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Electrical Engineering

What is a voltage divider biasing?

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2009-04-10 06:31:57

Biasing-Application of suitable DC voltages to operate our

amplifiers in desired region of operation(say active or saturation

or cut-off region) complying our needs.However in order to maintain

a constant Q point irrespective of various external factors,hence

it again comes to the need for biasing that compensates the change

in external factors suitably thereby maintaining a constant

Q-point. Voltage divider bias or self bias is a process of suitably

biasing amplifier by connecting two resistors in series in the

answer. By proper selection of resistors R1 and R2, the operating

point of the transistor can be made independent of β.

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