Invention Grant
US08582322B2 Power reduction of a power supply unit at light loading or no loading
有权
电源单元在轻负载或无负载时的功率降低
- Patent Title: Power reduction of a power supply unit at light loading or no loading
- Patent Title (中): 电源单元在轻负载或无负载时的功率降低
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Application No.: US13419542Application Date: 2012-03-14
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Publication No.: US08582322B2Publication Date: 2013-11-12
- Inventor: Kuo-Chi Liu , Fu-Sheng Tsai , Chung-Cheng Chang , Kuang-Feng Li , Yen-Te Lee
- Applicant: Kuo-Chi Liu , Fu-Sheng Tsai , Chung-Cheng Chang , Kuang-Feng Li , Yen-Te Lee
- Applicant Address: TW Hsinchu
- Assignee: Richtek Technology Corp.
- Current Assignee: Richtek Technology Corp.
- Current Assignee Address: TW Hsinchu
- Agency: Muncy, Geissler, Olds & Lowe, PLLC
- Priority: TW100109314A 20110318
- Main IPC: H02M3/335
- IPC: H02M3/335 ; H02M7/44
Abstract:
A power supply unit includes a switching power converter responsive to a control signal to switch a power switch thereof to provide an output voltage and an output current for a load. To reduce light-load or no-load power consumption of the power supply unit, the power supply unit repeats a process of stopping switching the power switch and recovering switching the power switch for a period of time once the output voltage decreases to be lower than a reference voltage.
Public/Granted literature
- US20120235658A1 POWER REDUCTION OF A POWER SUPPLY UNIT AT LIGHT LOADING OR NO LOADING Public/Granted day:2012-09-20
Information query
IPC分类:
