The figure shows a class B amplifier. Given that VCC = 6.3

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The figure shows a class B amplifier. Given that V_CC = 6.3 V, R_L = 4 ohms and v₀ is sinusoidal voltage of value 4 V, the average power drawn by the two supply voltage will be approximately:

1. 2 W
2. 4 W
3. 6 W
4. 8 W

Correct Option: B

P_dc = V_CQ. I_CQ
In class B push pull amplifier
V_CQ = V_CC

I_CQ =	2I_m	=	2	·	V_m
	π		π		R_L

Now P_dc = V_CC		2V_m		=	2 × 6.3 × 4	≈ 4 watts
		π·R_L			3.14 × 4