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5) Assume Vin contains a DC and 1.6Hz (10 rad/sec) signal: Vin 10+3 sin(101) a) Determine...
3) [8 pts] For a frequency of 5000 rad/sec, answer the following questions a) If a...
3) [8 pts] For a frequency of 5000 rad/sec, answer the following questions a) If a load impedance Z Load = 250 + j 250 Ω consists of two elements in series (a resistor in series with an inductor OR a resistor in series with a capacitor), I. What is the value of the resistor? II. What is the value of the inductor (in mH) or the capacitor (in μ F )?. b) If the impedance of a capacitor iscapacitor?...
QUESTION Cyril the Circuit Analyst is examining the interaction of both AC and DC sources with a circuit. The circu...
QUESTION Cyril the Circuit Analyst is examining the interaction of both AC and DC sources with a circuit. The circuit is drawn below. Pay careful attention to the arrows on the switches which show which are initially open, and which are initially closed. Assume that the capacitor is initially discharged at 0. All times are in seconds 10 mH 1-Os1-1s!=2s \ t = 5s 400 | 10cos(ox) 50 pF 10 mA At 0, the first switch closes connecting the current...
Prob. 4 (20pts): A radio wave is composed of: CO Vin(t) 10-5 > Sin(nwot) Volt n-1,2,3...
Prob. 4 (20pts): A radio wave is composed of: CO Vin(t) 10-5 > Sin(nwot) Volt n-1,2,3 (a) (3pts) What are the values of the Fourier coefficients for Vin(t), for n-1,2 and:3 (b) (6pts) The following RLC circuit has been constructed to receive CBC Radio One Vancouver at 88.1 MHz. The circuit is then used to power a speaker (represented by a resistor Ri). Derive Vo(t)/Vin(t) (c) (6pts) Determine the frequency where Vo(t) reaches the maximum value. RL=R=100Ω, L=10:1H, C=10 pF...
Problem 4 +5 volts a) Find Ic1, Ic2, and Ic3. You may neglect all b) Find the resistance looking into the base of 10 m c) Find the small signal voltage gain Vout/Vin d) What is the approximate DC val...
Problem 4 +5 volts a) Find Ic1, Ic2, and Ic3. You may neglect all b) Find the resistance looking into the base of 10 m c) Find the small signal voltage gain Vout/Vin d) What is the approximate DC value of Vx? base currents. transistor Q1. (Hint: use the results of (b)!) Q1 +Vin C=infinite 200 for all transistors Beta 50 ohms Vout Q2 Q3 5 volts
Problem 4 +5 volts a) Find Ic1, Ic2, and Ic3. You may neglect...
Assume DC bias current through the resister in parallel with the DC bias current source is...
Assume DC bias current through the resister in parallel with
the DC bias current source is negligible.
Vcc = 15V R1 100k RC 800 C2 1E-5 Rsig C1 100 1E-5 R2 50k RE 400 Vin 4k Note: This circuit is the same common emitter circuit seen in HW18 and HW19 The internal capacitances are CBE = CBCT 10-12 F. You can assume that CCE is zero. a) Approximately, determine the poles associated with each internal capacitor. Use the Miller Theorem...
For a RC circuit if C- 1uF and the DC source voltage is 12 V, design...
For a RC circuit if C- 1uF and the DC source voltage is 12 V, design the resistor R such that the capacitor voltage reaches 10v 15 sec after the switch is closed ? What is the time constant of the resulting circuit? (5 pts) Switch S E, 9 b) How does the capacitive reactance of a 1 micro-farad capacitor and the inductive reactance of a 10 milli-henry inductor change in a AC circuit when the frequency changes from 50...
Buck Converter Question Q3. A Buck converter is used to produce a regulated 10V, 5A DC...
Buck Converter Question
Q3. A Buck converter is used to produce a regulated 10V, 5A DC power supply from a variable DC source with an nominal input voltage of Vin = 20V±5V. The Buck converter switches at 250kHz, and operates entirely in the continuous conduction mode. The output filter capacitance is C1.0uF 3.a. Draw the circuit topology for the Buck converter. Ensure that your circuit includes the input DC source, the output load resistance, the switching devices (i.e. MOSFET and...
QUESTION 3 In the DC-DC buck-boost converter shown in next page assume that all the components...
QUESTION 3 In the DC-DC buck-boost converter shown in next page assume that all the components are ideal and the converter is operating in continuous conduction mode and is in steady-state (a) Derive the conversion ratio of WI - Draw the circuit diagram when the switch is in on and off states. Use small ripple approximation for your analysis Sketch the current through and the voltage across the inductor when the switch is in on and off states. Include all...
EENG22S HOMEWORK III Q1. a) Find the phases corresponding to the following sinusoids (in parts in...
EENG22S HOMEWORK III Q1. a) Find the phases corresponding to the following sinusoids (in parts in and iv. caly one phasor for each case should be calculated) i. 40) 20-50) -10-50) im. 5,0)=15x21-50)-200x2+40) iv. 0-10-20 ) 15cf620) b) Find the sinusoids corresponding to the following phasors i. I--30+40 3rds 1.-30-40 rad's V. li Q2. In the circuit shown, the amplitude of the voltage across the resistor is 5 V in the steady-state. Find the amplitude of the voltage across the...
Ints) A continuous time signal is given below: x(t) = 10 + 3 sin (20t + 3) + 5 cos(40π) This is s...
ints) A continuous time signal is given below: x(t) = 10 + 3 sin (20t + 3) + 5 cos(40π) This is sampled at t = 0.01 n to get a the discrete-time signal x[n], which is then applied to an ideal DAC to obtain a reconstructed continuous time signal y(t). a. i. Determine x[n] and graph its samples, using Matlab, along with the signal x(t) in one plot, plot a few cycles of x(t). ii. Determine the reconstructed signal,...
QUESTION Cyril the Circuit Analyst is examining the interaction of both AC and DC sources with a circuit. The circuit is drawn below. Pay careful attention to the arrows on the switches which show which are initially open, and which are initially closed. Assume that the capacitor is initially discharged at 0. All times are in seconds 10 mH 1-Os1-1s!=2s \ t = 5s 400 | 10cos(ox) 50 pF 10 mA At 0, the first switch closes connecting the current...
Prob. 4 (20pts): A radio wave is composed of: CO Vin(t) 10-5 > Sin(nwot) Volt n-1,2,3 (a) (3pts) What are the values of the Fourier coefficients for Vin(t), for n-1,2 and:3 (b) (6pts) The following RLC circuit has been constructed to receive CBC Radio One Vancouver at 88.1 MHz. The circuit is then used to power a speaker (represented by a resistor Ri). Derive Vo(t)/Vin(t) (c) (6pts) Determine the frequency where Vo(t) reaches the maximum value. RL=R=100Ω, L=10:1H, C=10 pF...
Problem 4 +5 volts a) Find Ic1, Ic2, and Ic3. You may neglect all b) Find the resistance looking into the base of 10 m c) Find the small signal voltage gain Vout/Vin d) What is the approximate DC value of Vx? base currents. transistor Q1. (Hint: use the results of (b)!) Q1 +Vin C=infinite 200 for all transistors Beta 50 ohms Vout Q2 Q3 5 volts
Problem 4 +5 volts a) Find Ic1, Ic2, and Ic3. You may neglect...
Assume DC bias current through the resister in parallel with
the DC bias current source is negligible.
Vcc = 15V R1 100k RC 800 C2 1E-5 Rsig C1 100 1E-5 R2 50k RE 400 Vin 4k Note: This circuit is the same common emitter circuit seen in HW18 and HW19 The internal capacitances are CBE = CBCT 10-12 F. You can assume that CCE is zero. a) Approximately, determine the poles associated with each internal capacitor. Use the Miller Theorem...
For a RC circuit if C- 1uF and the DC source voltage is 12 V, design the resistor R such that the capacitor voltage reaches 10v 15 sec after the switch is closed ? What is the time constant of the resulting circuit? (5 pts) Switch S E, 9 b) How does the capacitive reactance of a 1 micro-farad capacitor and the inductive reactance of a 10 milli-henry inductor change in a AC circuit when the frequency changes from 50...
Buck Converter Question
Q3. A Buck converter is used to produce a regulated 10V, 5A DC power supply from a variable DC source with an nominal input voltage of Vin = 20V±5V. The Buck converter switches at 250kHz, and operates entirely in the continuous conduction mode. The output filter capacitance is C1.0uF 3.a. Draw the circuit topology for the Buck converter. Ensure that your circuit includes the input DC source, the output load resistance, the switching devices (i.e. MOSFET and...
QUESTION 3 In the DC-DC buck-boost converter shown in next page assume that all the components are ideal and the converter is operating in continuous conduction mode and is in steady-state (a) Derive the conversion ratio of WI - Draw the circuit diagram when the switch is in on and off states. Use small ripple approximation for your analysis Sketch the current through and the voltage across the inductor when the switch is in on and off states. Include all...
EENG22S HOMEWORK III Q1. a) Find the phases corresponding to the following sinusoids (in parts in and iv. caly one phasor for each case should be calculated) i. 40) 20-50) -10-50) im. 5,0)=15x21-50)-200x2+40) iv. 0-10-20 ) 15cf620) b) Find the sinusoids corresponding to the following phasors i. I--30+40 3rds 1.-30-40 rad's V. li Q2. In the circuit shown, the amplitude of the voltage across the resistor is 5 V in the steady-state. Find the amplitude of the voltage across the...
ints) A continuous time signal is given below: x(t) = 10 + 3 sin (20t + 3) + 5 cos(40π) This is sampled at t = 0.01 n to get a the discrete-time signal x[n], which is then applied to an ideal DAC to obtain a reconstructed continuous time signal y(t). a. i. Determine x[n] and graph its samples, using Matlab, along with the signal x(t) in one plot, plot a few cycles of x(t). ii. Determine the reconstructed signal,...
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