Invention Grant
US07768214B2 Step-up/down regulator circuit and liquid crystal display device incorporating it
失效
升压/降压调节电路和结合其的液晶显示装置
- Patent Title: Step-up/down regulator circuit and liquid crystal display device incorporating it
- Patent Title (中): 升压/降压调节电路和结合其的液晶显示装置
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Application No.: US11816201Application Date: 2005-10-21
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Publication No.: US07768214B2Publication Date: 2010-08-03
- Inventor: Mikiya Doi , Kenichi Nakata
- Applicant: Mikiya Doi , Kenichi Nakata
- Applicant Address: JP Kyoto
- Assignee: Rohm Co., Ltd.
- Current Assignee: Rohm Co., Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Fish & Richardson P.C.
- Priority: JP2005-050070 20050225; JP2005-213738 20050725
- International Application: PCT/JP2005/019363 WO 20051021
- International Announcement: WO2006/090507 WO 20060831
- Main IPC: G05F1/00
- IPC: G05F1/00
Abstract:
A step-up/step-down regulator circuit wherein a switch has a terminal connected to an end of an inductor, another terminal grounded, and a control terminal connected to an end of a switch. In this way, performing an open/close control of the switch can indirectly perform an open/close control of the switch, thereby solving the problem that the structure and operation of a switch control circuit will be complicated when the switching between step-up and step-down operation is realized.
Public/Granted literature
- US20090009104A1 Step-Up/Down Regulator Circuit and Liquid Crystal Display Device Incorporating It Public/Granted day:2009-01-08
Information query
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