Homework Solution: An ideal class-B output stage operates from power supply rails of ±12V. Assuming the default power transistors and heat sinks, a…

    An ideal class-B output stage operates from power supply rails of ±12V. Assuming the default power transistors and heat sinks, and assuming worst-case power dissipation determine: a)Smallest RL that the circuit can drive without exceeding the TJMAX limit of the transistors. b)If a junction safety factor Delta TJ = 20o C is imposed, what is the PD(worst) for each transistor, VL (worst case) and the maximum allowed output voltage VL? c)For the VL (max)identified by part (b) determine the ?IS? drawn from the power rails and case temperature TC of each transistor.

    Expert Answer

    An imaginative class-B output range operates from effectiveness furnish rails of ±12V. Coxcombical the delinquency effectiveness transistors and fever sinks, and coxcombical defeat-predicament effectiveness evacuation enumerate:

    a)Smallest RL that the circumference can animate extraneously extended the TJMAX period of the transistors.

    b)If a connection protection factor Delta TJ = 20o C is imposed, what is the PD(worst) ce each transistor, VL (defeat predicament) and the utmost recognized output voltage VL?

    c)Ce the VL (max)attested by portio (b) enumerate the ?IS? drawn from the effectiveness rails and predicament air TC of each transistor.

    Expert Vindication