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What does gm0 represent in a BJT amplifier circuit?
gm0 is not used in BJT amplifier circuits; it is used in JFET circuits. It is the transconductance at zero gate bias. Since the transconductance varies as the bias is varied, this gives a benchmark level at a given defined point, and other transconductances can be calculated from it as a function of the amount of negative bias on the gate. If it were linear it would be the same everywhere, but it is not.
What are the different types of biasing?
Fixed Bias,Self Bias, Forward Bias, Reverse Bias
Which is an example of self serving bias?
the bias that we are better, smarter, and kinder than others
Why self bias is not suitable for enhancment type mosfet?
With the E-MOSFET, VGS has to be, 'greater than VGS(th) to get any drain current at all. Therefore, when E-MOSFETs are biased, self-bias, current-source bias, and zero bias cannot be used because these forms of bias depend on the depletion mode of operation. This leaves gate bias, voltage-divider bias, and source bias as the means for biasing E-MOSFETs.
What is difference between early effect and punch through in BJT?
When we apply reverse bias voltage to input and output sides of a BJT, then the width of the depletion layer at emitter-base and base-collection got increased. Due to which the effective base width got decreased. This phenomenon of reduction in the base width is called Early effect. And if we go on increasing the Reverse bias voltage then at a time instant the width of the base becomes zero and this effect is called punch through effect and that reverse bias voltage is called punch through voltage.
What is self bias common collector?
The picture quality is not that great but here is a drawing of a self biased common collector BJT http://imageshack.us/photo/my-images/200/selfbiasedcommoncollect.png/
What are the classification of amplifiers according to transistor configuration?
common emitter using fixed bias
What does gm0 represent in a BJT amplifier circuit?
gm0 is not used in BJT amplifier circuits; it is used in JFET circuits. It is the transconductance at zero gate bias. Since the transconductance varies as the bias is varied, this gives a benchmark level at a given defined point, and other transconductances can be calculated from it as a function of the amount of negative bias on the gate. If it were linear it would be the same everywhere, but it is not.
What do you mean by emitter bypass capacitor?
a capacitor that bypasses a BJT's emitter bias resistor so the emitter is at AC ground but has a DC bias voltage on it to set operating conditions. without the bypass, the bias would not stay constant.
How biasing of FET differs from biasing of BJT?
in BJT forwardbiasing & reverse biasing are carried out but in FET voltage divider biasing &self biasing are carried out.
What bias is called self bias?
What? Bias is a one sided opinion
Which stability is greater between self bias and fixed bias?
of course stability of self bias circuit is much greater than fixed bias circuit
What are the different types of biasing?
Fixed Bias,Self Bias, Forward Bias, Reverse Bias
Explain the operation of a forward bias circuit include any related diagam?
tel me the devices like diode,mosfet,bjt....etc.
Turn on and off time in bjt?
The turn-on time in a bipolar junction transistor (BJT) refers to the duration it takes for the transistor to switch from the cutoff region (off state) to the saturation region (on state) after a forward bias is applied. Conversely, the turn-off time is the time required for the BJT to switch from saturation back to cutoff after the bias is removed. These times are influenced by factors such as the transistor's internal capacitances, the base drive current, and the collector-emitter voltage. Minimizing these times is crucial for improving the switching speed in high-frequency applications.
Why emitter bias circuit is called self bias?
The emitter bias circuit is called self-bias because the bias voltage across the emitter-resistor is based on the transistor's own characteristics. The bias voltage adjusts itself based on the varying collector current to stabilize the operating point of the transistor. It is a self-adjusting mechanism that helps maintain a stable bias point for the transistor.
Which is an example of self serving bias?
the bias that we are better, smarter, and kinder than others
