DISCONNECTION SENSING CIRCUIT FOR PRESSURE DETECTION DEVICE

Title:

DISCONNECTION SENSING CIRCUIT FOR PRESSURE DETECTION DEVICE

Document Type and Number:

WIPO Patent Application WO/2015/147062

Kind Code:

A1

Abstract:

　This circuit is provided with a pull-up resistor (103) through which a signal line (113c) that is presented with a detection signal (Dd) and that is connected to a wiring cable (12) is connected to a power supply (power supply voltage) (Vdd), or with a pull-down resistor through which the signal line (113c) is connected to GND; and is additionally provided with voltage clipper circuits (105) (105a … ) having a high-voltage clipper circuit (105au … ) for connecting the signal line (113c) to the power supply (Vdd) and clipping the voltage on the signal line (113c) to a maximum prescribed voltage (Vdm), and a low-voltage clipper circuit (105ad … ) for connecting the signal line (113c) and GND and clipping the voltage on the signal line (113c) to a minimum prescribed voltage (Vds).

Inventors:

NAKAMURA RIKOKU (JP)
YOMOYAMA MASANORI (JP)
AIBA TETSUYA (JP)
KANAMORI YUTA (JP)

Application Number:

PCT/JP2015/059138

Publication Date:

October 01, 2015

Filing Date:

March 25, 2015

Export Citation:

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Assignee:

CITIZEN FINETECH MIYOTA CO LTD (JP)
CITIZEN HOLDINGS CO LTD (JP)

International Classes:

G01L19/12; G01L9/00; G01R31/02; G08C25/00

Foreign References:

JPH05321747A	1993-12-07
JPH0257075U	1990-04-25
JPH05235676A	1993-09-10

Other References: