Analysis on some common problems of transformer winding, characteristic and so on

First, the transformer production, the coil winding machine and manual winding what are the advantages and disadvantages?

The advantages of winding machine winding of transformer is high efficiency and beautiful appearance, but the transformer winding tall small holes is more trouble, but in the process of insulation reliability as manual winding in place. Manual winding can be magnetic leakage transformer to be very small, which in the process of winding the coil number at any time to adjust the layout, low efficiency, slow speed is the only drawback of pure hand wound, mass production generally choose winding machine winding.

Two, ring, EI type, R type, C type of power transformer which is the best?

They each have their own advantages and disadvantages, and no one is best to say, so strictly speaking, what kind of transformers can do the best. Structurally, the ring can be the minimum leakage, but the sound sense of type EI can do better if density sense. Single magnetic saturation, EI type than the ring, but the efficiency is better than EI type ring. However, the key problem is that you can avoid weaknesses and their advantages into full play, and this is the most fundamental to transformer.

The imported amplifier in the current application of transformer is still the mainstream, it illustrates a problem. Evaluation on the transformer fancier to be objective and fair, you can't take a not do something for reference and say it is not good. Some people say that the annular transformer magnetic saturation, why don't you go to think of a way to do it is not easy to magnetic saturation? Originally through technical means can be done at this point. Not to work hard or blindly in order to save costs, then it is certainly easy to magnetic saturation. Similarly, as long as you carefully produced, EI type transformer efficiency is also able to achieve very high.

The quality of transformer has a great influence on the sound, because the transmission power of the transformer is closely related to the core and the coil, and the transmission rate of the transformer plays a decisive role in the sound. Like EI transformer, people usually feel that it is relatively thick, high frequency is relatively slim, why? Because it is relatively slow transmission speed. While the ring? Low frequency and high frequency in the more fierce, a little weaker, why? Because its transmission speed is faster, but if change through effective structure, you can put the ring and EI are perfect, so the key is to look at what you do.

But at least it can be certain that the R transformer is not too easy to do. Use it to a current preamp and CD player power can also be used to do after class, if the power amplifier, a more serious defect. Because it's not easy to form R type transformer itself, while the ring and EI is relatively easy to achieve sound to change the structure of the. The R type power amplifier power transformer production, usually sounds very compact and lack of Reiki, low frequency is often not bounce is hard.

Three, transformer iron core silicon steel sheet with the bigger the better?

No, the silicon content of silicon steel sheet size effect on the quality of the transformer is not large, and oriented and non oriented and core models have relationship. Second, even if the same model of the iron core if you process is not good, the quality of the difference is very large, and sometimes even as high as forty or fifty of the difference.

The core and the same material in the heat treatment line and winding process is important, good heat treatment only 10mA excitation current can be very small in order to reach 15000 Gauss, the exciting current and the heat treatment is not good is likely to reach the corresponding 50mA 15000 Gauss, between the two disparities is great the. From a professional point of view to determine the core of good and bad, mainly through the excitation current, iron loss, saturation parameters of several indicators for comprehensive evaluation.