Lab 3 Superposition

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1. Explain the principle of operation of Figure 1. Derive the equations that govern each block of the circuit.  2.Define the features and technical specifications based on Figure 1 requirement.  3.Design the high voltage side circuits and state equation(s) (that was derived in question 1) to justify the values used in your calculation. Specify practical values or actual component part number with reference from real worldwide components.  4. Design the low voltage side circuits and include equations to justify the values used in your calculation. Specify practical values or actual component part numbers with reference from real worldwide components. Include any heatsink calculation when required to ensure semiconductors do not overheat and keep the junction temperature below 125 degree Celsius.  5. Simulate, using CAD software, the low voltage side circuit to see its regulation. (Submit the simulation file together with the report.) a. Plot the output voltage (with its ripple voltage…

Suppose the three branch currents in this circuit are I₁ = -3 A, I₂ = -18 A, and I3 = -15 A. The voltage drop across each circuit element is as given in the table below. From this information, determine, for each of these circuit elements, (i) whether an active or passive sign convention is being used for that element, (ii) whether that element is absorbing or producing a net (positive) amount of electrical power. In each answer box within the table below, type the correct choice from among the bold-faced words above. V₂ B A B A C D 1₁ A B 1₂ 1₂ + Circuit element Voltage drop Sign convention? Absorbing or producing net electrical power? -9 V -2 V C 9 V -11 V D

2. A bank of nickel-cadmium cells is used as the emergency lighting supply for a hospital. There are 100 cells connected in series and each has an A-hr rating of 120 A-hr. The bank has to be replaced, and the manufacturer is no longer supplying nickel-cadmium cells. It is decided to replace the cells with lead-acid cells. How many lead-acid cells will be required if each has an A-hr rating of 60 A-hr, and how should they be connected?

Refer to the circuit on the right. VEB = 0.7 V, when the BE junction is conducting. VECsat = 0.2 V B Vref = 2.2 V (Use two decimal places.) = ∞ VREF IL +5 V R LOAD Figure 2 a. What should be the value of R in ohms if IL is to be maintained at 146 mA under changing load conditions? b. In order to maintain this load current, what should be the maximum allowable load resistance in ohms?

3. Find the equivalent resistance seen between the indicated nodes, in terms of R. The resistors that are in parallel let them be indicated as ()//() without making the complete calculation. a) Between nodes A and B. b) Between nodes F and G. c) Between nodes B AND E. d) Between nodes D AND F.

2. You are employed in a large industrial plant. A 480-V, 5000-W heater is used to melt lead in a large tank. It has been decided that the heater is not sufficient to raise the temperature of the lead to the desired level. A second 5000-W heater is to be installed on the same circuit. What will be the circuit current after installation of the second heater, and what is the minimum size circuit breaker that can be used if this is a continuous-duty circuit?

In a series circuit, certain general rules may be stated with regard to quantities of voltage, current, resistance, and power. Express these rules, using your own words: "In a series circuit, voltage..." "In a series circuit, current..." "In a series circuit, resistance..." "In a series circuit, power..." For each of these rules, explain why it is true.

For an RTD the relationship between resistance and temperature is a. proportional b. no relation c. equal d. inversely proportional

Using the diagram below and the component photos from page 4, draw the realistic experimental setup you will use in this lab.   Draw the actual apparatus with wires and other electrical elements, connected as they will be on your lab table.  Be sure to label components, junctions, and distances as appropriate.

3. Measure the short circuit current Ise by connecting the ammeterto the A and B ends. Measure the Thévenin resistance RTH by disconnecting the voltage sources and connecting the resistors Rị and R3 to the appropriate nodes. Add the simulation screenshots below.