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A transistor begin to conduct if the Vbe is ~.6v following an exponential curve therefore non very linear. by biasing it is possible to achieve a linear portion of the load lines
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What are the factors that affect the bias stability of a transistor?
temperature
Why the base bias Q-point in transistor circuits changes with temperature?
why we use base resistor in emitter bias
How operating point of transistor shifting?
Usually, the operating point of a transistor shift because of temperature induced gain or bias changes.
What is an unbiased transistor?
An unbiased transistor is one being used with no bias voltage to offset its operating point. If the input signal is very small it still can operate as an amplifier but the output will be non-linear. One use for an unbiased transistor is when the transistor is used as a switch, turning it on or off.
How do NPN bipolar junction transistors turn on and off?
In order to bias a bipolar junction transistor on, you need to forward bias the base-emitter junction at the same time you forward bias the collector-emitter junction, and the ratio of collector current over base current must be somewhat less than hFe, the transistor's gain. This is known as saturated, or non-linear mode, operation. In practice, we drive the base much harder than the calculated required current, so as to minimize dependency on varying hFe's for various transistors.Turning the transistor off is a simple matter of eliminating the base current.In the case of the NPN transistor, the base and collector would need to be more positive than the emitter. In the case of the PNP, they would need to be more negative.
Why do you consider it necessary to bias transistor?
Why do you consider it neccessary to bias transistor?
What has the author Eric Wolfendale written?
Eric Wolfendale has written: 'Transistor bias tables (germanium)' 'Transistor bias tables'
What is the voltage necessary to forward bias a transistor?
A silicon transistor needs about 0.65 v of forward bias on the base to begin to conduct.
What are the bias conditions base collector junctions for a transistor to operate as a switch?
Reverse bias
Why do you bias a field effect transistor?
we do bias field effect transistor because FET works if its Q point lies into active reason .If we bias FET ,the Q point lies in active reason
How do you bias a 2N5777 photo transistor?
connect the base of the transistor to a variable resistor and to a normal resistor
How do you bias a 2N5777 photo-transistor?
connect the base of the transistor to a variable resistor and to a normal resistor
What are the factors that affect the bias stability of a transistor?
temperature
Why is it necessary to bias a transistor when it is to be used as an amplifier?
Biasing is necessary in a transistor circuit to keep the transistor working. Without proper biasing, the circuit will fail
Why the base bias Q-point in transistor circuits changes with temperature?
why we use base resistor in emitter bias
Why a transistor can be operated in active region?
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.
In which transistor bias method is the input signal rectified?
in which of the following transistor bias methods is the input singel rectified? A. source biasing b.voltage divider biasing c.power supply biasing d.avc biasing
