Invention Grant
- Patent Title: Power supply system and method for controlling output voltage
- Patent Title (中): 电源系统及控制输出电压的方法
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Application No.: US11898575Application Date: 2007-09-13
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Publication No.: US07679343B2Publication Date: 2010-03-16
- Inventor: Masatoshi Kokubun , Takashi Matsumoto
- Applicant: Masatoshi Kokubun , Takashi Matsumoto
- Applicant Address: JP Yokohama
- Assignee: Fujitsu Microelectronics Limited
- Current Assignee: Fujitsu Microelectronics Limited
- Current Assignee Address: JP Yokohama
- Agency: Arent Fox LLP
- Priority: JP2006-251584 20060915
- Main IPC: G05F1/40
- IPC: G05F1/40 ; H02J7/00
Abstract:
A power supply system including an external power supply unit generating direct-current output voltage and an electronic device connected to the external power supply unit and operable on the output voltage of the external power supply unit. The external power supply unit includes a voltage control circuit receiving control current and controlling the output voltage of the external power supply unit in accordance with the control current. The voltage control circuit controls the output voltage of the external power supply unit to be equal to the minimum voltage possible for the external power supply unit to generate when the control current is minimum.
Public/Granted literature
- US20080068871A1 Power supply system and method for controlling output voltage Public/Granted day:2008-03-20
Information query
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