ssessment,id=215 Converts a physical variable into an electrical signa O converts an analog signal into o...
QUESTION 9 What is the output of a D/A converter? (Chapter 2) O Analog signal O Digital signal O Resistance Triac QUESTION 10 What is the output of an A/D converter? (Chapter 2) O Analog signal ○ Digital signal Resistance Triac
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Please mark only one of the four choices Q1. Controlling the speed of a DC motor by using a micro-controller, is what type of control? b. Digital C. Analog d. All of the above Q2. When current flow is interrupted in a DC motor, which motor property causes a reverse voltage spike? a. Resistance b. Capacitance C. Inductance d. None of the above Q3. Which Arduino internal circuit is used to control motor speed? a. Digital to Analog Converter...
Page 3 of 4 Take Test Unt 1-2Lecare 2。apter 2 (10)-. Pags 4 of 4 What in the output of a Dra convertert (chapter 2) OAnalog signal QUESTION 6 1 paints Save Arer For an 8-bit digital to analog converter, if a digital value of 0000 1000 produces a voltage of 0.625V what is the resolution of DAC? (Chapter 2) O aos O 0078 O 16 O 10 QUESTION 10 What is the output of an ND convertert (Chapter 2...
EXERCISE 4: (30 MARKS) Given the following circuit in figure 3 of a flash analog-to-digital converter where VREF = 2.8V. Op-amp comparators Analog input Priority encoder A A 8. Parallel binary output A A A Sampling A pulses Figure 3 - Circuit of exercise 4 a) Determine the resolution of this converter. b) Determine the maximum error quantization error. c) If the sampling period is 10ms, calculate the number of bits per second bitrate) of the ADC. d) Determine the...
Problem 6 (15 points): The general structure of an N -bit R-2R ladder digital to analog converter (DAC) is shown below, where the voltages at each of the input pins are either 0 or 4 V (for binary "O" and "1", respectively). Assume N- 5. A stream of 5-bit unsigned integers, x[n], are applied to the input of this ladder in binary format (for example, if x13-12, which is B01100 in binary, then a2 and a3 are 4V while ao,...
Communication System
Solve with ALL steps Please
QUESTION 3 Briefly explain the following Analog Pulse Modulation (APM): (i) Pulse Amplitude Modulation (PAM) Pulse Width Modulation (PWM) (iii) Pulse Position Modulation (PPM) (2 marks) (2 marks) (2 marks) b) There are several digital modulations techniques used to modulate digital signal. For a binary data 10111011, sketch the output waveform if the following modulator is used: Amplitude Shift Keying (ASK) (2 marks) Frequency Shift Keying(FSK) (2 marks) (iii) Phase Shift Keying (PSK)...
Questions 4-20.
Questions 4-20.
QUESTION 4 the output becomes The longer a signal is applied to the input of an integrator op amp, the a smaller b. larger QUESTION 5 the output becomes. The faster the voltage applied to the input of a differentiator changes, the a smaller . b. larger QUESTION 6 voltage than for a negative-going signal. A Schmitt trigger switching threshold for a positive-going input signal is at a a lesser . b.greater QUESTION 7 If a...
3. With the aid of a diagram, briefly explain th ing principle of a Successive a) Approximation Analog-to-Digital Converter (ADC) b) An ADC has to be designed to convert voltages in the range from -5 V to +5 V, with a resolution below (better than) 1 mV. What is the minimum number of bits required to meet this design specification? An ADC has to be designed to convert input voltage signals with frequency c) components less than or equal o...
Determine the period number of the ufk-4 cos(K+TT/2) discrete time signal! Select one: O A. 34 O D. Non periodic O E. 34/3 A coil (L 5 mH) is parallel connected to two serially connected resistors (6 kΩ and 4 k2). Calculate the time constant of the above two-pole! Select one: Ο Α.0.5s OC. 5 s Ο D. 0.5 με Ο Ε.0.5 Ms Consider the following sequential network: Z2 Di Ct ㄍ洼 S2 Q2 CLK Choose which function does this...
O bructe CONFIDENTIAL 2 limitatio of Flyb Q2 (a) With the aid of respective topology, point out three (3) basic de-de converters ( 3 marks) (b) Discuss the energy transfer in on each circuit by refering the circuits drawn in Q2(a) (3 marks) (c) Design a boost converter for continuous inductor current and an output nipple voltage of less than 1% that will have an output of 30 V from a 12 V source, Assume the load resistance of 50...