The low-frequency transformer is used to propagate the signal voltage and signal power, and can also complete the impedance matching between the circuits, which has a blocking effect on the direct current. There is no difference in principle between high frequency transformers and low frequency transformers. However, due to the different frequencies of high and low frequencies, the iron cores used in the transformer are different. Low-frequency transformers generally use high-permeability silicon steel sheets, and high-frequency transformers use high-frequency ferrite cores. Our company produces low-frequency transformers, toroidal transformers, and EI transformers. We can customize products and adjust parameters according to customers' special requirements to meet the different requirements of different customers.