![]() Acts as a switch: By controlling the current of the Base-Emitter terminal. The other two are the Common BaseĪnd Common Collector circuit configurations. BJT is one type of transistor, with 3 terminals: Base, Collector, and Emitter. The Common Emitter BJT Amplifier is one of three single BJT circuit configurations. Voltage amplifier involves the AC analysis of the circuit. When a small signal source is connected to the base of the transistor instead of a on/off DC source, the circuit is aĬommon emitter amplifier. When a high current amplification is required, a darlington Output voltage when the transistor is switched off. When an inductive load is connected to the collector, a recirculation diode is required across the load to damp the In this operation the collector current I C is determined using In a real transistor V CE never reaches 0, instead it saturates at around 0.1V.To reduce this base current is to use a Darlington transistor. ![]() Need a sufficiently large base current to operate the BJT as a switch (observe the problem when R1=10K). If you have a small load (R2=100 ohm), you will After that current can flow between collector and emitter terminals.
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