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- For the filter in the Figure shown: (a) What is the critical frequency? (b) Looking at the critical frequency formula, how would you increase the critical frequency value? (c) What is the voltage gain? (d) Looking at the voltage gain formula, how would you increase the gain?B- An rate. analog signal having single frequency as 3 kHz is sampled with 5 kHz S Describe its frequency spectrum. What will be the output if the sampled signals a passed through a low-pass filter having cutoff frequency at 2.5 kHz? signal. are sent in the analogIn Steady-State Operation o f Buck DC-DC Converter Explain how the switching frequency component is eliminated by the output filter network.
- Sketch the waveforms of the inductor current, the current through the filter capacitor branch, and current through the load resistance. Describe the nature of the current through the equivalent series resistance (ESR) of the capacitor. What is the effect on the shape of the current when the value of the ESR is increased? Explain how the switching frequency component is eliminated by the output filter network. The efficiency of the buck converter decreases with an increase in the load current. Justify What is the effect of increasing switching frequency on the current ripple of the converter?Identify the given statement. FM and PM demodulators can actually reduce noise and increase the signal-to-noise ratio during the demodulation process by using limiters. This is known as the capture effect. Select your answer. The statement has no fixed information. The statement is false. The statement is true. The statement is a case-to-case basis.Explain how the Active Low Pass Filter works in detail, as shown in a drawing
- 13. Pulse-amplitude modulation signals are multiplexed by using:a. subcarriers b. A/D convertersc. bandpass filters d. FET switches 14. A quantizer is a(n)a. multiplexer b. A/D converterc. demultiplexer d. D/A converter 15. Part of the PCM system that prevents aliasing:a. bandpass filter b. sample and hold circuitc. anti-aperture distortion d. both A and Bselect one quickly Mod-N counters can be used for frequency ........... . a) dividing, b) subtracting , c) adding , d) multiplying.How to tell the difference between a open loop transfer function and closed loop transfer function?
- 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 frequencyPlease write introduction about Verification of series RC circuit Note: (please write details by words)FM modulated signal is demodulated using: Select one: O a. Discriminator O b. Discriminator followed by integrator Oc. Costas PLL O d. Carrier reinsertion method