Title:
物理量検出回路、物理量センサー、電子機器、移動体及び物理量センサーの故障診断方法
Document Type and Number:
Japanese Patent JP7165080
Kind Code:
B2
Abstract:
A physical quantity detection circuit includes a detection signal generation circuit that generates a detection signal based on an output signal of a physical quantity detection element, an analog/digital conversion circuit that converts the detection signal into a first digital signal during a first period and converts the first test signal into a second digital signal during a second period, a digital signal processing circuit that processes the first digital signal to generate a third digital signal during the first period and processes a second test signal to generate a fourth digital signal during the second period, and a failure diagnosis circuit that performs a failure diagnosis of the analog/digital conversion circuit based on the second digital signal and a failure diagnosis of the digital signal processing circuit based on the fourth digital signal during the second period.
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Inventors:
Kinnori Nakajima
Naoki Yoshida
Naoki Yoshida
Application Number:
JP2019049607A
Publication Date:
November 02, 2022
Filing Date:
March 18, 2019
Export Citation:
Assignee:
セイコーエプソン株式会社
International Classes:
G01C19/00; G01P21/00; H03M1/10
Domestic Patent References:
| JP2018166274A | ||||
| JP7084006A | ||||
| JP2013243457A |
Attorney, Agent or Firm:
Fuse Yukio
Michie Obuchi
川▲崎▼ 通
Mitsufumi Matsumoto
Michie Obuchi
川▲崎▼ 通
Mitsufumi Matsumoto