Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Consider the emitter follower in Figure 1 with VCC = 10V, I = 100 mA, and RL = 100Ω.
(a) Find the power dissipated in Q1 and Q2 under quiescent conditions. (vO = 0V)
(b) For a sinusoidal output voltage of maximum possible amplitude (neglecting VCEsat ),
find the average power dissipation in Q1 and Q2. Also find the load power.
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- A transistor amplifier circuit is biased so that the quiescent point is to the far left of the load line midpoint. What do you expect to occur when the input voltage begins to vary? O The output voltage will be distorted on the bottom because it will hit the lower limit for VCE before the input voltage arrives at its peak. The output voltage will be distorted on the top because it will hit the upper limit for VCE before the input voltage arrives at its peak. O The output voTransistor's output voltage will look like the input voltage amplified and inverted. The output voltage will be zero (flat).arrow_forwardanswer part b,c, and darrow_forward2. The parameters of the transistor as shown in the figure below are ß = 100 and VA = 100V. a. Find the dc voltages at the base and emitter terminals. b. Find Rc such that VCEQ = 3.5V. c. Assuming Cc and CE act as short circuits, determine the small-signal voltage gain Av = Vo/Vs. d. Repeat part (c) if a 5000 source resistor is in series with the vs signal source. V+ = +5 V Rs = 100 £2 www Us Cc RB = 10 ΚΩ I= Iausmi 0.35 mA www RC -000 V=-5 V CEarrow_forward
- A base bias method is used in the following circuit. For Bpc - 300, the value of emitter current is: -Vc. +15 V Rc 1.8 k2 RB 560 k2 7.82 mA O 6.84 mA O 7.27 mAarrow_forwardQ3 Figure 3 shows two current mirrors based on MOSFET. Derive a formula relating the input current Iin to the output current Iout for the current mirror on the left of Figure 3 stating any assumption. (a) (b) Derive the input resistance Rin and output resistance Rout for the circuit on the left of Figure 3. State any assumption. (c) Derive a formula relating lin and Iout for the circuit on the right of Figure 3 assuming that M1 and M2 are identical, and that the length and width of the channel for the transistor M4 are double respect to those of M3. State anv assumption. VDD M3 M4 out Iout M1 M2 M1 M2 Vss = 0 V Vss = 0 V Figure 3arrow_forwardTime left 1:46:17 A bipolar junction transistor is described in the figure below. The transistor is implemented in the circuit with Vcc, Rc, and RB equal to 16 volts, 2k, and 10kn. Determine the value of Vout if Vin = 1.1V. V... in RB B Vec Ro V E outarrow_forward
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