Concept explainers
a.
The expression for the frequency of the oscillation in the terms of C, R and Rv.
a.
Answer to Problem 15.31P
The frequency of oscillation:
Explanation of Solution
Given:
The circuit is given for the phase shift oscillator:
Redrawing the given circuit
Nodal analysis at the node
Nodal analysis at the node
Nodal analysis at the node
Now, solving the equation 2 and 3:
Nodal analysis at the inverting terminal:
From equation (3):
From equation 4:
Substituting values of
Now simplifying more:
Now equating imaginary part to 0:
Now simplifying:
Squaring on the both sides:
Since, the frequency is given as:
Hence, the required frequency of oscillation is
b.
The range in the frequency of the oscillation.
b.
Answer to Problem 15.31P
The range of frequency of oscillation:
Explanation of Solution
Given:
The circuit is given for the phase shift oscillator:
The expression for the frequency of the oscillation is given as:
Substitute the known values in the above expression:
More simplifying:
If,
Substitute the known values:
More simplifying:
Hence, the required range of frequency of oscillation:
Want to see more full solutions like this?
Chapter 15 Solutions
Microelectronics: Circuit Analysis and Design
- Draw a diagram for astable multivibrator using 555 timer. Find the oscillation frequency of the output signal and its duty cycle when the external capacitor is 0.01 uF, the R1 and R2 are 10 kn and 50 kn respectively. While the decoupling capacitor equal 0.1 µF. What happened to the duty cycle when R2 become 1M02?arrow_forwardA chopper has input voltage of 290 and the load resistance as 50. the average load current as 50A. If the non-conducting time of thyristor chopper is 120 µ sec. Calculate the pulse width of output voltage in usec. In case pulse width is 1/3rd for constant frequency operation, find new output voltage. Duty Cycle pulse width of output voltage in sec new output voltagearrow_forwardThe frequency of the Wien bridge oscillator circuit you see in the figure below is f= 15.915 kHz. as it is; a. What is the approximate value of the capacitor ( C ) that should be used? 100k 1 f = 2n R1.C1.R2.C2 741 J+12 Vo 100k 10k 10nF 10karrow_forward
- 2- For the circuit given below : Vin is a sine wave Vinpp=9 V and Vref=2.4 V , Assume Vsat=±12V Name the circuit and draw the input and output waveforms . Vo Vin Vref +arrow_forwardAn RL load (R=0.2 Ohms, L=10 mH) is controlled by a converter. The supply voltage Vs is 600V and the chopper frequency is 200 Hz. The maximum peak to peak ripple current is equal to: Select one: a. 30A b. 55A c. 90A d. 75Aarrow_forward3. Determine Veand Sketch output waveform for the clamper network shown. 20 V Si C Vi R 4 V- | -20 V 4. An RC filter stage (R = 42 0, C = 220 µF) is used to filter a signal of 30 V dc with 6 V rms operating from a full wave rectifier. Calculate the percentage ripple at the output of the RC Section for a 200-mA load. Also calculate the ripple of the filtered signal applied to the RC stage.arrow_forward
- Boost Converter Design A boost converter is required to have an output voltage of 8 V and supply a load current of 1 A. The input voltage varies from 2.7 to 4.2 V. A control circuit adjusts the duty ratio to keep the output voltage constant. Select the switching frequency. Determine a value for the inductor such that the variation in inductor current is no more than 40 percent of the average inductor current for all operating conditions. Determine a value of an ideal capacitor such that the output voltage ripple is no more than 2 percent. Determine the maximum capacitor equivalent series resistance for a 2 percent ripple.arrow_forwardUsing two astable M.V timer .Desine the wave form shown in the figure below with Vcc=9v, C= 1.6234.Mf . then 1-Determine the duty cycle and the frequency at the output of each M.V timer 2- Draw Vc and Vo at each cct. output o/P 9.1 25 27 29.1 38.2 50 52 58.2 msarrow_forwardA boost converter has an input voltage Vb-5V. The average load current is lo-0SA. The switching frequency is 25 kHz. Suppose that a regulator is added (L=0.15 mH and C-0.22 mF) and that the current is continuous. if the average output voltage is Vo =15V, then the ripple current of the inductor delta) is equal to: Select one: O a. None of these O b.0.89A O C. 1.41A O d. 0.56Aarrow_forward
- if you design differentiator to differentiate input signal varies in frequency between 1 KHz and 20 KHz then find. Cutoff frequency=.......... 01000 O2000 03000 O4000arrow_forwardQ5/ Design a Colpitts oscillator as shown in figure below with 10 MHz output frequency. Find the values of C1, C2 and L1, then plot the waveforms at points P1 and P2. +Vcc R1 R4 P2 Cout Q1 Cin P1 R2 Re * Ce 升C1 * C2 Colpitts oscillator www.circuitstoday.com Your answer Q6/ Design a delay circuit using the IC 555, such that the delay between input and output to be 2 minutes. Draw the input/output waveforms. العربية الإنجليزيةarrow_forwardDesign a Cuk converter that has an input of 25V and the output of -30V. The load is 60W. Specify the duty ratio, switching frequency, inductor values and capacitor values. The maximum change in inductor currents must be 20 percent of the average currents. The ripple voltage across capacitor C1 must be less than 5 percent, and the output ripple voltage must be less than 1 percent.arrow_forward
- Introductory Circuit Analysis (13th Edition)Electrical EngineeringISBN:9780133923605Author:Robert L. BoylestadPublisher:PEARSONDelmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage LearningProgrammable Logic ControllersElectrical EngineeringISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
- Fundamentals of Electric CircuitsElectrical EngineeringISBN:9780078028229Author:Charles K Alexander, Matthew SadikuPublisher:McGraw-Hill EducationElectric Circuits. (11th Edition)Electrical EngineeringISBN:9780134746968Author:James W. Nilsson, Susan RiedelPublisher:PEARSONEngineering ElectromagneticsElectrical EngineeringISBN:9780078028151Author:Hayt, William H. (william Hart), Jr, BUCK, John A.Publisher:Mcgraw-hill Education,