13.The maximum deviation between actual and ideal converter output after the removal of error is a) Absolute accuracy b) Relative accuracy c) Relative /absolute accuracy d) Linearity 14.A monotonic DAC is one whose analog output increases for a) Decreases in digital input b) An increases in analog input c) An increases in digital input d) Decreases in analog input 15.Which type of switches is not preferable for a simple weighted resistor DAC? a) Bipolar Transistor b) Voltage switches c) MOSFET d) All of the mentioned 16.The inverted R-2R ladder can also be operated in a) Inverted mode b) Current Mode c) Voltage mode d) Non inverted mode 17.Calculate the value of LSB and MSB of a 12-bit DAC for 10v? a) LSB =7.8mv, MSB =5v b) LSB =9.3mv, MSB =5v c) LSB =14.3mv, MSB =5v d) LSB =2.4mv, MSB =5v 18.A 10-bit D/A converter have an output range from 0-9v. Calculate the output voltage produced when the input binary number is 1110001010. a) +7.96v b) -7.96v c) 7.96v d) None of the mentioned

13.The maximum deviation between actual and ideal converter output after the removal of error is a) Absolute accuracy b) Relative accuracy c) Relative /absolute accuracy d) Linearity 14.A monotonic DAC is one whose analog output increases for a) Decreases in digital input b) An increases in analog input c) An increases in digital input d) Decreases in analog input 15.Which type of switches is not preferable for a simple weighted resistor DAC? a) Bipolar Transistor b) Voltage switches c) MOSFET d) All of the mentioned 16.The inverted R-2R ladder can also be operated in a) Inverted mode b) Current Mode c) Voltage mode d) Non inverted mode 17.Calculate the value of LSB and MSB of a 12-bit DAC for 10v? a) LSB =7.8mv, MSB =5v b) LSB =9.3mv, MSB =5v c) LSB =14.3mv, MSB =5v d) LSB =2.4mv, MSB =5v 18.A 10-bit D/A converter have an output range from 0-9v. Calculate the output voltage produced when the input binary number is 1110001010. a) +7.96v b) -7.96v c) 7.96v d) None of the mentioned

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter11: Thermostats, Pressure Switches, And Other Electric Control Devices

Section: Chapter Questions

Problem 23RQ

See similar textbooks

Similar questions

c) A buck converter with constant frequency peak current mode control has Vs = 28V, V = 20V, L = 301uH, fs = 100 kHz. Find the ramp slop for the optimum compensation and the peak compensation voltage. %3D
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 Design Parameters Input voltage Switching frequency Output current ripple Output voltage ripple Values 35 V 60 kHz 5 % 1% a) Sketch the final converter and label all parameter values b) Sketch the final operating waveforms and label all parameter values c) Determine Ve.min and Vemax- Check if the output voltage ripple matches with the design requirement.
Q3. Design a DC/DC buck converter (as shown in Figure Q3) for an input voltage of 12V and an output of 5V at 20A. Assume a switching frequency of 10kHz. Constrain the inductor ripple current to be 10% of the input current and limit the output voltage ripple to 50mVp-p. a) Explain the working mechanism of the converter by sketching equivalent circuit diagrams when the switch Q is ON and OFF, Calculate the duty cycle of the switch. Find the ripple of the inductor current. Calculate the required inductance and capacitance. Sketch the waveform of the output voltage. Is the converter works at continuous conduction mode CCM? If so, give proof of that b) c) d) e) f) g) If the load current varies between 0 and 2A, what is the value of the duty cycle range and at what operating condition? DA L C² Figure Q3 DC/DC buck converter. R
Industrial Electronics If the given types of DC-DC Converter has an input voltage of 25V. The output voltage of each converter using a duty cycle of 0.4s. a.) Buck Converter Vout?b.) Boost Converter Vout?C.)Buck-boost converter Vout?
Input voltage of a boost converter 80 V, output voltage 140 V and switchingits frequency is 20 kHz. The converter efficiency is known to be 95%.a) Continuous conduction (current) in operation when the load resistance changes between 14 - 20ohmThe lowest inductance (L) value and output that should be used to maintain the operation.the peak-to-peak value of the voltage ripple should be used to be 2% of the output voltage.Calculate the capacitor's capacity (C).
Draw the circuit diagram of DC to DC converter using switched capacitor.
18. A dc-dc converter is to be built with the following specifications: Allowed dc input voltage range: +8 V to +18 V +24 V Output average voltage: Output voltage ripple: ±0.06 V maximum at rated load 300 W, resistive ±250 mA maximum at rated load 100 kHz Rated load: Input current ripple: Switching frequency: Common ground between input and output. a. Draw a circuit which can perform this function. b. What is the necessary range of duty ratio for each switch? c. Find circuit part values (R, L, and C) which will meet the stated specifications.
In Steady-State Operation o f Buck DC-DC Converter Explain how the switching frequency component is eliminated by the output filter network.
Design a C converter with an Input Voltage of 36 Volts and an output power of 120 W and an output voltage of 54 Volts (Select Switching Frequency 50 kHz).Also;a) Duty Cycleb) 10% of the average inductor current of the change in inductor currentsFind the L1 and L2 values.c) Output Voltage fluctuation is less than 1% and the voltage above C1Find the C1 and C2 values so that the fluctuation does not exceed 5%.
A 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).
Draw a phase bridge type Full wave uncontrolled AC / DC converter circuit, describe the operating principle, draw input-output voltage curves, and write the integral correlation that gives the average value of the DC output voltage in any t1 instantaneous trigger state
Using the values given in the picture provided for a Boost converter. Please calculate the following Output voltageInductor current ripple (assume it is 20%) Switching frequency Output current Output voltage ripple