• 专利标题: ANGULAR VELOCITY DETECTION CIRCUIT, ANGULAR VELOCITY DETECTION DEVICE, ELECTRONIC APPARATUS, AND MOVING OBJECT
  • 申请号: US15440466
    申请日: 2017-02-23
  • 公开(公告)号: US20170254645A1
    公开(公告)日: 2017-09-07
  • 发明人: Kei KANEMOTO
  • 申请人: Seiko Epson Corporation
  • 优先权: JP2016-042346 20160304
  • 主分类号: G01C19/5776
  • IPC分类号: G01C19/5776 G01C19/5712
ANGULAR VELOCITY DETECTION CIRCUIT, ANGULAR VELOCITY DETECTION DEVICE, ELECTRONIC APPARATUS, AND MOVING OBJECT
摘要:
An angular velocity detection circuit includes: a first conversion unit that includes a first operational amplifier, and converts a first detection signal, which is output from a first detection electrode and is input to a first input terminal of the first operational amplifier, into a voltage; an angular velocity signal generation unit that generates an angular velocity signal on the basis of an output signal of the first conversion unit; and a first correction signal generation unit that generates a first correction signal for reducing an offset of the angular velocity signal which occurs due to a leakage signal included in the first detection signal on the basis of a signal based on drive oscillation of the angular velocity detection element. The first correction signal is input to the first input terminal or a second input terminal of the first operational amplifier directly or through a resistor.
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