Title:
ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/110312
Kind Code:
A1
Abstract:
The present invention addresses the problem regarding, when there are two or more power supplying lines leading to load circuits, the number of ports in a microcomputer for detecting an aberration in the power supplying lines needs to be increased. In the present invention, a first resistor R1 and a second resistor R2 are connected to one common end of a third resistor R3. The other end of the third resistor R3 is connected to a monitoring port of a microcomputer 15, and at the same time, is grounded via a fourth resistor R4. The microcomputer 15 assesses the voltage value of a monitoring voltage inputted to the monitoring port to determine an aberration in the first power supplying line L1 and in the second supplying line L2. More specifically, a determination is made as to whether the first power supplying line L1 or the second power supplying line L2 is short-circuited to the ground side or whether no voltage is outputted to the first power supplying line L1 or the second power supplying line L2 due to an open circuit, etc.
Inventors:
HIDA SHINICHIROU (JP)
Application Number:
PCT/JP2016/083878
Publication Date:
June 29, 2017
Filing Date:
November 16, 2016
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
G01R19/165; G01R31/50; G05F1/10
Foreign References:
| JP2002267696A | 2002-09-18 | |||
| JPH01223360A | 1989-09-06 | |||
| JP2012169715A | 2012-09-06 | |||
| JP2015222228A | 2015-12-10 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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