How is the high frequency transformer wound ?

- Aug 07, 2018-

High frequency inverters in the best use of high frequency transformers stratified, section winding method (that is, the three engineers often say

The main purpose of this method is to reduce high frequency leakage and distribution capacitance.


Winding the first section of the secondary high voltage winding. Connect the lead wire (head) well, first use 5 and winding the secondary high voltage winding 25T, the wire should not be cut off, and then

Cover one layer of insulating paper (the insulation paper should be thin, just cover one layer; otherwise, as the following insulation paper will be used for many times, it may not be able to hold the whole package)

, half of the primary low voltage winding is prepared.


String is half of the primary low-voltage winding. The outgoing line (head) is reserved. Note that it is reserved, because it needs to be unified and connected before connecting the outgoing line.

The same is true for the following initial use of the word "reserved". Use 19 roots and wrap around 3T, reserve the center tap, and then wrap around 3T, reserve the lead line (tail) and line

Shear. There is also a technique here for specific operation, that is, because there are many stocks, it is not convenient for 19 threads to be wound at one time and the torque tension is also large.

You can do it multiple times, for example, here you can do it three times, 6 to 7 strands of thread at a time, so that it can be wound more smoothly.

The tail is put together and wound in the same direction. Then a layer of insulating paper is wrapped to prepare the second section of the secondary high voltage winding.

Torque the second section of the secondary high voltage winding

The winding wires shall not touch each other. If necessary, they can be separated by insulating paper.) and the winding lines shall be 25T

Cut off. Wrap another layer of insulation paper around the other half of the primary low voltage winding.


The other half of the primary low-voltage winding is detoured. In the same way as before, the primary low-voltage winding should be wound in the same way as before

Half of the same. Cut the same wire and wrap an insulating paper around the third section of the secondary high voltage winding.

The third section of the sub-high voltage winding is wound. The remaining sub-high voltage winding of 25T is completed by the method of step and reminder

The direction is the same as the preceding two sections. Connect the lead wire (tail) and cut the thread. At this point, all the winding is finished.

Bearing incorporates primary low voltage winding. Connect the first two low voltage winding, head to head, center tap to center tap

Connect and connect the tail and tail (so that the winding turns are still 3T+3T, while the total parallel lines are 38), connect the lead wire well, that is, get the primary low voltage

The end, middle and end of the winding lead ends. Finally, a layer of insulation tape is wrapped to complete the production of the wire wrap.