Gate driver for driving inverter
AssigneeLsis Co., Ltd.
InventorsJae-Moon Lee, Chun-Suk Yang
Life of this patent
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Abstract
The present disclosure relates to a gate driver for driving an inverter. In one embodiment, a gate driver includes an IC module configured to generate the switching signal by using a PWM signal input from the outside, and a power supply managing part configured to apply an IC module driving voltage for drive of the IC module by using a switching element and a driver driving voltage for drive of the gate driver if the driver driving voltage is equal to or larger than a first reference voltage, and is further configured to stop the application of the IC module driving voltage if the driver driving voltage is equal to or lower than a second reference voltage.
Claims3
A gate driver for generating a switching signal used to control a switching operation of an inverter, comprising:
- an IC module configured to generate the switching signal by using a PWM signal input from the outside;
- and
- a power supply managing part configured to apply an IC module driving voltage for drive of the IC module by using a switching element and a driver driving voltage for drive of the gate driver if the driver driving voltage is equal to or larger than a first reference voltage, and is further configured to stop the application of the IC module driving voltage if the driver driving voltage is equal to or lower than a second reference voltage,
- wherein the power supply managing part includes:
- an input terminal to which the driver driving voltage is applied;
- a ground terminal;
- an output terminal through which the IC module driving voltage is output;
- a first resistor;
- a second resisto;
- a Zener diode, wherein the first resistor, the second resistor and the Zener diode are connected in series between the input terminal and the ground terminal;
- a switching element having an emitter terminal connected to the input terminal, a collector terminal connected to the output terminal, and a base terminal connected to a node between the first resistor and the second resistor;
- and
- a capacitor interposed between the output terminal and the Zener diode.
Dependencies are inferred from the claim text.