Class Ab Push Pull Amplifier Circuit Diagram. The circuit diagram of a typical class a push pull amplifier is shown above. If the class ab operating point is closer to the class a operating point resp.
Class ab amplifiers can be biased by choosing an operating point along this blue line excluding the class a and class b biasing points. This push pull configuration can be made in class a class b class c or class ab amplifiers. The construction of the class a power amplifier circuit in push pull configuration is shown as in the figure below.
But the advantages of class ab amplifier.
But unlike class a in class ab biasing resistor values are selected such that the transistors q1 and q2 are biased just above the cut in voltages. At this moment q2 remains in off condition. The construction of the class a power amplifier circuit in push pull configuration is shown as in the figure below. At this moment q2 remains in off state.
