- Titles Diode Application Purpose The Purpose Of This Assignment Is To Investigate The Operation Of Several Dc Power Supp 1 (59.17 KiB) Viewed 48 times
- Titles Diode Application Purpose The Purpose Of This Assignment Is To Investigate The Operation Of Several Dc Power Supp 2 (36.21 KiB) Viewed 48 times
- Titles Diode Application Purpose The Purpose Of This Assignment Is To Investigate The Operation Of Several Dc Power Supp 3 (42.91 KiB) Viewed 48 times
- Titles Diode Application Purpose The Purpose Of This Assignment Is To Investigate The Operation Of Several Dc Power Supp 4 (45 KiB) Viewed 48 times
- Titles Diode Application Purpose The Purpose Of This Assignment Is To Investigate The Operation Of Several Dc Power Supp 5 (31.37 KiB) Viewed 48 times
- Titles Diode Application Purpose The Purpose Of This Assignment Is To Investigate The Operation Of Several Dc Power Supp 6 (36.34 KiB) Viewed 48 times
Titles Diode Application Purpose The purpose of this assignment is to investigate the operation of several DC power supply configurations which utilize Half-Wave and Full-Wave Rectifiers. Capacitive filtering and voltage regulation are also covered, including the design of a simple Zener Diode Voltage Regulator. The design of the circuit must Upon completion of this investigation you should be able to: • Recognize various DC power supply topologies utilizing half-wave and full-wave rectifiers. • Choose a filter capacitor to meet ripple voltage specification. • Measure the performance of an unregulated DC power supply. • Design a zener diode voltage regulator to meet given specifications. • Measure the performance of a regulated DC power supply. Instructions PARTI: UNREGULATED DC POWER SUPPLY WITH HALF-WAVE RECTIFIER Half Wave Rectifier (no filter capacitor) 1. Using the transformer box, a diode and a 1k0 resistor, build the half-wave rectifier circuit shown in Fig. 1. The 1k0 resistor comprises the electrical load powered by this circuit. 2. Accurately sketch the input-output waveforms in your assignment sheet and indicate any interesting features of the graphs. Comment on the operation of the circuit. How well does this circuit work as a half-wave rectifier? 1
D: Vio 120Vm60Hz, 0 00000 - -00000 R =1k02 out Fig. 1. Half Wave Rectifier Hall Wave Rectifier (with hiter capacitor) 1. Modify the half wave the rectifier circuit in Fig. 1 by adding a 10 uF filter capacitor, as shown in Fig. 2. D. V. 120V.ms. 60Hz, 0 C =10 uF+ w R=1K12 ة Fig. 2. Half Wave Rectifier with Filter Capacitor. 2. Measure and sketch the input and output voltage waveforms vin and Voit with the filter capacitor in place. Compare the output voltage to the circuit without the filter capacitor. Does it have the same peak value? Explain. How well does this circuit meet the requirements of producing a smooth DC output voltage? What size is the ripple voltage? 3. Change the capacitance value to 100 uF and sketch the output waveform. What is the amplitude of the ripple voltage with the larger capacitor? 4. Determine a capacitance value to reduce the ripple to less than 1Vesk. 2
PART II: UNREGULATED DC POWER SUPPLY WITH FULL-WAVE RECTIFIER. As seen in the previous half-wave circuit, ripple voltage can be reduced by increasing the size of the filter capacitor. Another approach to reduce the ripple is to recharge the capacitor more often. In this part of the assignment, the full-wave rectifier circuit will be used to achieve this result. Full wave rectifier (without filter capacitor) 1. Build the full-wave rectifier circuit shown in Fig. 3. D Vint V. 120v.m. 60Hz, 0 100000 loooo + R. Zvor 1ΚΩs D2 Fig. 3. Full Wave Rectifier 2. Sketch the v, and you waveforms. How do they compare to one another, in terms of shape, amplitude and phase? How does it compare to the output of the unfiltered half-wave rectifier? Full wave rectifier (with filter capacitor 1. Modify the full wave rectifier circuit by adding a 10 pF filter capacitor, as shown in Fig 4. D w Vint Vin 120V.m. 60Hz, 0 C: 10 uF R =1kVout D Fig. 4. Full Wave Rectifier with Filter Capacitor. 2. Sketch the output waveform. How does this waveform compare to the unfiltered output?
3. Determine a capacitance value to reduce the ripple to less than 1V. How does this capacitor value compare to the one you chose for the half-wave circuit (in Fig. 2)? PART II: DC POWER SUPPLY WITH ZENER DIODE REGULATOR In the previous part of this assignment, you saw how ripple can be reduced by increasing the size of the filter capacitor as well as using both phases of the 60Hz sine wave. To achieve even lower ripple (and a better approximation to the ideal of a constant DC voltage), a zener diode voltage regulator can be used Full-Wave Rectifier (with filter capacitor and Zener regulator) 1. Modify the full wave rectifier circuit by adding the zener diode regulator subcircuit as shown in Fig. 5. D w Vint VA 120V.m. 60Hz, 0 한다 C 100 uF D. R=1k13 Vot D2 Fig. 5. Full Wave Rectifier with Zener Diode Regulator. 2. Record each of the waveforms indicated - the input voltages Vat and Via, the capacitor voltage ve and the output voltage, vous. How do these waveforms compare? Briefly explain what is happening to the voltage at each stage of this power supply. Report 1. Utilizing PSPICELTSPICE, construct the circuit architecture. 3. The report should comply with standard format flow described in Fig. 6
DC/TRANSIENT ANALYSIS bample Voc INTRODUCTION -Deerption of the akt in appreciation of the active passive semiconductors Example Ver BOD 1 SENSE Output Rc Vio V. Vine Ac Coupling Capacitor Voc = Ic+Vcs PART II PARTI DC/TRANSIENT ANALYSIS RESULTSIDISCUSSION Varet AC/TRANSIENT VN V VR 89 ANRIR RR RRIR PART III PART IV 16 DISCUSSION - Conclude the results quantitatively and in terms of electronic design sustainability PART V Figure 6
Questions Weightage (%) (Very Poor) (Poor) (Good) The 2 Describe the fundamentals of the use in semiconducting device for rectifier regulator circuit design Explain qualitativelyiquanttatively the architecture of the rectifier regulator with fundamentals of circuit analysis Presented DC/ransient analysis and able to answer the questions through the use of hand analysis and modern CAD tool like PSPICELTSPICE. explanation and analysis of the semiconducting device in use is poorly presented Not able to explain and compare the working principle of the circuit 3 (Satisfactory) The explanation and analysis of the semiconducting device in use is well presented but lacks some detail Partially able to explain and compare the working principle of the circuit lacking some details Partially able to present or construct a justified answer through hand analysis and Cransient analysis of the constructed circuit with lacking details Partially able to present the design in integrated form inline to sustainable electronic design respective to component count and cost with lacking details Not able to present of construct a justified answer through hand analysis and DC transient analysis of the constructed circuit (Excellent) Well presented explanation and analysis of the semiconducting device in use with concrete examples Well presented explanation and comparison on the working principle of the circuit with complete illustration Well presented present of construct a justified answer through hand analysis and DC transient analysis of the constructed circuit Well presented design in an integrated form inline to sustainable electronic design respective to component count and cost 10 5 Present quantitative and qualitative analysis of the design in integrated form with emphasis on sustainable electronic design Not able to present the design in an integrated form in line to sustainable electronic design respective to component count and cost