Amplifying properties of transistors determined by the properties of the material, from which they are made, Production Technologies, design, operating mode and switching circuit. With increasing frequencies the reinforcing properties deteriorate. It means, that reduces gain, power output falls, there is a phase shift, t. it is. output delay… Continue Reading
The amplifier stage transistor should contain, a source of electrical energy and auxiliary elements. In the input circuit switched source, and output - Load. Hereinafter we shall describe the signal source in the form er generator voltage and internal resistance Rr, and the load… Continue Reading
Transistor characteristics are nonlinear. However, if it is in a certain mode (mode determined by the current through the transistor and the voltage at its electrodes), the straight line segments can be considered for a small change of current and voltage characteristics of the portions. In this case, for small signals, the transistor… Continue Reading
Temperature effect on the position of the input characteristics of the circuit with ON while maintaining unchanged its parameter similar to its effect on the semiconductor diode CVC. In the normal active mode of the emitter current of the junction can be represented by the formula . With increasing temperature thermal current Ieo grows faster,… Continue Reading
There are three main circuit switching transistor as a quadrupole: common base circuit ( ABOUT ), common emitter ( OE ) and a common collector ( OK ) (rice. 4.6). rice. 4.6 With any switching circuit, the principle of operation of the transistor remains unchanged… Continue Reading