high frequency transformer leakage inductance should be the primary coil generated by the magnetic field lines can not all through the secondary coil will miss a part, so the leakage of magnetic inductance known as leakage inductance.

The general leakage of the problem with the winding line of the law, the thickness of the interlayer insulation, winding width and many other factors. General measures to reduce leakage are:

1 Each set of windings must be tightened and distributed evenly by high frequency transformer manufacturers

2 leads to the place to be quite satisfactory, as far as possible at right angles, close to the skeleton wall

3 can not be full of a layer of the average to cover a layer full

4 insulation layer to minimize, to meet the pressure requirements and can be

5, such as more space, you can consider the extension of the skeleton, to minimize the thickness of the transformer can not blindly ask the leakage of small, reduce the leakage of the measures tend to make the distribution of capacitance increases, the distribution of high capacitance will also produce inrush current and peak voltage And the pulse at the top of the shock, resulting in increased wear and tear.

Any transformer there is leakage inductance, but the leakage inductance of the switching transformer on the switching power supply performance indicators is particularly important. Due to the existence of switching transformer leakage inductance, when the control switch off the moment will produce back electromotive force, easy to switch device over-voltage breakdown; leakage inductance can also be distributed with the circuit capacitance and transformer coil distributed capacitor oscillation circuit The circuit generates oscillations and radiates radiated energy, causing electromagnetic interference.

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