Invention Grant
- Patent Title: Small-circuit-scale reference voltage generating circuit
- Patent Title (中): 小电路规模的基准电压发生电路
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Application No.: US14072633Application Date: 2013-11-05
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Publication No.: US09285822B2Publication Date: 2016-03-15
- Inventor: Mitsuya Fukazawa , Kenji Furusawa
- Applicant: Renesas Electronics Corporation
- Applicant Address: JP Kawasaki-shi, Kanagawa
- Assignee: Renesas Electronics Corporation
- Current Assignee: Renesas Electronics Corporation
- Current Assignee Address: JP Kawasaki-shi, Kanagawa
- Agency: McGinn IP Law Group, PLLC
- Priority: JP2012-249484 20121113
- Main IPC: G05F3/30
- IPC: G05F3/30 ; G05F3/20

Abstract:
A BGR circuit controls a switch circuit in synchronization with a clock signal from a control signal generating circuit and an inverted signal thereof, and thereby, alternately switches between a differential input terminal receiving a voltage VIM and a differential input terminal receiving a voltage VIP. An LPF circuit includes capacitive elements, a switch connected between an input node and each capacitive element, and a switch connected between an output node and each capacitive element. The LPF circuit controls ON/OFF of the switches in synchronization with a clock signal CLK, and thereby, calculates a moving average value of an output voltage of the BGR circuit in the most recent one clock cycle.
Public/Granted literature
- US20140132241A1 SMALL-CIRCUIT-SCALE REFERENCE VOLTAGE GENERATING CIRCUIT Public/Granted day:2014-05-15
Information query
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