Title:
サブバッテリ制御回路
Document Type and Number:
Japanese Patent JP4412856
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a sub-battery control circuit stopping power supply from a sub-battery to on-vehicle equipment and preventing the consumption of the current of the sub-battery in the case that main power source voltage remarkably lowers or in the case that power supply from a vehicle battery does not exist. SOLUTION: The sub-battery control device 1 is provided with a main power source part 101 having the vehicle battery 2 and supplying power from the vehicle battery 2 to the on-vehicle equipment 3, an auxiliary power source part 102 having the sub-battery 4, compensating the voltage drop of the main power source voltage from the main power source part 101 by the sub-battery 4 when the main power source voltage from the main power source part 101 is lowered to first voltage, and a control part 103 stopping power supply from the sub-battery 4 when the main power source voltage from the main power source part 101 is second voltage or less lower than the first voltage even under the operation condition of the auxiliary power source part 102.
Inventors:
Enami Ichizo
Application Number:
JP2001020164A
Publication Date:
February 10, 2010
Filing Date:
January 29, 2001
Export Citation:
Assignee:
Clarion Co., Ltd.
International Classes:
B60R16/033; H02J9/06; B60R16/02; H01M10/44; H02J7/00; H02J7/34
Domestic Patent References:
| JP7232605A | ||||
| JP5049519U | ||||
| JP60118030A | ||||
| JP2073417A | ||||
| JP6027369U |
Attorney, Agent or Firm:
Masayuki Kushibuchi
Kushibuchi Kazue
Kushibuchi Kazue