The present invention is a switching element driving circuit (8) provided with: a determination power supply unit (3) that turns on a connected switching element (2) the drive type of which is unknown, by applying voltage of a set voltage value to the input terminal (IPT) of the switching element; a voltage measurement determination unit (4) that measures the voltage value (Vin) at the input terminal of the switching element in the on state, and determines that the drive type is a voltage drive type (2B) when the measured voltage value is equal to or greater than a reference voltage value (Vref), and determines that the drive type is a current drive type (2A) when the measured voltage value is less than the reference voltage value; a driving voltage generation unit (15) that applies, to the input terminal of the switching element, drive voltage in accordance with the result of determination by the voltage measurement determination unit; and a switch (SW1) that switchingly connects, tothe input terminal of the switching element, the determination power supply unit and voltage measurement determination unit, and the driving voltage generation unit.
本发明是一种开关元件的驱动电路(8),其具备:判定用电源部(3),其对所连接的驱动类型未知的开关元件(2)的输入端子(IPT)施加所设定的电压值的电压,使所述开关元件导通;电压测定判定部(4),其测定导通状态的所述开关元件的输入端子的电压值(Vin),如果在基准电压值(Vref)以上,则判定为电压驱动型(2B),如果低于所述基准电压值,则判定为电流驱动型(2A);驱动电压生成部(15),其对所述开关元件的输入端子施加与所述电压测定判定部的判定结果相符的电压的驱动电压;以及切换开关(SW1),其切换地将所述判定用电源部和电压测定判定部连接到所述开关元件的输入端子、或者将所述驱动电压生成部连接到所述开关元件的输入端子。
Switching element driving circuit, power conversion device, elevator apparatus, and switching element driving method
开关元件的驱动电路、电力变换装置、电梯装置以及开关元件的驱动方法
2020-05-08
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 / B66B Aufzüge , ELEVATORS / H03K PULSE TECHNIQUE , Impulstechnik |
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