How to Determine the Type of Basic Transistor Amplifier Circuit 1

The determination of basic transistor amplifier circuits is a fundamental and essential skill in electronic circuit design and analysis. The BCM4306KFB transistor, as a three-terminal device, primarily consists of the collector, base, and emitter. Depending on which of these three terminals is connected as the common terminal (grounded), the basic transistor amplifier circuits can be categorized into three types: common-emitter amplifier circuits, common-collector amplifier circuits (also known as emitter followers), and common-base amplifier circuits.transistor

Common emitter amplifier circuit

The common-emitter amplifier circuit is the most prevalent type of amplifier circuit, where the emitter serves as the common terminal (grounded). The input signal is applied between the base and emitter, while the output signal is taken from the collector and emitter. This circuit is characterized by high voltage gain and moderate input and output impedances. As the primary form of voltage amplification, the common-emitter amplifier circuit is widely used in various analog signal amplification applications.transistor