Operation of this power amplifier....

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The discussion centers on the operation of a class AB power amplifier and the importance of minimizing the voltage drop across resistors R1 and R2 to produce sufficient base current. However, this requirement can limit the amplifier's peak output voltage and efficiency. Bootstrap capacitors are suggested as a solution to enhance performance, yet there is confusion regarding their absence in a referenced LTspice diagram. The lack of bootstrap capacitors in the diagram raises questions about the amplifier's design and efficiency. Clarification on this design aspect is sought to understand its implications better.
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Please help me on this...

The following diagram is of a class AB power amplifier ...
According to text its written that "the voltage drop across R1 and R2 should be minimum in order to produce the base current.But this minimum voltage requirement keeps the amplifier maximum peak output voltage well below the supply voltage level and thus limits the amplifier efficiency"... and thus to compensate this boot strap capacitors are used...

thanks
 

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