High frequency switch mode power supply product features
High-frequency switching power supply (also called switching rectifier SMR) operates at high frequency through MOSFET or IGBT. The switching frequency is generally controlled in the range of 50-100kHz to achieve high efficiency and miniaturization. In recent years, the power capacity of switching rectifiers has continued to expand, and the single unit capacity has expanded from 48V/12.5A, 48V/20A to 48V/200A, 48V/400A. High-frequency switching power supply is an upgraded alternative to traditional rectifiers (silicon rectifiers, thyristor rectifiers). High-frequency switching power supplies quickly occupy the market due to their absolute advantages such as ease of use, small size, high efficiency, stable operation, and meticulous coating. It is widely used in electroplating, electrolysis, oxidation and other surface treatment industries, and has received unanimous praise from new and old customers.
This product is precision processed using imported famous brand components and internationally advanced full-bridge inverter converting technology, making the performance of the whole machine stable and the quality more reliable. 2. The whole machine has automatic protection alarm function and soft start function for overvoltage, overcurrent, overtemperature, short circuit and lack of equalization. And can be equipped with time control and computer interface. 3. The DC output waveform is a high-frequency square wave with a ripple coefficient <1 [%], which can increase the number of plating, resist passivation, enhance the gloss of the coating surface and the core degree of the dark corners of the plated parts. It can also reduce the loss of raw materials and meet various special requirements of the electroplating industry. The 4SFG series adopts air-cooling design and is easy to install. And equipped with a remote control device, easy to operate. The machine can be switched on and off with load, reducing the cumbersome adjustment procedures. 5. Small in size and light in weight, the whole machine is manufactured using a full range of anti-corrosion processes, which enhances the anti-corrosion capability of the product and extends its service life. 6. Highly efficient and energy-saving, the working efficiency reaches more than 90[%], and any voltage-to-current ratio is always linearly matched. It eliminates the losses of the voltage regulator and main transformer of the traditional rectifier, saves more than 35% of energy, and greatly reduces the cost of electroplating. It is actually the most sensible choice in the surface treatment industry.
According to the TRC control principle, there are three methods:
1. Pulse Width Modulation (pulseWidthModulation, abbreviated as) has a constant switching period and changes the duty cycle by changing the pulse width. 2. Pulse Frequency Modulation (abbreviated as pFM) has a constant conduction pulse width and changes the duty cycle by changing the switching operating frequency. 3. Hybrid modulation, both the conduction pulse width and the switching operating frequency are not fixed and can change each other. It is a mixture of the above two methods. High-frequency switching power supplies can theoretically reduce switching losses to zero without significantly increasing the switching speed, and the noise is also small.
