Patent ID: 11894767
Assignee: QORVO US, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A power management circuit comprising:
a plurality of voltage outputs each outputting a respective one of a plurality of time-variant voltages to a respective one of a plurality of power amplifiers for amplifying a respective one of a plurality of signals;
a voltage circuit configured to generate a first reference voltage and a second reference voltage based on a battery voltage;
a first voltage driver circuit coupled between the voltage circuit and the plurality of voltage outputs and configured to generate the plurality of time-variant voltages based on the first reference voltage;
a second voltage driver circuit coupled between the voltage circuit and the plurality of voltage outputs and configured to generate the plurality of time-variant voltages based on the second reference voltage; and
a control circuit configured to cause the first voltage driver circuit to maintain the plurality of time-variant voltages at a non-zero standby voltage level in response to determining that each of the plurality of power amplifiers is inactive.