The small input voltage Vin is amplified by the transistor and we get output voltage Vo across emitter resistor of the transistor. In this configuration, when input signal is positive going, output is also positive and when input is negative output is also negative, as shown in above wave diagram.
Read MoreCommon Collector Configuration: CC ModeIn this circuit, the emitter is common to both input and output terminals of amplifier circuit. Thus, the input signal is connected between base & emitter and the amplified output signal is taken between collector & emitter, so that emitter is common.
Read MoreCommon Emitter Configuration: CE ModeThe transistor is used as an amplifier. But in amplifier circuit there two input terminals and two output terminals. However, the transistor has only three terminals. So any one terminal of the transistor is KEPT COMMON to the input and output terminals of amplifier circuit.
Read MoreCommon Base Configuration: CB ModeThere are two important parameters of a transistor: the (α) and the (β). The relation between emitter current Ie and the collector current Ic is given by the parameter, known as alpha (α) of the transistor.
Read MoreParameters of Bipolar TransistorThe PNP transistor can be used in two different modes: forward biased mode and the reverse biased mode. In forward biased mode, the current can easily flow through it. So it acts like a CLOSED SWITCH.
Read MoreHow PNP Transistor Works?
Bipolar and unipolar transistors can be categorized according to their basic functionality. In bipolar transistor the electric current flows due to BOTH electrons and holes through it. However, in unipolar transistor the current flows EITHER due to electrons OR holes through it.
Read MoreIntroduction to Bipolar & Unipolar Transistors
