Patent ID: 11879327
Assignee: WUHAN CHANGSHENG MINE SECURITY TECHNOLOGY LIMITED
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 8:
9. The system of claim 7, wherein,
an anode of the first diode is connected to an emitter electrode of the first insulated gate bipolar transistor, and a cathode of the first diode is connected to a collector electrode of the first insulated gate bipolar transistor;
an anode of the second diode is connected to an emitter electrode of the second insulated gate bipolar transistor, and a cathode of the second diode is connected to a collector electrode of the second insulated gate bipolar transistor;
an anode of the third diode is connected to an emitter electrode of the third insulated gate bipolar transistor, and a cathode of the third diode is connected to a collector electrode of the third insulated gate bipolar transistor; and
an anode of the forth diode is connected to an emitter electrode of the fourth insulated gate bipolar transistor, and a cathode of the fourth diode is connected to a collector electrode of the fourth insulated gate bipolar transistor.