Title:
負荷駆動回路
Document Type and Number:
Japanese Patent JP3610878
Kind Code:
B2
Abstract:
A load drive apparatus for an electric load has a plurality of switching circuits (IPD-A, IPD-B) having respective power MOS transistors (201, 301) and connected in parallel with each other to drive an electric load (159). The switching circuits have INH input/output terminals(202, 302) for driving ON/OFF of the power MOS transistors. When a high voltage detecting unit (209) detects that a power-source voltage is high, the high voltage detecting unit outputs a high level to turn off the power MOS transistors. The MOS transistor of one switching circuits turns on and the voltage of the INH input/output terminal of the same switching circuit becomes low. Thereby, the INH input/output terminal of another switching circuits becomes low to turn off simultaneously the power MOS transistor of another switching circuit.
Inventors:
Hiroshi Hattori
Hideki Sone
Hideki Sone
Application Number:
JP2000130807A
Publication Date:
January 19, 2005
Filing Date:
April 28, 2000
Export Citation:
Assignee:
株式会社デンソー
International Classes:
B60R16/02; B60T8/1761; B60T8/96; G05F1/10; H02H7/20; H02M1/08; H03K17/082; H03K17/12; H03K17/687; H03K17/08; (IPC1-7): H03K17/12; B60R16/02; G05F1/10; H02H7/20; H02M1/08; H03K17/687
Domestic Patent References:
| JP2219421A | ||||
| JP61098018A | ||||
| JP6283987A | ||||
| JP5299991A | ||||
| JP5259854A |
Attorney, Agent or Firm:
Yoji Ito
Takahiro Miura
Fumihiro Mizuno
Takahiro Miura
Fumihiro Mizuno