Consider the class−AB output stage in Figure P8.48. The parameters are:
Figure P8.48
(a)
The value of
Answer to Problem 8.48P
Thevalue of the voltage
Explanation of Solution
Calculation:
The given diagram is shown in Figure 1
The conversion from
The conversion from
The expression for the value of
Substitute
The expression for the value of the current
The expression for the value of the current
The expression for the value of the current
Substitute
The expression for the value of the current
The expression for the value of the current
The expression for the value of base to emitter voltage
The expression for the value of base to emitter voltage
The expression for the value of
Substitute
Substitute
Substitute
The expression for the value of base to emitter voltage
The expression for the value of base to emitter voltage
The expression for the value of the base to emitter voltage
Substitute
Substitute
Substitute
Substitute
The expression for the value of the current
Substitute
Substitute
Substitute
Substitute
The expression for the value of the voltage
Substitute
Conclusion:
Therefore, the value of the voltage
(b)
The value of
Answer to Problem 8.48P
The value of power delivered
Explanation of Solution
Calculation:
The expression for the value of the current
Substitute
The expression for the voltage
Substitute
The expression for the voltage
Substitute
The expression for the value of the voltage is given by,
Substitute
The expression for the value of the current for
Substitute
The expression for the value of the power delivered to the load is given by,
Substitute
The expression for the power delivered in the transistor of
Substitute
The expression for the power delivered in the transistor of
Substitute
The expression for the value of the current
Substitute
The expression for the value of the power dissipated in the transistor
Substitute
Conclusion:
Therefore, the value of power delivered
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Chapter 8 Solutions
Microelectronics: Circuit Analysis and Design
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