发明名称 |
Differential amplifier having externally controllable power consumption |
摘要 |
A differential amplifier having externally controllable power consumption. Differential amplifiers have a "static-bias" stage for setting the quiescent currents that flow in parallel circuit branches. Two field effect transistors that are connected parallel to one another are in series with an output resistor of this stage, these field effect transistors being driven via a level-converting circuit given the appearance of an input signal to be amplified, such that a voltage boost occurs at the output resistor. This voltage boost leads to a current boost in the differential amplifier. Good driver properties, a distortion-free signal transmission and a low dissipated power are provided by this external control of the two field effect transistors that results from the amplifier inputs.
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申请公布号 |
US4956613(A) |
申请公布日期 |
1990.09.11 |
申请号 |
US19890367268 |
申请日期 |
1989.06.16 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
HOSTICKA, BEDRICH;KLINKE, ROLAND;PFLEIDERER, HANS-JOERG |
分类号 |
H03F3/45;H03F1/02;H03F3/72 |
主分类号 |
H03F3/45 |
代理机构 |
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代理人 |
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地址 |
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