emitterstrømtilførsel
emitterstrømtilførsel refers to the method by which current is supplied to the emitter terminal of a bipolar junction transistor (BJT). This is a fundamental aspect of transistor biasing, which determines the operating point and thus the transistor's behavior in a circuit. The emitter current (Ie) is crucial as it is directly related to the collector current (Ic) and base current (Ib) by the equation Ie = Ic + Ib.
Various circuit configurations are used to provide emitterstrømtilførsel, each with its own advantages and disadvantages in
In common emitter amplifier configurations, a resistor in the emitter leg (RE) is frequently used for emitterstrømtilførsel.
Alternatively, a more stable and precise emitter current can be achieved using an active current source. This