Title:
ABNORMALITY DETECTOR
Document Type and Number:
Japanese Patent JP2019052963
Kind Code:
A
Abstract:
To provide an abnormality detector with which it is possible to suppress an increase in device size.SOLUTION: A bridge circuit 10 is composed by including a resistor R1, a resistor R2, a load part R3 as a third resistor, a resistor 4, and a resistor R5. A voltage supply unit 20 applies a voltage V to the bridge circuit 10. In the bridge circuit 10 is formed a series circuit 11 in which the resistor R1 and the resistor R2 are connected in series and the resistor R2 and the resistor R4 are connected in series. Meanwhile, in the bridge circuit 10, the series circuit 11 and the load part R3 are connected in parallel, one end of the resistor R5 is connected between the resistor R2 and the resistor R4, and the other end of the resistor 5 is connected between the resistor R1 and the load part R3. Further, in the bridge circuit 10, the voltage supply unit 20 is connected between the resistor R1 and the resistor R2. A control unit 40 detects the abnormality of the load part R3 on the basis of the detection voltage of the bridge circuit 10 that is detected by applying a voltage V from the voltage supply unit 20 while a switch 3 is turned off.SELECTED DRAWING: Figure 1
Inventors:
MORIMOTO MITSUAKI
OISHI EIICHIRO
OISHI EIICHIRO
Application Number:
JP2017177802A
Publication Date:
April 04, 2019
Filing Date:
September 15, 2017
Export Citation:
Assignee:
YAZAKI CORP
International Classes:
G01R31/02
Domestic Patent References:
| JPH05196677A | 1993-08-06 | |||
| JPH06222099A | 1994-08-12 | |||
| JP2007168715A | 2007-07-05 | |||
| JP2007060762A | 2007-03-08 |
Attorney, Agent or Firm:
Toranomon Intellectual Property Office