(60%) For the circuit as shown in the following figure, use the given output cha
ID: 2314176 • Letter: #
Question
(60%) For the circuit as shown in the following figure, use the given output characteristics of the power transistor and assume that I_BQ is 10mA and the input ac signal results in a I_b(ac) of 2mA (peak value) to Calculate I_CQ and the DC input power provided by the DC supply Calculate I_C(ac)-peak, the ac output power delivered to the primary side of the transformer and power efficiency eta. Calculate the ac output power delevered to the load. Compute the maximal output power P_0(ac)max that can be delivered by the configuration and also the maximal power efficiency eta_max.Explanation / Answer
a) in the output characteristics is clearly that ICQ is aprox. 250mA.
b) for a bjt transistor we know that: Ic=B*Ib, or Ic=hfe*Ib, assuming hfe=150
ICac=150*2mA=300mA
c) IL=2*ICac=600mA,
the maximum Power occur when Ib=14mA --> Ic=2.1A, IL=4.2A
PLmax=(4.2)^2*5ohm=88.2W
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.