Choose a TRUE statement regarding lead compensator design via frequency response technique Select one: O a increases the phase margin O b. all statements O c increases bandwidth O d increases gain crossover frequency e. increases the phase margin frequency
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- What is an A/D converter with Voltage-to-Frequency Conversion (VFC)? What is the working principle?Suppose a small AC voltage of amplitude .1Vpp is added to the input voltage of 5V What is the output AC voltage and the small signal voltage gain? Vin Lo VDD=10V R=10 Q2 VoutDefine form factor and peak factor.
- Using any number of Op-Amps, design multistage amplifier to amplify input Ac signal with 0.01V amplitude, the expected output voltage would have 4V amplitude. The input signal frequency = 10 KHz. Assume gain bandwidth product of Op-Amp = 1 MHzc) As given in the figure a clamper circuit with the input signal Vi is proposed to design. Determine the output voltage with the exact solution step by step. Sketch transfer characteristic VO versus Vi.write forward paths and feedback paths.
- A 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%Define,1.Minimum phase function2.Non-minimum phase function3.All pass functionA signal generator having a source resistance of 50 2 is set to generate a 1 kHz sinewave. Open circuit terminal voltage is 10 V peak-to-peak. Connecting a capacitor. across the terminals reduces the voltage to 8 V peak-to-peak. The value of this capacitor is -HF. (Round off to 2 decimal places).
- d- The ripple frequency in the output voltage of single-phase half-controlled bridge AC/DC converter is ................ when a > 60°. 1- 3f, 2- 6f, 3- 2f, 4- f, 5- None of previous. e- The integrator in the firing circuit of 1-phase bridge AC/DC converter is necessary to have firing angle range. 1-0-90°, 2-0-120°, 3-0-180°, 4-0-360°, 5- None of previous. f The harmonic contents in an inverter can be reduced through the use of modified............ PWM. 1- Voltage, 2- Full, 3- Reduced, 4- Commutation, 5- None of previous. g- Continuous current operation in step-down chopper is gained when.............. 1- txT, 1-√ √LC, 2-2√ √LC, 3-0.5√ √LmC, j- The time available to turn-off thyristor in load-commutated chopper is 3- 2E²cf, 4-E²Cf, 5- None of previous. lo 1-2EC lo' 2-50 ECDefine and differentiate the following terms. Also Draw plots where required. You can use different symbols to denote each term a. Gain Cross over Frequency VS.Phase Cross over Frequency b. Phase Margin VS. Gain Margin c. Three Conditions of Stability in terms of phase cross-over frequency and gain-cross over frequency. Three Conditions of Stability in terms of phase margins and gain marginsDetermine Gain margin and phase margin =?