Patent ID: 11936341
Assignee: QORVO US, INC.
Field: nan (nan)
Classification: CPC nan | IPC H

Claim 0:
1. Envelope tracking power supply circuitry comprising:
a power envelope input;
an envelope tracking power supply output;
a look up table (LUT) coupled to the power envelope input and configured to receive a power envelope measurement, which is a measurement of a power envelope of a radio frequency (RF) signal, from the power envelope input and provide a target supply voltage based on the power envelope measurement;
envelope synchronization circuitry coupled to the LUT and configured to:
receive the target supply voltage from the LUT and a delay measurement, where the delay measurement indicates an amount of delay between the power envelope of the RF signal and an envelope tracking supply voltage provided at the envelope tracking power supply output; and
adjust the target supply voltage based on the delay measurement to provide an adjusted target supply voltage such that the adjusted target supply voltage is synchronized with the power envelope of the RF signal; and

envelope tracking modulator circuitry coupled to the envelope synchronization circuitry and the envelope power supply output and configured to receive the adjusted target supply voltage and provide the envelope tracking supply voltage based on the adjusted target supply voltage to the envelope tracking power supply output.