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Consider the differential amplifier in Figure 11.20 . The transistor parameters are given in Example 11.8, except that
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Chapter 11 Solutions
Microelectronics: Circuit Analysis and Design
- How experimental setup is prepared for a CE transistor configuration. Drawits a h-parameter model. Find amplifier parameters given below using this model- (i) Current gain(ii) Input impedance(iii) Voltage Amplification (AVS) consideration source impedance(iv) Current Amplification (AIS) consideration source impedancearrow_forwardWhich of the following is NOT true Select one: a. Feedback removes the effect of transistor variability from the circuit b. Transistors come in two varieties, BJTS and MOSFETS c. BJTS can be described using current gain or transconductancearrow_forwardThe common-mode gain is ........... 1. very high 2. very low 3. always unity 4. unpredictablearrow_forward
- 11. i) Design a series Op-Amp regulated O/P of 12V which its I/P voltage is 20V. Chose the designed components and draw the circuit diagram ii) Design a shunt transistor regulated O/P of 6V which its I/P voltage is 15V. Chose the designed components and calculate I, with drawing the circuit diagramarrow_forwardQUESTION 10: The circuit parameters for diff-amp shown in Figure 11.30 are V* = 6 V, V = -6 V, and Io = 0.45 mA. The transistor parameters are ß = 74, V₁1 = V42 = 115 V₂ V 43 V 44 = 90 V, and V45 = ∞0. Determine the open-circuit differential-mode voltage gain. What is the output resistance of the diff-amp? Find the value of load resistance R₁ that reduces the differential-mode gain to 71 percent of the open-circuit value. Ad (open circuit) Format: 7842.2636277565 R₂ (kn) Format: 429.43075670268 Format: 672.96782467086 R₁ (kn) ibl iz i₁ 8mºd 2 V+ 25 V- i₂ = 8m'd 2 24 2₂ Signal ground V- Figure 11.30 Cc 8md 2 -Ove RL Sning Toolarrow_forwardQ) One of the advantages of a Direct-coupled amplifier is ..... ... (a) Thermal instability (b) Constant gain from zero (dc) to high frequency (c) Small size (d) Low costarrow_forward
- QUESTION 2 A non-inverting amplifier has a 15-k Rf and a 1.2-kR,. How much is its closed-loop volt 9. 12.5. -12.5. 13.5.arrow_forwardsolve 4 Use a BJT op-amp)1 You’ve been asked to build an alarm system using monstable multvibrator having an activetime pf 100msec.. Explain the principle of operation and the type feedback of the op-amp.What is the advantage of this circuit?2 You’ve been asked to build a low frequency square wave generator using a basic comparatorhaving a frequency of 10kHz and 50% duty cycle. Explain the principle of operation and thetype of feedback of the op-amp. What is the advantage of this circuit?3 Build a Wein-Bridge oscillator using, C=1µF and +10V power supply to produce 10 kHzsinusoidal waveform. Generate your plots and compare output results. Highlight anydiscrepancies and discuss what happens if we want to increase the frequency to 100 kHz.4 Build a high frequency Colpitts oscillator producing 10kHz Discuss its advantage over RCoscillators. How can you modify the circuit to include a crystal in you circuit. What is atypical application of such an oscillator?arrow_forwardSi transistor has ICEO = 0, B = 100, Rc=2kQ, Vcc=12 V. Assume that; (VCEQ = Vcc /2). The circuit of Figure below uses current- (or shunt-) feedback bias. The +Vcc find RC Cc 1. The value of IgQ RF 2. The value of RF lic Rs VL RL Cc R. R;arrow_forward
- Adiff-amp is biased with a constant-current source lo- 0.25mA that has an output resistance of R. - 8MO. The bipolar transistor parameters are B=100, VT = 0.025 V and VA -. Determine the common-mode input resistance. O a. Ricm = 538 MA O b.Ricm- 308 MO OC Ricm = 808 MO Od Ricm = 704 MQarrow_forwardŞe s deve e R yuk utrerncinin ak reguamekteor. M. deyamua kalacak şekinos ie maksimum dečerini hesapie The current of a load resistance Rp is regulated with the feedback circuit shown in the figure. The Mosfet operates in saturation. What is the maximum value of Rp while M, remains in saturation? Circuit parameters / Bevre Perametreleri VREF=2.8 V, Rs=100 , w/L=54/0.18, VoD = 41 V, H,Cox = 200 µA?, VTH = 0.4 V, A = 0, A, = 00. VDD I. * RD A1 VREF Rs O a. 15.96 k O b. 23.94 k O c. 18.62 kn O d. 13.30 kn O e. 7.31 ko O f. 21.28 kO O g. 9.97 kn O h. 4.65 kn WH.arrow_forward(1) Describe in detail the relative advantages of Class A and Class B amplifiers. In what types of circuits would Class B be advantageous over Class A (1I) With the aid of signal diagrams, describe two forms of distortion you would expect to observe on an output signal of a Class B amplifier. (III) Describe in circuit terms the advantages of a Class AB amplifier.arrow_forward
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