Invention Grant
- Patent Title: Envelope tracking supply modulator with zero peaking and associated envelope tracking calibration method and system
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Application No.: US16853774Application Date: 2020-04-21
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Publication No.: US11251753B2Publication Date: 2022-02-15
- Inventor: Chen-Yen Ho , Yen-Liang Chen , Chien-Wei Kuan
- Applicant: MEDIATEK INC.
- Applicant Address: TW Hsin-Chu
- Assignee: MEDIATEK INC.
- Current Assignee: MEDIATEK INC.
- Current Assignee Address: TW Hsin-Chu
- Agency: Wolf, Greenfield & Sacks, P.C.
- Main IPC: H03F1/02
- IPC: H03F1/02 ; H04B1/40 ; H03F3/24 ; H03G3/30
Abstract:
An envelope tracking supply modulator includes an amplifier circuit and a zero peaking circuit. The amplifier circuit receives an envelope input, generates a modulated supply voltage according to the envelope input, and provides the modulated supply voltage to a power amplifier. The zero peaking circuit is coupled to the amplifier circuit, and applies zero peaking to the amplifier circuit, where the zero peaking inserts a zero at a frequency.
Information query
IPC分类:
