Patent ID: 11901887
Assignee: SUMITOMO WIRING SYSTEMS, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The switch device according to claim 1, wherein, a resistance value of the second switch between a control terminal of the second switch and a current output terminal of the second switch increases as a voltage of the control terminal of the semiconductor switch, based on a potential of the current output terminal of the semiconductor switch, decreases,
the switch device further comprises a resistor that is connected between the current input terminal and the control terminal of the second switch,
a current flows from the current input terminal to the control terminal of the second switch via the resistor while the semiconductor switch is on, and
the current flow via the resistor stops if the supply of power to the booster circuit stops.