Title:
VOLTAGE DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/017309
Kind Code:
A1
Abstract:
The purpose of the present invention is to diagnose the state of a voltage divider while carrying out normal measurement and enhance reliability. A voltage detection device according to the present invention is provided with a first resistor for dividing the voltage of a detection unit to a first divided voltage value and a test-pattern-insertion-circuit unit comprising a second resistor for dividing the first divided voltage value to a second divided voltage value and a switching element. The test-pattern-insertion-circuit unit is connected to a connection point having the same potential as the first divided voltage value, and the state of the first resistor is detected on the basis of the second divided voltage value when the switching element conducts electricity.
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Inventors:
IGARASHI HIROAKI (JP)
KASHIHARA MASAYOSHI (JP)
HATAKEYAMA TATSUYA (JP)
YAHATA KOICHI (JP)
SAKAMOTO HIDEYUKI (JP)
KASHIHARA MASAYOSHI (JP)
HATAKEYAMA TATSUYA (JP)
YAHATA KOICHI (JP)
SAKAMOTO HIDEYUKI (JP)
Application Number:
PCT/JP2015/067388
Publication Date:
February 04, 2016
Filing Date:
June 17, 2015
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
G01R19/165; G01R31/50; H02M7/48
Domestic Patent References:
| WO2011148592A1 | 2011-12-01 |
Foreign References:
| JP2003329720A | 2003-11-19 |
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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