EI 28 transformer is a low frequency transformer. There is no difference between low and high frequency transformers in principle except that different cores are used to achieve different frequency. Low frequency transformers generally use high permeability silicon steel sheet while high frequency transformers ferric core.
EI 28 transformer adopts high-quality silicon steel sheet that features low consumption, high output power, high efficiency, low temperature rise, low noise and stable performance. EI 28 power transformers are mostly applied in the switching power supply, main power transformer.
The size of our EI linear power transformers are from EI-28 to EI-114. We use good silicon sheet and good copper wire.