Microelectronics: Circuit Analysis and Design
4th Edition
ISBN: 9780073380643
Author: Donald A. Neamen
Publisher: McGraw-Hill Companies, The
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Textbook Question
Chapter 1, Problem D1.69DP
Design a circuit to produce the characteristics shown in Figure P1.69, where
Figure P1.69
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Q2. For the transformer shown in Fig. 1.
A. Plot the winding connection for the transformer and justify your answer.
(4M)
B. If the transformer is adopted in 12 pulse diode rectifier, where two-series connected
bridge rectifiers are used to supply a highly inductive load with 100 A. (i) Select a
suitable turns ratio for the transformer (ii) Plot the line current of each winding (
secondary + primary) showing the current magnitude at each interval (iii) Use Fourier
Page 1 of 3
analysis to obtain the Fourier series of all line currents then calculate the THD of the
input current.
(8=0°
(16M)
(Y) = 30°
Fig. 1
P. I v
I
Q2. For the transformer shown in Fig.1,
A. Find the phase shift between the primary and star-connected secondary.
B. If the transformer is adopted in a 12-pulse diode rectifier, where a two-series
connected bridge rectifier is connected in series and supplies a highly inductive load
(i) Select a suitable turns ratio for the transformer
(ii) Plot the line current of each winding (secondary + primary).
(iii)Using Fourier analysis to obtain the Fourier series of all line currents, then calculate
the THD of the input current.
(iv) Draw the output voltage of the first and second rectifiers and give the relation of
the total output voltage.
N2
B
C
Fig. 1
N3
a
Q2.A. It is planned to use the transformer shown in Fig. 1, a 12-pulse rectifier. Each
secondary is connected to three phase controlled bridge rectifier. The two rectifiers
are connected in series to supply a highly inductive load.
1. Based on the phasor relationship between different windings. If suitable turns
ratio is selected, is it possible to use this transformer to produce 12 pulse
output voltage? Show the reason behind your answer.
2. Assuming this arrangement is possible to be used in 12-pulse rectifier, draw
the output voltage of the 1st and 2nd rectifier and give the relation of the total
output voltage.
3. Use the Fourier analysis to show the harmonics in all line currents of the
transformer.
A
B
in
C
Fig. 1
b
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a
2
b.
Chapter 1 Solutions
Microelectronics: Circuit Analysis and Design
Ch. 1 - Calculate the intrinsic carrier concentration in...Ch. 1 - (a) Calculate the majority and minority carrier...Ch. 1 - Consider ntype GaAs at T=300K doped to a...Ch. 1 - Consider silicon at T=300K . Assume the hole...Ch. 1 - Determine the intrinsic carrier concentration in...Ch. 1 - (a) Consider silicon at T=300K . Assume that...Ch. 1 - Using the results of TYU1.2, determine the drift...Ch. 1 - The electron and hole diffusion coefficients in...Ch. 1 - A sample of silicon at T=300K is doped to...Ch. 1 - (a) Calculate Vbi for a GaAs pn junction at T=300K...
Ch. 1 - A silicon pn junction at T=300K is doped at...Ch. 1 - (a) A silicon pn junction at T=300K has a...Ch. 1 - (a) Determine Vbi for a silicon pn junction at...Ch. 1 - A silicon pn junction diode at T=300K has a...Ch. 1 - Recall that the forwardbias diode voltage...Ch. 1 - Consider the circuit in Figure 1.28. Let VPS=4V ,...Ch. 1 - (a) Consider the circuit shown in Figure 1.28. Let...Ch. 1 - The resistor parameter in the circuit shown in...Ch. 1 - Consider the diode and circuit in Exercise EX 1.8....Ch. 1 - Consider the circuit in Figure 1.28. Let R=4k and...Ch. 1 - The power supply (input) voltage in the circuit of...Ch. 1 - (a) The circuit and diode parameters for the...Ch. 1 - Determine the diffusion conductance of a pn...Ch. 1 - Determine the smallsignal diffusion resistance of...Ch. 1 - The diffusion resistance of a pn junction diode at...Ch. 1 - A pn junction diode and a Schottky diode both have...Ch. 1 - Consider the circuit shown in Figure 1.45....Ch. 1 - Consider the circuit shown in Figure 1.46. The...Ch. 1 - A Zener diode has an equivalent series resistance...Ch. 1 - The resistor in the circuit shown in Figure 1.45...Ch. 1 - Describe an intrinsic semiconductor material. What...Ch. 1 - Describe the concept of an electron and a hole as...Ch. 1 - Describe an extrinsic semiconductor material. What...Ch. 1 - Describe the concepts of drift current and...Ch. 1 - How is a pn junction formed? What is meant by a...Ch. 1 - How is a junction capacitance created in a...Ch. 1 - Write the ideal diode currentvoltage relationship....Ch. 1 - Describe the iteration method of analysis and when...Ch. 1 - Describe the piecewise linear model of a diode and...Ch. 1 - Define a load line in a simple diode circuit.Ch. 1 - Under what conditions is the smallsignal model of...Ch. 1 - Describe the operation of a simple solar cell...Ch. 1 - How do the i characteristics of a Schottky barrier...Ch. 1 - What characteristic of a Zener diode is used in...Ch. 1 - Describe the characteristics of a photodiode and a...Ch. 1 - (a) Calculate the intrinsic carrier concentration...Ch. 1 - (a) The intrinsic carrier concentration in silicon...Ch. 1 - Calculate the intrinsic carrier concentration in...Ch. 1 - (a) Find the concentration of electrons and holes...Ch. 1 - Gallium arsenide is doped with acceptor impurity...Ch. 1 - Silicon is doped with 51016 arsenic atoms/cm3 ....Ch. 1 - (a) Calculate the concentration of electrons and...Ch. 1 - A silicon sample is fabricated such that the hole...Ch. 1 - The electron concentration in silicon at T=300K is...Ch. 1 - (a) A silicon semiconductor material is to be...Ch. 1 - (a) The applied electric field in ptype silicon is...Ch. 1 - A drift current density of 120A/cm2 is established...Ch. 1 - An ntype silicon material has a resistivity of...Ch. 1 - (a) The applied conductivity of a silicon material...Ch. 1 - In GaAs, the mobilities are n=8500cm2/Vs and...Ch. 1 - The electron and hole concentrations in a sample...Ch. 1 - The hole concentration in silicon is given by...Ch. 1 - GaAs is doped to Na=1017cm3 . (a) Calculate no and...Ch. 1 - (a) Determine the builtin potential barrier Vbi in...Ch. 1 - Consider a silicon pn junction. The nregion is...Ch. 1 - The donor concentration in the nregion of a...Ch. 1 - Consider a uniformly doped GaAs pn junction with...Ch. 1 - The zerobiased junction capacitance of a silicon...Ch. 1 - The zerobias capacitance of a silicon pn junction...Ch. 1 - The doping concentrations in a silicon pn junction...Ch. 1 - (a) At what reversebias voltage does the...Ch. 1 - (a) The reversesaturation current of a pn junction...Ch. 1 - (a) The reversesaturation current of a pn junction...Ch. 1 - A silicon pn junction diode has an emission...Ch. 1 - Plot log10ID versus VD over the range 0.1VD0.7V...Ch. 1 - (a) Consider a silicon pn junction diode operating...Ch. 1 - A pn junction diode has IS=2nA . (a) Determine the...Ch. 1 - The reversebias saturation current for a set of...Ch. 1 - A germanium pn junction has a diode current of...Ch. 1 - (a)The reversesaturation current of a gallium...Ch. 1 - The reversesaturation current of a silicon pn...Ch. 1 - A silicon pn junction diode has an applied...Ch. 1 - A pn junction diode is in series with a 1M...Ch. 1 - Consider the diode circuit shown in Figure P1.39....Ch. 1 - The diode in the circuit shown in Figure P1.40 has...Ch. 1 - Prob. 1.41PCh. 1 - (a) The reversesaturation current of each diode in...Ch. 1 - (a) Consider the circuit shown in Figure P1.40....Ch. 1 - Consider the circuit shown in Figure P1.44....Ch. 1 - The cutin voltage of the diode shown in the...Ch. 1 - Find I and VO in each circuit shown in Figure...Ch. 1 - Repeat Problem 1.47 if the reversesaturation...Ch. 1 - (a) In the circuit Shown in Figure P1.49, find the...Ch. 1 - Assume each diode in the circuit shown in Figure...Ch. 1 - (a) Consider a pn junction diode biased at IDQ=1mA...Ch. 1 - Determine the smallsignal diffusion resistancefor...Ch. 1 - The diode in the circuit shown in Figure P1.53 is...Ch. 1 - The forwardbias currents in a pn junction diode...Ch. 1 - A pn junction diode and a Schottky diode have...Ch. 1 - The reversesaturation currents of a Schottky diode...Ch. 1 - Consider the Zener diode circuit shown in Figure...Ch. 1 - (a) The Zener diode in Figure P1.57 is ideal with...Ch. 1 - Consider the Zener diode circuit shown in Figure...Ch. 1 - The Output current of a pn junction diode used as...Ch. 1 - Using the currentvoltage characteristics of the...Ch. 1 - (a) Using the currentvoltage characteristics of...Ch. 1 - Use a computer simulation to generate the ideal...Ch. 1 - Use a computer simulation to find the diode...Ch. 1 - Design a diode circuit to produce the load line...Ch. 1 - Design a circuit to produce the characteristics...Ch. 1 - Design a circuit to produce the characteristics...Ch. 1 - Design a circuit to produce the characteristics...
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