Tags » Transistors

Thermal Runaway

The maximum power dissipation in a transistor depends on transistor construction and may lie in the range from few mW to some Watts.

The power dissipated in a transistor is predominantly the power dissipated at its Collector Base junction. 190 more words


Millers Theorem

In general, the miller theorem is used for converting any circuit having configuration of figure 2.48 (a)  to another configuration shown in figure 2.48 (b) 113 more words


Signal Variation


>>  It is the maximum or peak change in the value of voltage and current with respect to DC value.

>>  Based upon the value of signal variation, amplifier can be divided into two types. 161 more words


What next for integrated circuits?

There is currently a big problem in the semiconductor industry. While technological progress and commercial pressure demand that electronics must be made smaller and faster, we are getting increasingly close to the fundamental limits of what can be achieved with current materials. 934 more words


Biasing of BJT

>>  Biasing refers to providing appropriate DC voltage and DC current to an electronic device to operate it in a desired way.

>>  A BJT is biased due to following reasons : 45 more words


Stability Factors

>>  Stability factor indicates degree of change in operating due to variation in temperature. There are three variables which are temperature dependent. We can define three stability factors : 80 more words


Variation of Operating Point

>>  Two important factors are two be considered while designing the biasing circuit which are responsible for shifting the operating point (VCE, IC).


  • Variation in ICO :  The flow of current in the circuit produces heat at the junctions.
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