- Patent Title: Power control device, power supply device, and power control method
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Application No.: US12778812Application Date: 2010-05-12
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Publication No.: US08476881B2Publication Date: 2013-07-02
- Inventor: Toshihiko Kasai , Hidenobu Ito
- Applicant: Toshihiko Kasai , Hidenobu Ito
- Applicant Address: JP Yokohama
- Assignee: Fujitsu Semiconductor Limited
- Current Assignee: Fujitsu Semiconductor Limited
- Current Assignee Address: JP Yokohama
- Agency: Arent Fox LLP
- Priority: JP2009-119475 20090518
- Main IPC: G05F1/10
- IPC: G05F1/10 ; G05F1/652 ; G05F1/44
Abstract:
A power control device for performing switching control for an output voltage of a power supply device includes a signal generation circuit for comparing a difference between a value of the output voltage and a value of a first reference voltage with a value of a second reference voltage, and for stopping the switching control when a value of the difference is less than or equal to the value of the second reference voltage, and an adjuster circuit for adjusting the second reference voltage based on a ratio between a value of an input voltage and the value of the output voltage.
Public/Granted literature
- US08541996B2 Power control device, power supply device, and power control method Public/Granted day:2013-09-24
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