1results about How to "Realize differentiated control" patented technology

This invention discloses an IGBT control circuit, method, PCB board, and controller, including a main control unit, a driving resistor unit, a resistor adjustment unit, an IGBT transistor U1, and a voltage sampling unit. The driving terminal of the main control unit is connected to one end of the driving resistor unit, the other end of the driving resistor unit is connected to the resistor adjustment unit, the other end of the resistor adjustment unit is connected to the gate of the IGBT transistor U1, the emitter of the IGBT transistor U1 is grounded, the collector of the IGBT transistor U1 is connected to the input terminal of the voltage sampling unit, the output terminal of the voltage sampling unit is connected to the input terminal of the main control unit, and the feedback control terminal of the main control unit is connected to the resistor adjustment unit. The main control unit controls the operating state of the resistor adjustment unit connected to the driving resistor unit according to the feedback signal from the voltage sampling unit; it adaptively adjusts according to the actual operating state of the IGBT to improve voltage overshoot and current spike problems during switching.