Transistor Amplifier Design

Published:2012/10/8 2:36:00 Author:muriel | Keyword: Transistor Amplifier | From:SeekIC

Good stability and sufficient amplification in Transistor based circuits depends on the proper selection of components and their layout. Gain of the transistor used as well as the current and voltage through it are the most important aspect in the working of a transistor amplifier. Here explains the design parameters of an one transistor amplifier circuit. Circuit layout of the Transistor Amplifier A PNP signal amplifier is shown in Fig.1. It is used to amplify the signals using a PNP transistor. Resistors are placed in their positions but values are not fixed. The resistors around T1 includes 1. R2-R1- A potential divider to provide base current to T1.2. R3 – Emitter resistor of T1 that determines the Emitter voltage and current.3. R4 –Collector resistor of T1 that determines the collector voltage and current and hence the strength of output signal. Fig.1 Transistor Amplifier Layout



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