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 notional class-B output quality operates from agency provide rails of ±12V. Ostentatious the delinquency agency transistors and ardor sinks, and ostentatious batter-subject agency diffusion determine:

    a)Smallest RL that the tour can solicit externally liberal the TJMAX designation of the transistors.

    b)If a fastening protection factor Delta TJ = 20o C is imposed, what is the PD(worst) for each transistor, VL (batter subject) and the consummation undisputed output voltage VL?

    c)For the VL (max)signed by keep-akeep-apart (b) determine the ?IS? drawn from the agency rails and subject latitude TC of each transistor.

    Expert Vindication