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A silicon transistor needs about 0.65 v of forward bias on the base to begin to conduct.
a transistor can only work in active region cox in active region collector base junction is in reverse bias and emitter base junction is in forward bias.
If emitter-base is reverse biased then there will be no amplification effect on collector-emitter. If collector-base is forward biased, it will act like a diode, but without emitter-base current, that is meaningless.
I know nothing about fixed bias,So I try this web to know but this web address fail to answer my question.What_is_fixed_bias_circuitthis is a fake web it can't help anyoneSudip
The main advantage of ac- it required less maintainance The main disadvantage of ac-it can not be stored the main advantage of dc -it required less amount of conductors to transmit and easily stored The main disadvantage of dc-it is more dangerous than ac at high voltage
Base resistor method (or) Fixed bias methodBiasing with feedback resistor (or) Collector to base bias methodVoltage divider bias (or) Self bias
why we use base resistor in emitter bias
Reverse bias
Get Keeping, Coverage, and Statement Bias
the advantage of self bias circuit will be stable for greater range of amplitude signal than the fixed biased amplifier circuit the disadvantage is it only partially effective and therefore is only used where moderate changes in ambient temperature are expected
I believe that the main disadvantage is that it is an expensive process.
The main disadvantage of wired system is that they are very complex. The wiring increases the complexity of the systems.
bias or primary
A silicon transistor needs about 0.65 v of forward bias on the base to begin to conduct.
a transistor can only work in active region cox in active region collector base junction is in reverse bias and emitter base junction is in forward bias.
the disadvantage is that they could die out
the disadvantage is that they could die out