- Consider the circuit demonstrated in this week’s presentations. With the turns ratio modified to 20:1, calculate the following values of Vs and Is for the given values of RL in the table below:
|
RL |
Calculated Vs |
Calculated Is |
Measured Vs |
Measured Is |
|
0 Ω |
|
|
|
|
|
10 Ω |
|
|
|
|
|
25 Ω |
|
|
|
|
|
50 Ω |
|
|
|
|
|
100 Ω |
|
|
|
|
|
1000 Ω |
|
|
|
|
- Construct the transformer circuit in MultiSIM and complete the table in part 2 with the measured values of Vs and Is for each value of RL. Use the Agilent Digital Multi-meter to take the measurements and capture a screen shot of each measurement.
- Discuss the following:
- Describe the relationship of RL on the secondary voltage.
- Describe the relationship of RL on the secondary current.
- How do the calculated values compare to the measured values?
- How would you go about calculating the transformer power efficiency?
- How would you go about measuring the transformer power efficiency?
- Determine the transformer power efficiency for the circuit in MultiSIM. Include a calculation and a measured value.
