Question

It is just the question 4 needs to be solved. Mind the changes in question 4.

Question 4 1 pts Consider practice question 3.4. The resistor RL is changed to 1.9 kilo-ohms. Solve part (a) of the question to find resistor R in kilo-ohms. 3.4. For the emitter follower in the figure below, given Vcc = 15 V, Vee=-15 V, Ri = 1 kQ and B= 100 for all the transistors. In the following calculations assume VCEsat= 0.2 V and VBe= 0.7 V. For this circuit find the following The value of resistor R that will establish a bias current sufficiently large to allow the largest possible output voltage swing. Include the base currents for both Q2 and Q3. The maximum output signal swing, explain your answer. The minimum and maximum emitter currents for Qi, explain your answer. (a) (b) (c) Vсс VBE R VEE VEE

Answer 1

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all nitanu h RL RL+ Ye aldume 3000 RLE1gKR . 19+re I-9 3 Ye+ S.7 Yet9)319 eE L9-5+kn 3 3 Te = ig-57) Tel 18K Te=-3-8k2 esitana not pffible for active -ve Value KLC6TT MFT dinda elament bbut that i possitle baffive element luke RLC Te= 3.8 K- 1 AS We KMoue Ye = Faom Fomm= AIV Ye MAIV 3.8 O-26315MA/V A We Kmou 026315 x26 XL A VT lnge VT henmal Ic=00068421MA 273+27 1600 ad Yoom tempr I-6.8404MA 26 m A IE= O00691mA LE= 6.91NA

I IE-L I 6-91KA- 4736 MA R I =-4.729- LE4.2mA IR= 4134 IIl = 4.729 mA T REHT21 IRE(A+2) P A S1- IR o2 x 4.72 mA R= 4.8226 MA o01 VM-o.7-15 K VL Vt 14.2 V Vin(07-15V from gnund to Vn KVL R IR(R)-V O Vm O-IRCR)-43) 14.3-RIR 14-3-RIRO R= 14.3 IR RE14.3 K2 4.82.36 R=2g64K H 70 TH