Driver circuit for controlling P-channel MOSFET, and control device comprising same

A driver circuit for controlling a P-channel Metal Oxide Semiconductor Field Effect transistor (MOSFET) including a gate terminal, a source terminal connected to a power supply, and a drain terminal connected to an electrical load, the driver circuit comprising:

• a first voltage divider including at least a first dividing resistor, one end of the first voltage divider being connected to the source terminal of the P-channel MOSFET;
• a first sub-transistor including a first collector terminal, a first emitter terminal and a first base terminal, the first collector terminal being connected to an other end of the first voltage divider, the first base terminal configured to be connected to a controller, and the first emitter terminal being connected to a ground,
• wherein the first sub-transistor is configured to be turned on by a control signal from the controller;
• a second sub-transistor including a second collector terminal, a second emitter terminal and a second base terminal, the second emitter terminal being connected to the gate terminal of the P-channel MOSFET, and the second base terminal being connected to a first connection node;
• a third sub-transistor including a third collector terminal, a third emitter terminal and a third base terminal, the third emitter terminal being connected to the second emitter terminal, and the third collector terminal being connected to the ground;
• and
• a first resistor connected between the second collector terminal and the second emitter terminal.