development trend of high-frequency switching power supply

 development trend of high-frequency switching power supply.

The application of power electronics technology and a variety of power systems, switching power supply technology are at the core. For large electrolytic plating power, traditional circuit very large and cumbersome, if Gordon switching power supply technology with its size and weight are significant decline, but also greatly improve the power efficiency, save material and reduce costs.

In electric vehicles and frequency transmission, it is inseparable from the switching power supply technology, by changing the electrical frequency switching power supply, so as to achieve near perfect load matching and driver control. High-frequency switching power supply technology, but also a variety of high-power switching power supply (inverter welding machine, communication power, high frequency heating power, laser power, electrically operated power supply, etc.) core technology.

Theoretical analysis and practical experience shows that electrical products transformers, inductors and capacitors the size weight and power is inversely proportional to the square root of frequency. So when we increase the frequency from the frequency 50Hz to 20kHz, increased 400 times, then the weight of electrical equipment in general down to the size-frequency design of 5 ~ l0%. Rectifier inverter welding machine, whether or communications power supply switch mode rectifiers are based on this principle.

Similarly, the traditional "rectification industry" electroplating, electrolysis, power processing, charge, floating charge, closing with a variety of DC electric power can also be transformed according to this principle as the "transformation class switching power supply", the main material can save 90% or higher, also saving 30% or more.

Since the power electronic devices gradually increase the maximum operating frequency, prompting many of the original high-frequency devices using traditional solid-state tubes of, result in significant energy, water and material cost savings, but also reflect the value of technical content.