Explain flyback converter and draw its waveforms.
Show More Ask Question

1 Answer

Answer :

Flyback converter:

A flyback converter is used for getting DC output and for isolating input mains and output voltage. A flyback converter is like a buck-boost converter with input and output isolated. There are two modes in flyback converter one is continuous mode and second is discontinuous mode. The discontinuous mode flyback converter is used for those applications which require constant current. And continuous mode flyback converter is use for those applications which requires constant voltage.

 Flyback converter consists of one controllable switch like MOSFET. And power transformer, diode, and capacitor. The efficiency of flyback converter is low due to the power transformer. The output inductor is absent in flyback converter which is advantageous for cost and size. During the on time of controllable switch the transformer stores the energy and during the off time transformer transfer the energy to load.

image

image image

image

Like 0 like
Next Page →

Related

Description : Explain buck or step down converter and draw its waveforms.

Answer : Buck converter or Step down converter: Buck converter is a step-down converter. The buck converter step-down the output voltage and step up the output current. Buck converter is a DC to DC converter. ... load. The output voltage is controlled by controlling on period and off period.

Description : Explain the operation of full bridge converters with their different operating modes. State its advantages and disadvantages.

Answer : Full bridge converter: Full bridge converter provides isolation between input and output. Full bridge converter is used for step up or step down the input voltage. Full bridge converter consists of four power semiconductor ... Require filter on both input and output.

Description : Explain buck boost converter and draw its waveforms.

Answer : Buck-Boost converter: The buck-boost converter consists of a transistor for switching purpose, diode, inductor, and capacitor. Buck-boost converter is the combination of the buck converter and boost ... In buck-boost converter both input current and diode current are discontinuous.

Description : Draw circuit diagram of symmetrical configuration of bridge converter.

Answer : circuit diagram of symmetrical configuration of bridge converter

Description : Give the operation of single phase full wave bridge controlled converter with RL load with a neat diagram. Also draw its waveform.

Answer : Single phase fully control bridge converter with RL load: 1. During positive half cycle of input voltage, T1 and T2 are forward biased and during negative half cycle, T3 and T4 are forward biased. Therefore, T1-T2 ... cycle till the firing of next pair of SCRs as shown in the waveform.