Invention Application
- Patent Title: AMPLIFICATION CIRCUIT WITH COMPENSATION FOR COMMON-MODE VOLTAGE FLUCTUATION
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Application No.: US17542675Application Date: 2021-12-06
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Publication No.: US20220255516A1Publication Date: 2022-08-11
- Inventor: Yu-Hsin LIN , Fong-Wen LEE , Wen-Chieh WANG
- Applicant: MEDIATEK INC.
- Applicant Address: TW Hsinchu City
- Assignee: MEDIATEK INC.
- Current Assignee: MEDIATEK INC.
- Current Assignee Address: TW Hsinchu City
- Main IPC: H03F3/45
- IPC: H03F3/45

Abstract:
An amplification circuit with a common-mode voltage compensation circuit is shown. The common-mode voltage compensation circuit has a first compensation resistor coupled between an input terminal of a loop filter of the amplification circuit and a control node, and a second compensation resistor coupled between another input terminal of the loop filter and the control node. The control node is coupled to a power ground voltage when the two output signals of the amplification circuit are high, and it is coupled to a power supply voltage when the two output signals of the amplification circuit are low.
Information query