What is a high-frequency switching power supply? What is its composition and principle?

High-frequency switching power supply, its English name is Switching Mode Power Supply, also known as switching power supply, switching converter and switching rectifier SMR

1, What is a high-frequency switching power supply?

High-frequency switching power supply, its English name is Switching Mode Power Supply, also known as switching power supply, switching converter and switching rectifier SMR, it is a high-frequency power conversion device. Its function is to convert a quasi-voltage into the voltage or current required by the user through different forms of architecture. It mainly works through the high frequency of MOSFETs or IGBTs, and the switching frequency is generally controlled in the range of 50-100kHz to achieve high efficiency and miniaturization.

2. The composition principle of high-frequency switching power supply

The high-frequency switching power supply is mainly composed of four parts: the main circuit, the control circuit, the detection circuit and the auxiliary power supply.

The main circuit, mainly including input filter, rectification and filtering, inverter and output rectification and filtering, can finally provide a stable and reliable DC power supply.

The control circuit, which can change its frequency or pulse width by controlling the inverter to achieve stable output, can also provide control circuits to carry out various protection measures for the whole machine.

The detection circuit provides a variety of display instrument data in addition to providing various parameters in operation in the protection circuit.

Auxiliary power supply, providing power supply for different requirements of all single circuits.

3. High-frequency switching power supply - voltage stabilization principle

The main circuit of the high-frequency switching power supply will filter the clutter existing in the power grid, and also hinder the clutter generated by the machine from feeding back to the public power grid, and then the AC power supply of the power grid will be directly rectified into a smoother direct current for the next level of conversion, and then the rectified DC power will be changed to high-frequency alternating current, if different frequencies and bandwidths are required, the inverter can be controlled by the control circuit to obtain, and finally according to the load needs, a stable and reliable DC power supply can be provided, and the control circuit can carry out various protection measures for the whole machine.

With the continuous improvement and development of electroplating technology, the high-frequency switching power supply produced by Karry continues to improve the stability and product quality of the product, and the perfect combination of electrochemistry to better serve the surface treatment industry. Lay a solid foundation for you to create high-quality and high-quality electroplated workpieces.