(a) Design the bridge circuit in Figure 15.46 such that the gain magnitude of each op-amp circuit is 12.

(b) A load resistance of \(R_{L}=12 \Omega\) that is to dissipate an average power of \(\widehat{P_{L}}=15 \mathrm{~W}\) is connected to the output. Determine the peak output voltage at each op-amp and the peak current that each op-amp must source or sink.

(c) If the peak output voltage of each op-amp is limited to \(\pm 12 \mathrm{~V}\) and the peak current that each op-amp can source or sink is limited to \(0.8 \mathrm{~A}\), determine (i) the maximum average power that can be delivered to the load and (ii) the optimum value of load resistance.

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R ww R ww A von RA RL ww R3 ww A2 v02 + Figure 15.46 Bridge power amplifier