Title:
BATTERY VOLTAGE DROP SENSING DEVICE
Document Type and Number:
Japanese Patent JP2784414
Kind Code:
B2
Abstract:
PURPOSE: To provide a battery voltage drop sensing device with which the device reliability is enhanced through proper sensing of the drop of battery voltage without being influenced by the ambient temp.
CONSTITUTION: A comparing means 43 compares the battery voltage sensed by a battery voltage sensing part 42 with the reference voltage generated by a reference voltage generation part 41 to sense that the voltage has sunk below the reference. On the basis of the temp. sensed by a thermo-sensitive element, a correcting means 44a including a thermo-sensitive element Rt to sense the ambient temp. corrects the temp. so that the reference voltage is fixed to a constant level while the temp. exceeds the set value and so that sinks while the temp. is below the set value.
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Inventors:
HARADA TOSHIHIRO
Application Number:
JP20351492A
Publication Date:
August 06, 1998
Filing Date:
July 30, 1992
Export Citation:
Assignee:
YAZAKI SOGYO KK
International Classes:
G01R31/36; (IPC1-7): G01R31/36
Domestic Patent References:
| JP447670U | ||||
| JP53143679U |
Attorney, Agent or Firm:
Hideo Takino (6 outside)
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