Date: 2010-02-02
- Inventor: Chung-Lung Pai , Kwan-Jen Chu , Chun-Yen Huang , Jing-Meng Liu
- Applicant: Chung-Lung Pai , Kwan-Jen Chu , Chun-Yen Huang , 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: TW92136915A 20031225
- Main IPC: H02J7/00
- IPC: H02J7/00
Abstract:
In a capacitor charger including a transformer having a primary winding connected with an input voltage and a secondary winding for transforming a primary current flowing through the primary winding to a secondary current flowing through the secondary winding, the primary current is adjusted according to a monitoring voltage varying with the input voltage, thereby prolonging the lifetime of the battery that provides the input voltage and improving the power efficiency of the battery.
Public/Granted literature
- US20090195221A1 Capacitor charger with a modulated current varying with an input voltage and method thereof Public/Granted day:2009-08-06
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