公开(公告)号：US10855228B2

公开(公告)日：2020-12-01

申请号：US16369516

申请日：2019-03-29

Applicant: Intel Corporation

Inventor： Thomas Eichler ,  Stephan Henzler

IPC: H03G3/20 ,  H03F1/02 ,  H02M3/158 ,  H03F3/21 ,  H03F3/195

Abstract: Systems, methods, and circuitries are provided for generating supply voltages for a power amplifier in a digital envelope tracking system. In one example, a voltage generation circuitry converts a source voltage into a supply voltage based on a target voltage. The voltage regulation circuitry includes an adjustable boost circuitry that multiplies the source voltage to generate an input voltage having a voltage equal to or greater than the source voltage and a step-down regulator circuitry that regulates the input voltage to generate a regulated output voltage having a voltage that is less than or equal to the input voltage. A voltage splitter circuitry is coupled to the regulated output voltage and is configured to generate at least one derived output voltage from the regulated output voltage. A supply modulator provides a selected one of the at least one derived output voltage to a power amplifier.

公开(公告)号：US20200313622A1

公开(公告)日：2020-10-01

申请号：US16369516

申请日：2019-03-29

Applicant: Intel Corporation

Inventor： Thomas Eichler ,  Stephan Henzler

IPC: H03F1/02 ,  H03F3/195 ,  H03F3/21 ,  H02M3/158

Abstract: Systems, methods, and circuitries are provided for generating supply voltages for a power amplifier in a digital envelope tracking system. In one example, a voltage generation circuitry converts a source voltage into a supply voltage based on a target voltage. The voltage regulation circuitry includes an adjustable boost circuitry that multiplies the source voltage to generate an input voltage having a voltage equal to or greater than the source voltage and a step-down regulator circuitry that regulates the input voltage to generate a regulated output voltage having a voltage that is less than or equal to the input voltage. A voltage splitter circuitry is coupled to the regulated output voltage and is configured to generate at least one derived output voltage from the regulated output voltage. A supply modulator provides a selected one of the at least one derived output voltage to a power amplifier.