The invention provides an active discharge circuit and a power conversion device. An active discharge circuit according to one embodiment of the present invention includes: a discharge resistor connected between a first node connected to one end of a capacitor and a second node; a switch connected between the second node and ground; a drive circuit that outputs to the switch a drive voltage that turns on the switch; a processor which outputs a first enable signal; and a power supply circuit that supplies a power supply voltage to the drive circuit when the first enable signal is in the active state, and the drive circuit outputs a drive voltage to the switch when the first enable signal is in the active state and the power supply voltage is supplied from the power supply circuit.
本发明提供一种主动放电电路和电力转换装置。本发明的主动放电电路的一个方式包含:放电电阻,其连接在与电容器的一端连接的第一节点与第二节点之间;开关,其连接在第二节点与接地之间;驱动电路,其向开关输出使开关接通的驱动电压;处理器,其输出第一使能信号;以及电源供给电路,其在第一使能信号为激活状态时向驱动电路供给电源电压,驱动电路在第一使能信号为激活状态且从电源供给电路供给电源电压的情况下,对开关输出驱动电压。
Active discharge circuit and power conversion device
主动放电电路和电力转换装置
2024-11-22
Patent
Electronic Resource
Chinese
IPC: | 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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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