Title:
Power converter
Document Type and Number:
Japanese Patent JP6298069
Kind Code:
B2
Abstract:
Even in the case in which an overvoltage is generated when a vehicle is in a non-operation state, the overvoltage can be suppressed. A power conversion device 150 is connected to a three-phase motor mounted on a vehicle and includes an inverter circuit 104, a gate drive substrate 300, and a motor control substrate 200. In the motor control substrate 200, when the vehicle is in the non-operation state and a regenerative voltage applied from the three-phase motor to the inverter circuit 104 becomes equal to or more than a predetermined threshold value, a power supply circuit 204 supplies operation power to a control circuit 205. The control circuit 205 starts when the operation power is supplied from the power supply circuit 204 and outputs gate control signals to a driver circuit 304 of the gate drive substrate 300, such that regenerative energy according to the regenerative voltage is consumed between the three-phase motor and the inverter circuit 104.
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Inventors:
Kazushige Toda
Koichi Ono
Shinichiro Tobita
Koichi Ono
Shinichiro Tobita
Application Number:
JP2015540478A
Publication Date:
March 20, 2018
Filing Date:
September 29, 2014
Export Citation:
Assignee:
Hitachi Automotive Systems, Ltd.
International Classes:
H02M7/48
Domestic Patent References:
| JP2008125162A | ||||
| JP2013066326A | ||||
| JP2011223856A | ||||
| JP2013121256A | ||||
| JP2013046432A | ||||
| JP2012186871A |
Attorney, Agent or Firm:
Patent Business Corporation Sunnext International Patent Office
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