Invention Grant
- Patent Title: Envelope tracking power management apparatus incorporating multiple power amplifiers
-
Application No.: US17142507Application Date: 2021-01-06
-
Publication No.: US11677365B2Publication Date: 2023-06-13
- Inventor: Nadim Khlat
- Applicant: Qorvo US, Inc.
- Applicant Address: US NC Greensboro
- Assignee: Qorvo US, Inc.
- Current Assignee: Qorvo US, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: H03F3/04
- IPC: H03F3/04 ; H03F1/02 ; H03F3/24 ; H03F3/189 ; H03F1/56

Abstract:
An envelope tracking (ET) power management apparatus incorporating multiple power amplifiers is provided. The ET power management apparatus includes a single ET integrated circuit (ETIC) configured to provide multiple ET voltages to the multiple power amplifiers for amplifying a radio frequency (RF) signal concurrently. The ETIC includes multiple first ET voltage circuits configured to generate multiple first ET voltages and a second ET voltage circuit configured to generate a second ET voltage. The ETIC is configured to provide each of the first ET voltages to an output stage amplifier(s) in a respective one of the power amplifiers and provide the second ET voltage to a driver stage amplifier in all of the power amplifiers. By supporting the multiple power amplifiers using a single ETIC, it is possible to reduce footprint, power consumption, and heat dissipation in an electronic device employing the ET power management apparatus.
Public/Granted literature
- US20210211108A1 ENVELOPE TRACKING POWER MANAGEMENT APPARATUS INCORPORATING MULTIPLE POWER AMPLIFIERS Public/Granted day:2021-07-08
Information query