v Through proper
biasing, a desired quiescent operating point of the transistor amplifier in the
active region (linear region) of the characteristics is obtained. It is desired
that once selected the operating point should remain stable. The maintenance of
operating point stable is called Stabilisation.
v
v The selection of a
proper quiescent point generally depends on the following factors:
(a)The amplitude of the signal to be handled by the
amplifier and distortion level in signal
(b)The load to which the amplifier is to work for a
corresponding supply voltage
●
v The operating point
of a transistor amplifier shifts mainly with changes in temperature, since the
transistor parameters — β,
ICO and VBE (where the symbols carry their usual
meaning)—are functions of temperature.
0 comments:
Post a Comment