Invention Grant
- Patent Title: Amplifier circuit having controllable output stage
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Application No.: US16121644Application Date: 2018-09-05
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Publication No.: US10555269B2Publication Date: 2020-02-04
- Inventor: Sung-Han Wen , Ya-Chi Chen
- Applicant: MEDIATEK INC.
- Applicant Address: TW Hsin-Chu
- Assignee: MEDIATEK INC.
- Current Assignee: MEDIATEK INC.
- Current Assignee Address: TW Hsin-Chu
- Agent Winston Hsu
- Main IPC: H04W52/52
- IPC: H04W52/52 ; H03F1/02 ; H03F3/217 ; H03F1/32

Abstract:
The present invention provides an amplifier circuit, wherein the amplifier circuit includes a DAC, an output stage and a detector. In the operations of the amplifier circuit, the DAC is arranged for performing a digital-to-analog converting operation upon a digital input signal to generate an analog signal, the output stage is arranged for receiving the analog signal to generate an output signal, and the detector is arranged for detecting a characteristic of the input signal, and referring to the characteristic of the input signal to generate at least one control signal to adjust the output stage at a zero-crossing point of the output signal.
Public/Granted literature
- US20190166566A1 AMPLIFIER CIRCUIT HAVING CONTROLLABLE OUTPUT STAGE Public/Granted day:2019-05-30
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