11/13/2023 0 Comments Pnp diode symbol![]() ![]() The emitter terminal is formed by P-type semiconductor thus, for forward biasing the P-type terminal should be connected with positive terminal and N-type with negative terminal. PNP transistor works when the emitter-base junction is forward biased while collector-base junction is reverse biased. The magnitude of the voltage of the battery which is used to bias emitter and base terminal of the transistor is more as compared with the battery source which is used to bias the collector base terminal of the battery source. The collector based junction is reversed biased by connecting the collector terminal with the negative terminal of the battery V CB while the base terminal is connected to positive terminal of the battery V CB. Therefore, the emitter terminal is connected to the positive terminal of the battery V EB while the base terminal of the transistor is connected to a negative terminal of the battery V EB. ![]() ![]() The PNP transistor is biased in such a way that the base-emitter junction is forward biased and collector based junction is reversed biased. The semiconductor material which is between both this semiconductor is called base terminal. It will have three terminal, the first P-type semiconductor is called emitter and the other P-type material is termed as the collector. The structure thus formed will be a PNP transistor. The PNP transistor is formed three layer of semiconductor, one is N-type and other two are P-type. Before that, let’s discuss its construction. You will understand this concept in the working which I will be discussing later in this article. You must be thinking how the flow of holes results in the flow of current in the circuit. Thus, the current which generates at the collector is the consequence of the movement of holes. The majority charge carriers involved in the conduction process of PNP transistor are holes. ![]()
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