Microelectronic Circuits (The Oxford Series in Electrical and Computer Engineering) 7th edition
7th Edition
ISBN: 9780199339136
Author: Adel S. Sedra, Kenneth C. Smith
Publisher: Oxford University Press
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Draw the load line for Fig. 6-35a. What is the collector current at the saturation point? The collector-emitter voltage at the cutoff point?
A single measurement indicates the emitter voltage of the transistor in the circuit of Fig. P6.56 to be 1.0 V. Under the assumption that |VBE| = 0.7 V, what are VB, IB, IE, IC, VC, β, and α ?
Find collector, base and emitter voltages and currents alongwith VCE and VBC ofthe circuit given ahead when RB is set at 400kΩ for transistor with ratio of collector to base current equal to 150. What will be the effect on bias voltage and currents if the transistor is replaced with one with ratio equal to 75.
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- 6b. The transistor consists of three terminals. The main reason for designing configurations is that it requires four terminals in order to provide the input and the output connections of the circuit for effective amplification. Now in your own words describe how Bipolar Transistors Transistor ( BJT ) various configurations are designed with relating diagrams. In your own estimation evalute which one is most widely used when looking at appreciable output for an amplifier?arrow_forwardThe current flowing into the collector lead of a certain bipolar junction transistor (BJT) is measured to be 1 nA. If no charge was transferred in or out of the collector lead prior to t = 0, and the current flows for 1 min, calculate the total charge in nC which crosses into the collector.arrow_forward(a) An n-channel MOSFET has a mobility of 600 cm2/V · s and a channel length of 1 μm. What is the transistor’s fT if VGS − VT N = 0.25 V. (b) Repeat for a PMOS device with a mobility of 250 cm2/V · s. (c) Repeat for transistors in a new technology with L = 0.1 μm. (d) Repeat for transistors in a technology with L = 25 nm.arrow_forward
- stap-by-step with explanation. Consider a single-electron transistor, where the two tunnel barriers (between island and source, and island and drain) each have a tunneling resistance R = 100 kOhm.Calculate the value of source-drain bias voltage V_SD such that every electron that traverses the SET island spends, on average, 1 nanosecond on it. Express the value in microvolts.arrow_forward6.72 For the amplifier circuit in Fig. 6.33(a) with VCC = +5 V and RC = 1 k?, find VCE and the voltage gain at the following dc collector bias currents: 0.5 mA, 1 mA, 2.5 mA, 4 mA, and 4.5 mA. For each, give the maximum possible positive and negative output signal swing as determined by the need to keep the transistor in the active region. Present your results in a table.arrow_forward6. The current flowing into the collector lead of a certain bipolar junctiontransistor (BJT) is measured to be 1 nA. If no charge was transferred in or outof the collector lead prior to t = 0, and the current flows for 1 min, calculatethe total charge which crosses into the collector.arrow_forward
- Enrichment-type MOSFET: Given the transfer characteristics of Fig. 6.58, determine VT and k and write the equation general for ID.arrow_forwardAnswer as soon as possible, I'll upvote. Attach C to B, forming a BJT. If the transistor is made forward-active, draw the new energy-band diagram.arrow_forwardGiven the BJT transistor characteristics of Fig. 4.121 :a. Draw a load line on the characteristics determined by E = 21 V and RC = 3 kΩ for afixed-bias configuration.b. Choose an operating point midway between cutoff and saturation. Determine the value ofRB to establish the resulting operating point.c. What are the resulting values of ICQ and VCEQ?arrow_forward
- Which of the following is true for the transistor shown? A. When a positive voltage is applied to the base, the base current decreases. B. When a positive voltage is applied to the base, the emitter current decreases. C. When a positive voltage is applied to the base, the collector voltage goes less positive.arrow_forward9/ The collector current in a transistor is very small and can be neglected. Select one: True Falsearrow_forwardSolve the following: Calculate the transistor’s Emitter current if it is driven by a small Base current of 7mA with a Collector current of 10mAarrow_forward
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