Patent ID: 11888414
Assignee: SILERGY SEMICONDUCTOR TECHNOLOGY (HANGZHOU) LTD
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A driving circuit for driving a piezoelectric load, comprising:
a power stage circuit configured to receive an input voltage, and generate an output voltage at an output port of the power stage circuit; and
a full-bridge circuit coupled to the output port of the power stage circuit, and configured to perform charging and discharging on the piezoelectric load coupled to an output port of the full-bridge circuit,
wherein an operating mode of the full-bridge circuit is controlled, so that a supply voltage signal generated by the full-bridge circuit for driving the piezoelectric load during a first operating interval of an operating cycle corresponds to a reference voltage in a first interval, and the supply voltage signal generated during a second operating interval of the operating cycle corresponds to the reference voltage in a second interval, wherein the reference voltage in the first interval is a rising part of the reference voltage in a cycle, and the reference voltage in the second interval is a falling part of the reference voltage in the cycle.