Discuss the importance of form factors in motherboard selection and installation.
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Discuss the importance of form factors in motherboard selection and installation.
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- A single-phase full-wave controlled rectifier using center tap transformer is fed from a 220 V, 50 Hz ac source and it is connected a resistive load R= 20 Q. Determine (a) draw circuit diagram, (b) the output voltage and current, (c) form factor, (d) ripple factor, (e) efficiency. Consider delay angle is a = 45° and turn ratio of transformer is 5:1.help me in these questions pls write the questions with the and by (Computer) 1-Which of the following statements INCORRECTLY explain the label in the figure about LVDT working principles? a. Secondary coils are connected in series in such a way that their output is opposing each other. b. Constant DC voltage input to primary coil. c. Displacement moves ferrous rod from central position. d. The difference of the output voltage between the two secondary voltage.==========2- Explain the working principle of the measurement system in the figure below.i. Force input that is supplied to the sensor is processed to give the response in the form of raw output signal.ii. Signal conditioner manipulated the weak signal to give a conditioned input.iii. Analog or digital indicator display the unit that gives output reading of quantity being measured.iv. Measured value is compared with the input value for further action. a. ii, iii and iv only. b. i, ii and iv only. c. i, ii and…3. A three phase bridge rectifier is supplied by 380 Volt line voltage through a Star/delta connected transformer of which turns ratio is 1. The firing delay angle is a=30° and the load is resistive R=2.2 Ohm. Draw the circuit diagram and mark the followings on this figure : average values of output voltage, the currents and voltages of each transformer leg.
- a) It is important to manage heat dissipation for power control components such as Thyristor. Draw a typical heatsink for a semiconductor power device and the equivalent heat schematic. b) Explain the rate of change of voltage of a thyristor in relation to reverse-biased. c) Draw and explain how a 3-phase fully controlled converter operates.1. What is the equivalent transformer specification if needed to produce an output of 15 volts pulsating dc if it uses a bridge rectifier with no filter capacitor. A. All of these B. 23.58 volts peak C. 16.67 volts rms D. 47.17 volts peak to peaka half-wave rectifier circuit in the figure below has a transformer inserted between the source and the remainder of the circuit. The source is 240 Vrms at 60 Hz, and the load resistor is 20 ohm. (a) Determine the required transformer turns ratio (Ns/Np) so that the average load current is 12 A. (b) Determine the average current in the primary winding of the transformer.
- c) When considering thyristor switching why is In-line fuse protection needed ? d) Why is it common practice to place a capacitor across the output terminals of the rectifier and in parallel with the load ?An ideal single-phase full wave rectifier circuit has a non-inductive resistanceload, negligible tube drops and no transformer losses. What is therectification or conversion efficiency in percent?Suppose you are an electronic circuit designer. How you can use the center-taped step down transformer in bridge rectifier circuit?
- 1. A transformer has a turns ratio of 2:1. What is the peak secondary voltage if 115 V,ms applied to the primary winding? 2. Suppose line voltage may be as low as 105 Vrms or as high as 125 Vmsin a half-wave rectifier. With a 5:1 step-down transformer, what is the minimum peak load voltage? 3. What is the peak load voltage in a full-wave rectifier if the secondary voltage is 20 Vms? 4. We want a peak load voltage of 40 V out of a bridge rectifier. What is the approximate rms value of the secondary voltage? 5. What is the peak load voltage out of a bridge rectifier for a secondary voltage of 12.6 Vrms? (Use second approximation.) 6. If line frequency is 60 Hz, what is the output frequency of a half-wave rectifier? 7. If line frequency is 60 Hz, what is the output frequency of a bridge rectifier? 8. If the load current is 5 mA and the filter is capacitance is 1000 F, what is the peak-to-peak ripple out of a bridge rectifier? 9. The diodes in a bridge rectifier each have a maximum dc…2. A full wave rectifier is using a center tapped step down transformer. The input to the primary of the transformer is 110 volts rms and the turns ratio of the transformer (N1:N2) is 5:1. Load resistance (RL) is 3,900 ohms. No capacitor is connected at the output of the rectifier. Determine the following. g. RMS voltage at the output of the rectifier (across RL) h. Average voltage at the output of the rectifier (across RL) i. Peak current at the loadQ4. A switch-mode power supply is to be designed with the following specifications: Va = 47 V + 10% Vo = 5 V Switching freq. f, = 100 kHz Pioad= 15 – 45 W A forward converter operating in a continuous-conduction mode with a demagnetizing winding (N3=N1) is chosen. Assume all components to be ideal except for the presence of transformer magnetization inductance. a. Calculate N/N1 if this turns ratio is desired to be as small as possible. b. Calculate the minimum value of the filter inductance.