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A device used in DC generators to reverse the connection of the output at each half-cycle...
What in a DC motor reverses the polarity and current each half-cycle? A) solid ring commutator...
What in a DC motor reverses the polarity and current each half-cycle? A) solid ring commutator B) fuse C) a CRT D) a split ring commutator
1. We are given a DC-DC converter as shown below. If the duty cycle is the...
1. We are given a DC-DC converter as shown below. If the duty
cycle is the fraction of each period that the switch is closed:
Please answer parts a & b with detail. This problem will
help me study for my upcoming exam.
1. We are given a DC-DC converter as shown below. If the duty cycle is the fraction of each period that the switch is closed: a. Give the function that describes in terms of duty cycle. What...
one of the following is not essential in generating a dc voltage UNIT 1 OPERATING PRINCIPLES...
one of the following is not essential in generating a dc
voltage
UNIT 1 OPERATING PRINCIPLES OF D 8 ng ACHIEVEMENT REVIEW Select the correct answer for each of the following statements, and pl letter in the space provided. I. A generator ace the ce a. changes electrical energy to mechanical energy. b) changes mechanical energy to electrical energy c. is always self excited. d. is always separately excited. One of the following is not essential in generating a DC...
1. AC generators used in submarines quite often have a frequency of 1,000 Hz and an...
1. AC generators used in submarines quite often have a frequency of 1,000 Hz and an output voltage of 24 volts (r m s ). If this generator is connected to a diode bridge rectifier: (a) Hat I sthe output DC average voltage without a filter capacitor? (b) With capacitors of 10,000 micro farads, but no load, what is the output Vdc capacitor as a filter as, but no load, what is the output VDC? (c) When a resistive load...
#1 ArcSite Electrical, which produces generators, purchases a component that is used in its generators directly from the supplier. The generator production operation requires a constant 1,000 compone...
#1 ArcSite Electrical, which produces generators, purchases a component that is used in its generators directly from the supplier. The generator production operation requires a constant 1,000 components per month. It costs S25 to place each order. The unit cost is S2.50 per component, and the quarterly per-component holding cost is 5% of the value of the component. ArcSite operates 250 working days per year and the component supplier has a lead time of 5 days. (a) What is the...
Q5. 5.a. Sketch the circuit arrangement of a DC-DC boost (step up) converter, clearly labelling each...
Q5. 5.a. Sketch the circuit arrangement of a DC-DC boost (step up) converter, clearly labelling each circuit element [4 тarks] [Refer to lecture notes] Sketch all significant operating waveforms for this converter for continuous conduction conditions over two switching periods, in particular showing 5.b. the voltage across the main switching device and the boost diode. [2 marks the voltage across the inductor [3 тarks] the current flowing through the inductor [3 marks [Refer to lecture notes] 5.c. The DC-DC boost...
You need to design a DC power supply that provides an average DC output voltage of...
You need to design a DC power supply that provides an average DC output voltage of 5V to charge your cellphone. The maximum allowed ripple at the output is ±200 mV. Your cellphone can be modeled as a 1 50Ω load. You have to use a bridge rectifier with four diodes. Note: For calculations, consider constant voltage drop model of the diode with V0 = 0.7V. (a) The charger is designed to use in the US, i.e. transformer primary is...
a) Explain the working of the given full wave rectifier in positive and negative half cycle....
a) Explain the working of the given full wave rectifier in positive and negative half cycle. (1 Mark) 50:10 D1 K Vp(RMS)-110 V OV a 00000 elle IH D2 b) Draw the input and output waveform of the given Full wave rectifier assuming D1 and D2 are germanium diodes. (2 Marks) c) Find DC load Voltage. (1 Mark) d) Find the DC load current if load resistance is 50012. (1 Mark) e) Find Vr(RMS). (1 Mark) f) Find ripple factor....
help!!!! What is the rated velocity and mechanical output power of the rotor? Velocity_1500 Power =...
help!!!!
What is the rated velocity and mechanical output power of the rotor? Velocity_1500 Power = h. r/min 186.4 3. Calculate the rotor slip velocity (in r/min) from procedures 6, 8, 9, 10 and 11. (slip velocity synchronous velocity slip (6) = slip (9) slip (11)-- rotor velocity). (5) r/min slip (8)- r/min r/min slip (10) r/min r/min 6. Couple the DC motor/generator to the wound-rotor motor with the timing belt. Turn on the power supply, Keep the variable output...
AC generators (often called alternators) used in airplanes and submarines are quite common having a frequency...
AC generators (often called alternators) used in airplanes and submarines are quite common having a frequency of 400 HZ and an output voltage of 24 volts (rms). If one of these generators is connected to a diode bridge rectifier with a 4000-μF capacitor. (a) Calculate the load current when a resistive load of 2.4 Ω is connected. (b) Calculate the AC ripple voltage across the above load. (c) Calculate the average current passing through the diodes. (d) Calculate the minimum...
1. We are given a DC-DC converter as shown below. If the duty
cycle is the fraction of each period that the switch is closed:
Please answer parts a & b with detail. This problem will
help me study for my upcoming exam.
1. We are given a DC-DC converter as shown below. If the duty cycle is the fraction of each period that the switch is closed: a. Give the function that describes in terms of duty cycle. What...
one of the following is not essential in generating a dc
voltage
UNIT 1 OPERATING PRINCIPLES OF D 8 ng ACHIEVEMENT REVIEW Select the correct answer for each of the following statements, and pl letter in the space provided. I. A generator ace the ce a. changes electrical energy to mechanical energy. b) changes mechanical energy to electrical energy c. is always self excited. d. is always separately excited. One of the following is not essential in generating a DC...
#1 ArcSite Electrical, which produces generators, purchases a component that is used in its generators directly from the supplier. The generator production operation requires a constant 1,000 components per month. It costs S25 to place each order. The unit cost is S2.50 per component, and the quarterly per-component holding cost is 5% of the value of the component. ArcSite operates 250 working days per year and the component supplier has a lead time of 5 days. (a) What is the...
Q5. 5.a. Sketch the circuit arrangement of a DC-DC boost (step up) converter, clearly labelling each circuit element [4 тarks] [Refer to lecture notes] Sketch all significant operating waveforms for this converter for continuous conduction conditions over two switching periods, in particular showing 5.b. the voltage across the main switching device and the boost diode. [2 marks the voltage across the inductor [3 тarks] the current flowing through the inductor [3 marks [Refer to lecture notes] 5.c. The DC-DC boost...
You need to design a DC power supply that provides an average DC output voltage of 5V to charge your cellphone. The maximum allowed ripple at the output is ±200 mV. Your cellphone can be modeled as a 1 50Ω load. You have to use a bridge rectifier with four diodes. Note: For calculations, consider constant voltage drop model of the diode with V0 = 0.7V. (a) The charger is designed to use in the US, i.e. transformer primary is...
a) Explain the working of the given full wave rectifier in positive and negative half cycle. (1 Mark) 50:10 D1 K Vp(RMS)-110 V OV a 00000 elle IH D2 b) Draw the input and output waveform of the given Full wave rectifier assuming D1 and D2 are germanium diodes. (2 Marks) c) Find DC load Voltage. (1 Mark) d) Find the DC load current if load resistance is 50012. (1 Mark) e) Find Vr(RMS). (1 Mark) f) Find ripple factor....
help!!!!
What is the rated velocity and mechanical output power of the rotor? Velocity_1500 Power = h. r/min 186.4 3. Calculate the rotor slip velocity (in r/min) from procedures 6, 8, 9, 10 and 11. (slip velocity synchronous velocity slip (6) = slip (9) slip (11)-- rotor velocity). (5) r/min slip (8)- r/min r/min slip (10) r/min r/min 6. Couple the DC motor/generator to the wound-rotor motor with the timing belt. Turn on the power supply, Keep the variable output...
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