voltage follower
Source: InternetPublisher:清宁时光 Keywords: Voltage follower emitter dual power supply Updated: 2020/08/22
Shown is a voltage follower , which uses a double emitter follower circuit and is mainly used in voltage output circuits. The signal
is input from the base of VT1 and is directly coupled to VT2 by its emitter . VT2 also has the structure of an emitter output device, and the signal is output by the emitter . VT3 is connected
as a constant current source, and the circuit is powered by dual power supplies to meet the requirements of DC operation, and can obtain high input impedance and low output impedance.
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