SF290 series high frequency switching power supply is the latest digital IGBT power supply control board with international advanced level successfully developed by Sinepower. It is an intelligent control system composed of DSP+CPLD processor as the core. It has the characteristics of a single main control board, broadband adaptive (1-50KHZ), anti-voltage fluctuation performance, high power factor, high efficiency and energy saving, and intelligent protection system. The unique QMS quality monitoring function is convenient for users to control product quality and process adjustment.

Sinepower has developed a variety of specifications of high-frequency, super-audio, and medium-frequency high-performance IGBT induction heating power supplies. It is widely used in the fields of automobile, construction machinery, machinery manufacturing, steel metallurgy, petrochemical, microelectronics, textile, military, wind power generation, shipbuilding and so on. Induction heating power supplies are widely used in surface treatment, heat treatment, quenching, tempering, annealing, diathermy, pipe bending, pipeline anticorrosion, quenching and tempering, forging and smelting.

The DSP+CPLD mode is adopted to improve the response speed of the main control, improve the integration of the circuit, and further enhance the stability and anti-interference ability of the motherboard. It adopts the organic combination of touch screen control and direct hardware control. The interface method is improved, and the interface is more concise. The redundant interface that can be replaced is omitted, and the main functions of the previous version are integrated, so that the motherboard can be applied to both small and medium power and high-power equipment. It can be applied to ordinary power supply equipment, and can also be applied to other precision power supply equipment with high power factor requirements.

At the same time, various monitoring and protection functions have been improved, striving to completely eliminate the obstacles to the use of IGBT devices in the field of high-power power supply applications. Transform the digital IGBT control system from theory to practical application, further to stable application, and then to popular application.

◆ Wide frequency range:

1>300Hz~15KHz intermediate frequency;

2>16K-40KHz super audio frequency;

3>40KHz—200KHz high frequency;

4>200KHz----400KHz ultra high frequency.

◆ Frequency automatic tracking:

It can automatically track the resonance frequency of the current popular resonance working mode power supply to ensure that the IGBT always works in the ZCS or ZVS state under any working conditions, so that the IGBT works in the best state, its own power consumption is the smallest, and the overall efficiency is the highest.

◆ Complete fault detection and protection functions:

Various failure causes are displayed on the display; at the same time, it can be indicated by the indicator light, or the synchronous output port can output the relay signal, which is used for the coordination of the external system;

◆ Friendly man-machine interface:

There are many ways for human-computer interaction, such as LED indicator light; digital tube display; text screen display; touch screen display and control; customers can choose according to their needs;

Application areas:

★Induction heating power supply;

★Plating electrolysis power supply;

★Resistance welding inverter welding machine;

★High-power high-voltage generator power supply;

★High-precision controllable electromagnetic heating power supply;

★UHF induction heating power supply;