Title:
VOLTAGE DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/024657
Kind Code:
A1
Abstract:
A voltage detection device (30) comprises a first voltage divider circuit (40), a detection circuit (50), and an electric potential stabilization circuit (80). The first voltage divider circuit divides, at two different voltage division ratios, a voltage applied to a system and outputs the divided voltages to input terminals. The voltage division ratios in the first voltage divider circuit are set to have values that differ in a stepwise manner for respective input terminals, which are output destinations, so that input signals to be input to the input terminals are in the order corresponding to the electric potential order. Withstand voltage securing channels which are a plurality of input channels (CH4, CH5) are provided between a high potential side input terminal (V3) and a low potential side input terminal (S6). The electric potential stabilization circuit outputs, to any of input terminals included in the withstand voltage securing channels, a signal having an electric potential between the electric potential of an input signal which is input into the high potential side input terminal and the electric potential of an input signal which is input into the low potential side input terminal.
Inventors:
MIZOGUCHI TOMOMICHI (JP)
Application Number:
PCT/JP2021/024978
Publication Date:
February 03, 2022
Filing Date:
July 01, 2021
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H01M10/48; G01R19/00; G01R31/3835
Domestic Patent References:
| WO2013094214A1 | 2013-06-27 | |||
| WO2020241548A1 | 2020-12-03 |
Foreign References:
| JP2009207311A | 2009-09-10 | |||
| JP2000193694A | 2000-07-14 | |||
| JP2010523966A | 2010-07-15 | |||
| JPH0847251A | 1996-02-16 | |||
| US20130162259A1 | 2013-06-27 |
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
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