1.The voltage regulator adopts an adjustable autotransformer structure, and the coil is wound on the toroidal core. The brush is close to the polished surface of the coil under the action of the spring pressure, and the rotating shaft drives the brush holder to make the brush slide along the surface of the coil, changing the brush. The contact position, that is, the winding ratio of the primary and secondary coils, is such that the output voltage is smoothly and steplessly controlled.
2.The product has no distortion, small size, light weight, light weight, high efficiency, convenient operation, reliable, long-term operation and so on.