Patent ID: 11901818
Assignee: PSEMI CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. An integrated circuit for operating a charge pump circuit having a plurality of pump capacitors along one or more charge transfer paths, the integrated circuit comprising:
a plurality of terminals respectively coupled to the plurality of pump capacitors;
a plurality of power switches coupled to the plurality of pump capacitors via the plurality of terminals and forming a charge transfer path between an input port and an output port of the charge pump circuit; and
one or more gate driver circuits including transistors forming a tapered inverter chain for driving the plurality of power switches, wherein each of the one or more gate driver circuits receives one or more non-overlapping gate driver signals;
a level shifter circuit to shift a voltage level of an input signal before providing the input signal to the one or more gate driver circuits; and
one or more switching elements respectively coupled to the one or more gate driver circuits, wherein any of the one or more switching elements is controlled to operate in a first state or a second state to provide a supply voltage to a corresponding gate driver circuit, the supply voltage switching between different values in response to a state of the corresponding switching element.