Find corresponding value of power-conversion efficiency.

12.15 Consider the class B BJT output stage with a square-wave output voltage of amplitude ˆVo across a load RL and employing power supplies ±VSS . Neglecting the effects of finite VBE and VCEsat , determine the load power, the supply power, the power-conversion efficiency, the maximum attainable power-conversion efficiency and the corresponding value of ˆVo, and the  maximum available load power. Also find the value of ˆVo at which the power dissipation in the transistors reaches its peak, and the corresponding value of power-conversion efficiency.

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