发明公开
EP0227323A2 Wideband feedback amplifier 失效
GegengekoppelterBreitbandverstärker。

Wideband feedback amplifier
摘要:
Current feedback is employed in differential and unbalanced input wideband feedback amplifiers to render bandwidth and transient response insensitive to closed loop gain over a wide range. In the differential amplifier, two NPN transistors (Qa, Qb) have their emitters connected by a resistor (Ra) and receive input signals (Va, Vb) at their bases. The collectors are connected to a current or voltage mirror, and gain means (A(s)) and a resistor (Rc) are connected between one of the collectors and the emitter of the transistor (Qa).
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