Title:
ABNORMALITY DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/053952
Kind Code:
A1
Abstract:
In a bridge circuit (10), a series circuit (11) is formed in such a manner that a resistor (R1) and a resistor (R2) are connected in series, and a resistor (R2) and a resistor (R4) are connected in series. In the bridge circuit (10), the series circuit (11) and a load section (R3) are connected in parallel, one end of a resistor (R5) is connected to a point between the resistor (R2) and the resistor (R4), and the other end of the resistor (R5) is connected to a point between the resistor (R1) and the load section (R3). In the bridge circuit (10), a voltage supply (20) is connected to a point between the resistor (R1) and the resistor (R2). A control unit (40) detects an abnormality in the load section (R3) on the basis of the detected voltage across the bridge circuit (10) detected by applying a voltage (V) from the voltage supply (20) while a switch (3) is off. This structure enables an abnormality detection device (1) to detect an abnormality while limiting the increase in size of the device.
Inventors:
MORIMOTO MITSUAKI (JP)
OISHI EIICHIRO (JP)
OISHI EIICHIRO (JP)
Application Number:
PCT/JP2018/019649
Publication Date:
March 21, 2019
Filing Date:
May 22, 2018
Export Citation:
Assignee:
YAZAKI CORP (JP)
International Classes:
G01R31/02
Foreign References:
| JPH05196677A | 1993-08-06 | |||
| JPH06222099A | 1994-08-12 | |||
| JP2007168715A | 2007-07-05 |
Attorney, Agent or Firm:
TORANOMON INTELLECTUAL PROPERTY FIRM (JP)
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