Invention Grant
US08525580B2 Semiconductor circuit and constant voltage regulator employing same
有权
半导体电路和采用相同的恒压调节器
- Patent Title: Semiconductor circuit and constant voltage regulator employing same
- Patent Title (中): 半导体电路和采用相同的恒压调节器
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Application No.: US13173024Application Date: 2011-06-30
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Publication No.: US08525580B2Publication Date: 2013-09-03
- Inventor: Koichi Morino , Yuki Kashima , Masatoshi Ito , Shimpei Sakai
- Applicant: Koichi Morino , Yuki Kashima , Masatoshi Ito , Shimpei Sakai
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2010-160572 20100715
- Main IPC: G05F1/10
- IPC: G05F1/10
Abstract:
A semiconductor circuit includes a voltage regulator and a buffer transistor. The voltage regulator converts an input voltage input to an input terminal thereof into an output voltage output to an output terminal thereof. The buffer transistor is an n-channel depletion-mode metal-oxide semiconductor field effect transistor, disposed between the power supply terminal and the voltage regulator with a gate terminal thereof connected to the power supply terminal, a drain terminal thereof connected to the power supply terminal, and a source terminal thereof connected to the input terminal of the voltage regulator.
Public/Granted literature
- US20120013396A1 SEMICONDUCTOR CIRCUIT AND CONSTANT VOLTAGE REGULATOR EMPLOYING SAME Public/Granted day:2012-01-19
Information query
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