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

Claim 15:
16. A driving method applicable to a driving circuit, wherein the driving circuit comprises:
a power stage circuit for receiving an input voltage, and generating an output voltage at an output port of the power stage circuit; and
a full-bridge circuit coupled to the output end of the power stage circuit and for performing charging and discharging on a piezoelectric load coupled to an output port of the full-bridge circuit;
and wherein the driving method comprises:
controlling an operating mode of the full-bridge circuit to control:
a supply voltage signal generated by the full-bridge circuit for driving the piezoelectric load during a first operating interval of an operating cycle to correspond to a reference voltage in a first interval; and
the supply voltage signal generated during a second operating interval of the operating cycle to correspond to the reference in a second interval; and
during the first or the second operating interval, controlling first to fourth power switches in the full-bridge circuit to operate in one of a turn-off state and a linear mode, so that the supply voltage signal corresponds to the reference voltage.