Patent ID: 9584109
Date: 2017-02-28
CPC Classifications: H02M,H03K,Y02B

Claim:
1. A resonant gate driver of a voltage regulator configured to drive a first power transistor and a second power transistor, wherein the resonant gate driver comprises a first control gateway, a second control gateway, and an inductor, wherein: a first end of the first control gateway is connected to a first end of the second control gateway; a second end of the first control gateway is connected to a second end of the second control gateway via the inductor; and a third end of the first control gateway is connected to the first power transistor, and a third end of the second control gateway is connected to the second power transistor; wherein the first end of the first control gateway and the first end of the second control gateway are connected to a modulation circuit of the voltage regulator, the modulation circuit being connected to a control circuit of the voltage regulator; wherein the modulation circuit and the control circuit are configured to control an intensity of a current passing through the first control gateway and the second control gateway to control a time ratio of connection and disconnection of the first power transistor and the second power transistor, so as to perform pulse modulation on an input voltage of the voltage regulator to keep an output voltage of the voltage regulator stable.