What Is Flyback Transformer?

A flyback transformer is a coupled inductor with a gapped core. During each cycle, when the input voltage is applied to the primary winding, energy is stored in the gap of the core. It is then transferred to the secondary winding to provide energy to the load. Flyback transformers are used to provide voltage transformation and circuit isolation in flyback converters.

High Frequency Flyback Transformer are the most popular choice for cost-effective, high-efficiency isolated power supply designs up to approximately 120 Watts. They provide circuit isolation, the potential for multiple outputs and the possibility of positive or negative output voltages. They can also be regulated over a wide range of input voltage and load conditions. Because energy is stored in the transformer, the flyback topology does not require a separate output filter inductor like the other isolated topologies. This reduces the component count and simplifies the circuit requirements. This article discusses flyback transformers and applications for which they are best suited.

A high frequency transformer is able to push more power through a smaller space. What does this mean to you? It means that instead of requiring a 25lb iron lump to get 15kV at 10mA you only need a 20z flyback. Size isn’t the only advantage when it comes to HF transformers; efficiency is also improved because there is less material to magnetize.

What are typical flyback transformer applications?

You can use High Frequency Flyback Transformer in many applications, including:

• DC-DC power supplies

• Telecom

• LED Lighting

• Power over Ethernet (PoE)

• Capacitor charging

• Battery charging

• Solar Microinverters

• AC-DC power supplies

High Frequency Flyback Transformers are commonly used for output current below about 10 Amps and output power below about 100 Watts. Sitong offers standard, off-the-shelf flyback transformers with power capabilities ranging from a few Watts to up to around 120 Watts. When higher current and power is required, forward-mode, push-pull, or half-bridge / full-bridge topologies become more efficient alternatives.

Sitong offers a variety of high frequency transformer, customize transformer, standard transformers,vertical transformer and horizontal transformer,and telecom transformer....

A transformer is an electrical device that transfers energy between two or more circuits through electromagnetic induction.A varying current in the transformer's primary winding creates a varying magnetic flux in the core and a varying magnetic field impinging on the secondary winding. This varying magnetic field at the secondary induces a varying electromotive (emf) or voltage in the secondary winding. 

As mention on above that Sitong produces different kind of transformer, such as,high frequency transformer, customize transformer and standard transformers,vertical transformer and horizontal transformer. Please feel free to contact us if you have inquiry.