发明名称 |
Transistor amplifier that accommodates large input signals |
摘要 |
This invention relates to a gain stage of a differential amplifier used in an intermediate frequency, voltage gain amplifier to producing a substantially linear, differential output signal for both small and large differential input signals. The invention comprises a gain regulation means in parallel with a pair of transistors forming a differential amplifier. Each transistor of the pair is connected to a first terminal of a power source through a separate impedance element. A current source connects the pair of transistors to a second terminal of the power source. The gain regulation means is connected between the first terminal of the power source and the current source such that it may develop a voltage potential between the first terminal of the power supply and the current source that varies linearly in response to an input signal.
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申请公布号 |
US6404285(B1) |
申请公布日期 |
2002.06.11 |
申请号 |
US20000670588 |
申请日期 |
2000.09.29 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
SHKAP DANIEL |
分类号 |
H03F1/32;H03F3/45;H03G1/00;(IPC1-7):H03F3/45 |
主分类号 |
H03F1/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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