An object is to prevent the motor from carrying out a regeneration braking operation even if any of phase output lines is short-circuited to VB or GND in addition to a short-circuit failure occurring in a MOSFET of an inverter. The semiconductor switching devices of a power conversion apparatus each have a diode that is coupled in parallel to each of the semiconductor switching devices. At least one of the diodes are connected in a direction opposite to the direction in which other diodes are oriented on a current path between the power supply and the ground. Further, at least one of diodes is connected in a direction opposite to the direction in which other diodes are oriented on a current path between the output of the motor and the power supply and on a current path between the output of the motor and the ground.
Power conversion apparatus, electronic steering system, electric vehicle, electronic control throttle and power brake
2016-11-08
Patent
Electronic Resource
English
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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