Invention Grant
- Patent Title: Monitor circuit, semiconductor integrated circuit, semiconductor device, and method of controlling power supply voltage of semiconductor device
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Application No.: US14851592Application Date: 2015-09-11
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Publication No.: US09647654B2Publication Date: 2017-05-09
- Inventor: Tadashi Kameyama , Takanobu Naruse , Yohei Akita , Hirotaka Hara
- Applicant: Renesas Electronics Corporation
- Applicant Address: JP Tokyo
- Assignee: Renesas Electronics Corporation
- Current Assignee: Renesas Electronics Corporation
- Current Assignee Address: JP Tokyo
- Agency: Shapiro, Gabor and Rosenberger, PLLC
- Priority: JP2013-015269 20130130
- Main IPC: G05F1/10
- IPC: G05F1/10 ; G05F3/02 ; H03K5/24 ; G01R19/165 ; G06F1/28 ; G06F1/26 ; G01R19/32
Abstract:
A monitor circuit includes a reference voltage generating unit that generates first and second reference voltages, a first amplifier unit that amplifies a differential voltage between the first reference voltage and the second reference voltage, a second amplifier unit that amplifies a differential voltage between an internal power supply voltage being supplied to a functional block provided in the semiconductor integrated circuit and the first reference voltage, and a comparator unit that compares an amplification result of the first amplifier unit with an amplification result of the second amplifier unit and outputs a comparison result as a measurement result.
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Information query
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