In Figure, the base resistor RB is connected to the collector rather than to VCC, as it was in the base…
If an emitter resistor is added to the base-bias circuit, the result is emitter-feedback bias, as shown in Figure. The…
This method of biasing is common in switching circuits. Figure shows a base-biased transistor. The analysis of this circuit for the…
Emitter bias provides excellent bias stability in spite of changes in β or temperature. It uses both a positive and a…
A method of biasing a transistor for linear operation using a single-source resistive voltage divider. This is the most widely used…
Several faults that can occur in the circuit and the accompanying symptoms are illustrated in Below Figure. Symptoms are shown…
Several faults can occur in a simple transistor bias circuit. Possible faults are open bias resistors, open or resistive connections,…
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What is optocoupler? An optocoupler is an optical link and it connects two circuits via this link. The optical link…
Phototransistors are used in a variety of applications. A light-operated relay circuit is shown in below Figure (a). The phototransistor Q1…
