A power supply circuit (41) includes a first P-channel MOSFET (PMOS 1) and a first voltage application circuit (71). The first P-channel MOSFET (PMOS 1) is provided between an on-board power supply (50) and a vehicular apparatus that is a power supply target, and is configured to switch a power-ON state in which electric power is supplied to the vehicular apparatus and a power-OFF state in which the supply of the electric power is interrupted. The first voltage application circuit (71) is configured to apply a voltage having a potential lower than a potential of the on-board power supply (50) to a gate terminal such that a state of the first P-channel MOSFET (PMOS 1) is switched to the power-ON state, and apply a voltage having a potential equal to the potential of the on-board power supply (50) to the gate terminal such that the state of the first P-channel MOSFET (PMOS 1) is switched to the power-OFF state.


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    Title :

    POWER SUPPLY CIRCUIT AND POWER SUPPLY APPARATUS


    Additional title:

    STROMVERSORGUNGSSCHALTUNG UND STROMQUELLENVORRICHTUNG
    CIRCUIT ET APPAREIL D'ALIMENTATION ÉLECTRIQUE


    Contributors:

    Publication date :

    2024-09-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H03K PULSE TECHNIQUE , Impulstechnik / B62D MOTOR VEHICLES , Motorfahrzeuge / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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