Invention Grant
US08497736B1 Direct DC coupled push-pull BJT driver for power amplifier with built-in gain and bias current signal dependent expansion
有权
具有内置增益和偏置电流信号依赖扩展功能的直流直流耦合推挽式BJT驱动器
- Patent Title: Direct DC coupled push-pull BJT driver for power amplifier with built-in gain and bias current signal dependent expansion
- Patent Title (中): 具有内置增益和偏置电流信号依赖扩展功能的直流直流耦合推挽式BJT驱动器
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Application No.: US13285605Application Date: 2011-10-31
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Publication No.: US08497736B1Publication Date: 2013-07-30
- Inventor: Dirk Leipold , Wade Allen , Gary Hau
- Applicant: Dirk Leipold , Wade Allen , Gary Hau
- Applicant Address: US NJ Warren
- Assignee: Anadigics, Inc.
- Current Assignee: Anadigics, Inc.
- Current Assignee Address: US NJ Warren
- Agent William L. Botjer
- Main IPC: H03F3/26
- IPC: H03F3/26
Abstract:
A power amplifier having a driver stage and an output stage is configured to provide an amplified RF input signal. The driver stage of the power amplifier consists of one or more driver circuits consisting of a network of transistors, current sources, capacitive elements and resistive elements. An RF input signal is fed into the driver stage which is configured to provide a dynamic DC bias and an RF signal gain to a base terminal of a Bipolar Junction Transistor (BJT) power device present in the output stage. The output stage includes of a network of transistors, capacitive and resistive elements and when driven by the DC bias and the RF signal from the driver stage produces an amplified RF input signal at an output side of the output stage.
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