Class A Power Amplifier Theory, Efficiency equation, Advantages and Disadvantages

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Class A power amplifier is one of the simplest types of power amplifier have high fidelity and totally immune to crossover distortion. In the standard common emitter circuit configuration, class A amplifier uses the switching transistor.  The transistor is always turned ON so that the output current flows for the entire cycle of the input waveform. To control the high load current, class A amplifier may use a single power transistor or a pair of a transistor connected together. In our previous article, we explain power amplifier circuit,  semiconductors, diodes, rectifiers in detail. Here we are going to explain Class A Read More …