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Biasing circuits for voltage controlled or output circuits

專利號
US10868507B2
公開日期
2020-12-15
申請人
Ronald Quan
發(fā)明人
Ronald Quan
IPC分類
H03G1/00; H03F3/45; H03F1/02; H03G3/30
技術領域
voltage,fet,q1b,amplifier,vds,drain,q1a,or,rfb,r7
地域: CA CA Cupertino

摘要

A number of biasing circuits for amplifiers including voltage controlled amplifier is presented. Also a number of field effect transistor circuits include voltage controlled attenuators or voltage controlled processing circuits. Example circuits include modulators, lower distortion variable voltage controlled resistors, sine wave to triangle wave converters, and or servo controlled biasing circuits.

說明書

In FIG. 20, U3A may require frequency compensation to avoid oscillation via a compensating capacitor (e.g., C5) coupled to the output of U3A and the (?) input of U3A. Of course other methods of frequency compensation may be provide such as coupling one or more capacitors at the gate and or drain of Q1B to provide a roll-off in frequency response that enables stable operation without oscillation in U3A.

權利要求

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