Invention Grant
- Patent Title: Level shift circuit
- Patent Title (中): 电平移位电路
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Application No.: US12926500Application Date: 2010-11-23
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Publication No.: US08351235B2Publication Date: 2013-01-08
- Inventor: Masashi Akahane
- Applicant: Masashi Akahane
- Applicant Address: JP Kawasaki-Shi
- Assignee: Fuji Electric Co., Ltd.
- Current Assignee: Fuji Electric Co., Ltd.
- Current Assignee Address: JP Kawasaki-Shi
- Agent Manabu Kanesaka
- Priority: JP2009-276806 20091204; JP2010-143826 20100624
- Main IPC: G11C19/00
- IPC: G11C19/00

Abstract:
A feedback circuit by which an output of a memory device for storing level-shifted data can be fed back to the input side includes inverters, resistors, and transistors. The resistance value of combined resistance for pulling up or down first and second switching devices is varied in accordance with the output of the memory device by the feedback circuit, so that malfunction caused by dv/dt noise can be dealt with out generating any through current. In this manner, it is possible to provide a level shift circuit which can deal with malfunction causing dv/dt noise regardless of an on or off state of a high-potential-side switching device, while generation of a through current can be suppressed.
Public/Granted literature
- US20110134710A1 Level shift circuit Public/Granted day:2011-06-09
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