Component useful as a circuit breaker for an inverter, comprises a MOSFET having a gate terminal and a source terminal, a first diode for measuring a junction temperature of the MOSFET, and a second diode and/or a third diode

摘要

The component comprises a MOSFET (311) having a gate terminal (309) and a source terminal (305), a first diode (304) for measuring a junction temperature of the MOSFET, and a second diode and/or a third diode and/or a fourth diode and/or diodes connected in series. The first diode includes an anode terminal and a cathode terminal, and is in thermal contact with a barrier layer of the MOSFET and designed as a silicon diode, a suppressor diode, a Schottky diode, a PIN diode or a zener diode. The MOSFET is of an N-channel type, where the gate terminal is connected to the cathode terminal. The component comprises a MOSFET (311) having a gate terminal (309) and a source terminal (305), a first diode (304) for measuring a junction temperature of the MOSFET, and a second diode and/or a third diode and/or a fourth diode and/or diodes connected in series. The first diode includes an anode terminal and a cathode terminal, and is in thermal contact with a barrier layer of the MOSFET and designed as a silicon diode, a suppressor diode, a Schottky diode, a PIN diode or a zener diode. The MOSFET is of an N-channel type, where the gate terminal is connected to the cathode terminal and the source terminal is connected to the anode terminal or the MOSFET is of a P-channel type, where the gate terminal is connected to the anode terminal and the source terminal is connected to the cathode terminal. Independent claims are included for: (1) a power steering for a motor vehicle; (2) a steering system; and (3) a method for junction temperature measurement.