HSI series hybrid inverter 350w~1200w pure sine wave and low frequency
Pulse Transformer:
The so-called pulse transformer is a broadband transformer. For communication transformers, nonlinear distortion is a very important index, so the transformer is required to work at the initial permeability of the magnetic core, so that even if the power is very small like the input transformer, the shape has to be quite large. . In addition to considering the frequency characteristics of the transformer, how to reduce the loss is also a very concerned issue.
For pulse transformers, the problem of waveform transmission is mainly considered. Even if it is also a broadband transformer, as long as the waveform can meet the design requirements, the magnetic core can also work in the nonlinear region. Therefore, its shape can be made much smaller than that of communication transformers. Also, except through high-power pulses, the transmission loss of the transformer is generally not large. Therefore, the size of the magnetic core taken depends on whether the magnetic flux is saturated when the pulse passes through, or whether the temperature rise caused by iron loss exceeds the allowable value. The latest analysis method of today's pulse transformer is to deal with the pulse transformer according to the distributed parameters, which is called the transmission type pulse transformer.
The structure of the pulse transformer is similar to that of the general control transformer. The core part of the pulse transformer is composed of the conductive winding and the magnetic core. However, most pulse transformer cores are made into rings, and the materials are generally permalloy or manganese-zinc-iron-oxide magnetic ceramics, etc.; the windings are bilateral or trilateral, and the third winding is generally set to improve certain performance. , The characteristic of the winding is to change the polarity of the pulse signal at the output end by changing the winding direction of the secondary winding.
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