1. Frequency converter: A frequency converter is used to convert high-frequency signals into low-frequency signals. A frequency converter typically consists of a frequency conversion circuit, which achieves the frequency conversion by altering the parameters of the components in the circuit or by controlling the signals.
2. Step-down Transformer: By adding one or more stages of step-down transformers, high-frequency signals can be gradually reduced to the desired low-frequency signals. The winding ratio and core design of each stage transformer can enable the output frequency to be lowered while maintaining efficient energy transmission.
3. Electronic Frequency Conversion Technology: Using an electronic frequency converter to convert the high-frequency alternating current power supply into the desired low-frequency signal. The electronic frequency converter achieves frequency adjustment by adjusting the switching frequency and duty cycle of the switching elements in the power supply.