Invention Grant
- Patent Title: Step-up/down type power supply circuit
- Patent Title (中): 升压/降压型电源电路
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Application No.: US13781315Application Date: 2013-02-28
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Publication No.: US08928302B2Publication Date: 2015-01-06
- Inventor: Toshimasa Namekawa
- Applicant: Kabushiki Kaisha Toshiba
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Holtz, Holtz, Goodman & Chick PC
- Priority: JP2012-208855 20120921
- Main IPC: G05F1/00
- IPC: G05F1/00 ; G05F1/565 ; G05F1/573 ; G05F1/46
Abstract:
A first added signal that is acquired by adding a reference current signal that is in proportion to a current flowing through an inductance element, a slope compensation signal and a voltage difference signal that is in proportion to a difference between an input voltage and an output voltage and a second added signal that is acquired by adding the reference current signal and the slope compensation signal are compared with a difference signal of a voltage that is in proportion to the output voltage and a predetermined reference voltage, and pulse widths of driving pulse signals of a step-down switching circuit and a step-up switching circuit are controlled as a result of the comparison.
Public/Granted literature
- US20140084882A1 STEP-UP/DOWN TYPE POWER SUPPLY CIRCUIT Public/Granted day:2014-03-27
Information query
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