Title:
RELAY ADHESION PREVENTING DEVICE AND MOTOR DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2005/081386
Kind Code:
A1
Abstract:
When failure of a booster circuit (53) is detected while monitoring the boost voltage outputted by the booster circuit (53), supply of power source voltage to the booster circuit (53) is stopped so that motor relays (55, 56) are turned off when the boost voltage outputted from the booster circuit (53) is below a predetermined threshold value. Thus, it is possible to prevent generation of arc when the contacts of the motor relays (55, 56) are disconnected and adhesion of the motor relays (55, 56).
Inventors:
ONO HIROAKI (JP)
Application Number:
PCT/JP2005/002571
Publication Date:
September 01, 2005
Filing Date:
February 18, 2005
Export Citation:
Assignee:
DENSO CORP (JP)
ONO HIROAKI (JP)
ONO HIROAKI (JP)
International Classes:
B62D5/04; H02M1/00; (IPC1-7): H02M3/155; B62D5/04; H02P7/63
Foreign References:
| JP2003089360A | 2003-03-25 | |||
| JPH02283568A | 1990-11-21 |
Attorney, Agent or Firm:
Yahagi, Kazuyuki (Takisada Bldg. 2-13-19, Nishiki, Naka-k, Nagoya-city Aichi 03, JP)
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