Lab_9_Tech_63

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San Jose State University *

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Electrical Engineering

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Apr 3, 2024

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Lab Number 9 Tech 63, Analog and Digital Circuits Full-Wave Bridge Rectifier Name: Billy Yan, Anh Vu Objectives: To analyze, simulate, and measure the behavior of a full-wave bridge rectifier. List of Equipment: Solderless Breadboard Power Supply: Keysight EDU36311A, Triple Output, Programmable DC Power Supply Multimeter: Keysight EDU34450A 5½ Digit Digital Multimeter Keysight EDU1052G, InfiniiVision oscilloscope Keysight EDU332105 Arbitrary-Waveform List of Material: Multisim software running on PC Jumper wires pn junction rectifier diode (1N4001) Resistors (various) Capacitors: 0.1 μf, 1 μf, 10 μf, Resistor: 10 kΩ Procedure In this experiment, you will build and test a full-wave bridge rectifier (shown below) by first analyzing the circuit manually then simulating it on the Multisim and finally constructing the circuit on the breadboard and testing it using the function generator and oscilloscope. Study the class notes for the full-wave bridge rectifier to become familiar with the circuit, operation, and formulas needed for this lab.

Part Ia) With Vin set to peak voltage of 17 V (Vp(in) = 17 V), attach a 10 kΩ resistor to the output of the rectifier with no capacitor as shown in the circuit above. Calculate Vp(out), VAVG. See formulas below: V p(out) = V(in) - 1.4 V V (AVG) = 2Vp(out) / π V p(out) = 17V - 1.4V V p(out) = 15.6V V (AVG) = 2(15.6V) / π V (AVG) = 31.2 / π V (AVG) = 9.931V Part Ib) In addition to the 10 kΩ resistor connect a 0.1 μf capacitor in parallel to the resistor as shown and calculate Vr(pp), VDC and the ripple factor percentage. Record results in the table below. See formulas shown below: Vr(pp)= [1/(1/f RLC)]Vp(rect) VDC= [1 - /(1/2f RLC)]Vp(rect) r = V r(pp) / VDC V r(pp) = [1/(1/f RLC)]Vp(rect) V r(pp) = [1/(1/10kHz)(10 kΩ * 0.1 μf)Vp(rect) Part Ic) Change the capacitor in the previous case to 1 μf and recalculate Vr(pp), VDC, and the ripple factor percentage. Record results in the table below. Part Id) Change the capacitor in the previous case to 10 μf and recalculate Vr(pp), VDC, and the ripple factor percentage. Record results in the table below. Part II) Multisim Simulation Part IIa) Simulate the same circuit as in Part I, with a 10 kΩ resistor with no capacitor as shown in the Multisim circuit below, and observe the values of Vp(out), VAVG. For measuring VAVG you may use a DMM set to measure DC value across the load. To measure Vp(out), use the oscilloscope to read the peak output voltage. Part IIb) In addition to the 10 kΩ resistor connect a 0.1 μf capacitor in parallel to the resistor and observe the values of Vr(pp), VDC and the ripple factor percentage. Record results in the table below.

Part IIc) Change the capacitor in the previous case to 1 μf and observe Vr(pp), VDC, and the ripple factor percentage. Record results in the table below. Part IId) Change the capacitor in the previous case to 10 μf and observe Vr(pp), VDC, and the ripple factor percentage. Record results in the table below. Part III) Circuit Construction on the Breadboard Table Vp(out) VAVG Vr(pp) VDC r Hand Calculations Multisim Breadboard %Error Between Hand- Calculations and Breadboard Part IV) Questions Review: In this experiment, you explored the operation of a full-wave bridge rectifier and identified the effect of the capacitor filter on the performance of the rectifier. To test your understanding of the principles covered in this experiment, complete the following statements: 1. A full wave rectifier would rectify ______ positive half-cycle and the negative half-cycle of the input waveform. 2. If one of the diodes of a full wave rectifier fails (opens) then the output waveform would looks like the output of a ________________. 3. When the capacitance of the capacitor filter is increased then the ripple factor percentage would _________. 4. If the load resistor is decreased then the ripple factor percentage would ___________. 5. The output frequency of a full-wave rectifier is ___________ the its input frequency. Lab Report Your lab report should have the following sections: Title heading (including the lab number/title, course name and number, Semester, your name including the names of your team members, and date.

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Objective List of equipment List of Material Hand calculations result typed using MS-Word Equation, experimental results including tabularized data, Screenshot of your Multisim simulation Picture of your hardwired circuit on the breadboard, as well as any other relevant information Percent error calculations Answer to the questions Challenges encountered Conclusion