Engineering, 21.07.2020 21:01 itssdaen

Flyback Converters In Problems 8.1 through 8.4, in a Flyback converter, Vin = 30V, N1 = 30 turns, and N2 = 15 turns. The self-inductance of winding. The output voltage is regulated at Vo = 9 V.
1. For the same duty-ratio as in problem 8.1, calculate the critical power which makes this converter operate at the border of incomplete and complete demagnetization modes.
2. Draw the waveforms, similar to those in Problem 8.1, in Problem 8.2.
3. Consider that a Flyback converter is operating in the complete demagnetizing mode. Under this mode of operation, derive the voltage transfer ratio in terms of the transformer magnetizing inductance Lm1 seen from the input-side winding, switching frequency fs the duty-ratio D, and the load resistance R.

Answers: 3

Show answers

Another question on Engineering

Engineering, 03.07.2019 14:10

If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.

Answers: 3

Answer

Engineering, 04.07.2019 18:10

A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.

Answers: 2

Answer

Engineering, 04.07.2019 18:10

Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)

Answers: 3

Answer

Engineering, 04.07.2019 18:10

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0

Answers: 3

Answer

You know the right answer?

Flyback Converters In Problems 8.1 through 8.4, in a Flyback converter, Vin = 30V, N1 = 30 turns, a...

Questions