Skip to main content

Question: Q1 a. Sketch the static characteristics of a diode. (6 marks) b. An AC voltage source V drives a transformer with centre tap second indin gs connected to two rectifiers is shown in the following diagram. The load has constant current Io. Assume that when the diode conducts the forward voltage drop is Ve d V Vmsnot. The turns ratio is N: 1:1. Sketch the current waveform through one of the diodes. (6 marks) c. Write down an equation for efficiency of a power converter in terms of output power and converter losses (2 marks) d. Given the following parameters, calculate the efficiency of the power converter. Va = 310 V ω-2π50 forward voltage drop of the diodes VF = 0.7 V Transformer turns ratio = 10: 1 : 1 load current = 10 A Assume that the transformer has no loss and converter losses come from the diodes only. Also assume the diode voltage drop does not change with current. State your assumption if there is any 6 marks)


ANSWER

Comments

  1. UnknownMarch 5, 2019 at 10:09 AM

    https://www.chegg.com/homework-help/questions-and-answers/differential-brake-band-trigonometry-question-find-distances-bottom-2597-8810-7939--q11904593

    ReplyDelete
  2. AishaMarch 12, 2019 at 7:01 AM

    https://www.chegg.com/homework-help/questions-and-answers/describe-difference-objects-values-using-terms-equivalent-identical-llustrate-difference-u-q35630655

    ReplyDelete
  3. UnknownMarch 13, 2019 at 8:44 PM

    https://www.chegg.com/homework-help/questions-and-answers/7-would-considered-investment-context-national-income-accounting-according-economists--pur-q17081067

    ReplyDelete

Post a Comment

Popular posts from this blog

Osmosis Data Sheet

Data Sheet: Activity - Osmosis Name Course Date Activity Data Code       Procedure I -Test Solution 1: Water Complete the tablesand questions below using your data and information found under the Background tab Data Table I Note: Difference in Final Volumes = Final Volume of Test Sol - Final Volume of Water Trial Starting Volume of Test Solution (L) Starting Volume of Water (L) Final Volume of Test Solution (L) Final Volume of Water (L) Difference in Final Volumes (L) 1 1.28 1.75 1.51 1.52 -0.01 2 1.28 2.00 1.64 1.64 0 Observations and Questions [1] Given that the final heights (and volumes) are the same for the water and test solution, what can you...
2 comments
Read more

Pseudocode - painting a wall

My pseudocode from Module Two: Pseudocode – Painting a Wall MEASURE wall-length MEASURE wall width CALCULATE wall area DETERMINE amount of paint needed for wall-size PURCHASE desired paint and tools (brushes, rollers, pan, etc.) PREPARE work area and tools START painting wall END when painting is complete CLEAN work area and tools STORE tools and any leftover pa​‌‌‌‌‌‌‍‍‍‌‌‍‍‍‌‍‌‍‍​int
Post a Comment
Read more
Simple Computer Science Questions Question 2 ANSWER Match the following a - 4 b - 10 c - 8 d - 6 e - 9 f - 1 g - 2 h - 7 i - 3 j - 5
Post a Comment
Read more