The main transformer switch does not store energy

What is a switch mode power transformer?

Switch mode power transformers (SMPTs) are essential components in modern power supply designs, enabling efficient voltage conversion and electrical isolation in various applications. At Gowanda Electronics, we specialize in providing high-quality switch mode power transformers tailored to meet diverse customer needs.

Does a transformer accumulate energy?

But you don't get something for nothing. Energy is still conserved, so the power in the inbound (electrical) pathway is nearly exactly equal to the power in the outbound (electrical) pathway. The transformer doesn't accumulate energy, having no stores of energy associated with it – the transformer is just a device.

How does a flyback transformer work?

No different than others. A flyback transformer must store energy during the primary 'charging' part of the cycle, in order to release energy into the secondary during the flyback phase. If you are going to buy a lump of magnetic material for your transformer, you will want it to store as much energy as possible.

Why is air gap a must in a flyback transformer?

And when the switch opens this energy is transferred (partially or fully) to the secondary. Without air gap no energy is stored. So an air gap is a must in a flyback transformer. If we are going to wrap all the windings of transformer to the airgap what happens?

Why does a transformer have a gap?

Imagine them with bobbin. A gap is necessary to increase the energy storing capability of the transformer - it tilts the B-H curve - but more importantly, it stabilizes the inductance by making it independent from the material permeability. Yes, you are right @VerbalKint . The main event in the transformer is the airgap.

Is a flyback transformer a switched inductor?

The flyback transformer is a misnomer and ought to be considered as a switched inductor with coupling, as it does store energy unlike an ideal transformer. However the addition of a small air gap allows more current with greater H fields now occupied in the air gap Not all the energy is in the gap but optimally it can be 2x as much as in the core.