Draw a schematic circuit diagram the oscillator circuit (with its differential output) that Raphael can construct using two tuned amplifiers shown above. The output of the oscillator must be clearly labelled.
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- 1. For the phase shift oscillator below, and assuming no loading effects: What is the resonant frequency in kHz? (Please provide derivation). ThanksQ3 2.3mH For the given oscillator circuit, a) State its name. It is C = pF The capacitor is ♦ 555 Timer Harmonic VCO T = μsec Relaxation b) Is it positive or negative feedback It is ✰ feedback 15 negative positive c) Calculate the required capacitor value for a frequency of 550k Hz. and find its time period. The time period is -10 1kQ oscillatorVdc please show the circuit in the figure as a Chaotic Oscillator. Show it using one of the simulation programs. You can make any changes you want. m
- In a Wien bridge oscillator circuit, resistor and capacitor form a series branch and a parallel branch. The value of the resistor is 200 ohm and the value of the capacitor is 10 mF. Determine the frequency of oscillation for the Wien Bridge oscillator circuit.G) build a low-frequency square wave generator using a basic comparator having a frequency of 1kHz and a 30% duty cycle. Explain the principle of operation and the type of feedback of the op-amp. What is the advantage of this circuit? H) Build a phase-shift oscillator using, C=1µF and +10V power supply to produce a 10 kHz sinusoidal waveform. Generate your plots and compare output results. Highlight any discrepancies and discuss what happens if we want to increase the frequency to 100 kHz. I) Build a Colpitts oscillator producing 100kHz Discuss its advantage over RC oscillators. How can you modify the circuit to include a crystal in your circuit? What is a typical application of such an oscillator? Discuss the advantages and disadvantages of crystal oscillators.Explain dual slope ADC and successive approximation ADC with neat block diagram and compare the two approaches
- (a) Explain how a Phase Shift Oscillator differs from Colpitts Oscillator in operation. (b) Design a Wein Bridge Oscillator using Op-Amp with a resonant frequency, fr = 3.2KHZ. Let +Vcc = 15 V, -Vee =-15 V and C= 681F. Draw the circuit diagram and label all components. Use standard resistance values.01) For the Oscillation circuit shown in Figure (1), derive an expression for the frequency of oscillation. RI/RO>>hie). Figure (1) VCC R1 Rc L1 Q3 R2 C2 SLI Rs Cs C1 ww Vod) Design (Find the values of the R₁, R2, and C₁) an astable multivibrator circuit to have an output waveform as shown below in the figure (tH = 375µs and t₁ = 125µs). (Assume C₁ = C₂ and R₁ # R₂) and determine the frequency of oscillation and the duty cycle. R1: R2 C1 Q Vcc 4 555 5 C2 10nF I 8 1 3L -OVO tH = 375.0us tL = 125.0us
- Using the circuit shown in figure 1 below, design a Wien-bridge circuit to oscillate at a frequency of 100 kHz.You are tasked to look for a converter circuit design that has the specifications tabulated in Table I. The aim is to produce an output voltage of 20 V which can be used to drive a load of 120 W. The converter must operate in CCM. Table I: Design Specifications Values 35 V Design Parameters Input voltage Switching frequency Output current ripple Output voltage ripple 60 kHz 5 % 1 % a) Sketch the final converter and label all parameter valuesA single-phase full-wave converter in the figure below is supplied with a 120-V, 60-Hz source. The load is highly inductive and the load current is continuous and free of ripples. The electromotive force is neglected (E 0) and the resistance has a value of R = 10 Q. The delay angle is equal to 31.8°. The average output current is 9.18A and the nth harmonic component is expressed as below. The harmonic factor (known as THD) would be equal to: R 2. vZ.1. Ir = Vo n. T +Yi, = I, E Select one: O a. 58.3% Ob. 48.3% O C. 78.3% Od. 68.3%