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Collector feedback bias

Collector feedback bias

The DC base predisposition voltage is gotten from the authority voltage VC, subsequently giving great security.To keep the transistor active and collect negative feedback, we employ a collector-emitter feedback. The DC base biased voltage is the result of the collector voltage VC, which helps to maintain stability in the active region.

In contrast to the base bias arrangement that was previously discussed, the base resistor RB in Figure is connected to the collector rather than VCC. The authority voltage gives the inclination to the base-producer intersection. The “offsetting” effect of the negative feedback tends to maintain the Q-point’s stability. VC decreases as a result of the increased voltage across RC experienced by the IC when it tries to increase. IB decreases as voltage across RB decreases, which results in a decrease in VC. The decrease in VC is compensated for by the reduction in IB, which results in a smaller amount of IC and, in turn, a lower voltage across RC.

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