I have been working as a brushless motor drive board for more than ten years, and I have come into contact with many manufacturers who make fan products. They generally encounter a headache: to adapt the same fan product to different voltage levels, we must either prepare two schemes or compromise on performance. In fact, the high and low voltage conversion control board of brushless fan is specially designed to solve this pain point. Simply put, a board can be compatible with high and low voltage inputs, so that the fan can work stably in different voltage environments.

I have been in the business for more than ten years, and I have been in contact with various manufacturers of fan equipment. What worries me is that many customers spend a lot of money to make products, and because the monitoring board is wrong, it will go wrong in the hands of end users every three days. Some fans are blocked for a few seconds, and the drive tube is directly burned through, and the whole equipment is scrapped; Some boards are out of control in temperature rise, and components begin to age and fail in less than half a year, and after-sales returns are piled up in warehouses. In the final analysis, the source of these problems is one: the reliable source factory of low-voltage operation monitoring board for brushless fans has not been found, and the protection mechanism and quality control of the board are simply not enough.

I have been working as a brushless fan drive board for more than ten years, and I have contacted many customers who are looking for customized solutions for the control board. Many enterprises are easy to fall into a misunderstanding when selecting models-they only stare at the parameter table, but ignore the matching degree of actual working conditions. To put it simply, it is a question of "whether it can be used directly or not".

I have been working as a brushless fan control board for more than ten years, and I have been exposed to many cases of equipment burning due to the failure of overcurrent protection. In this field, it seems that the threshold for suppliers of over-current protection plates for high-voltage brushless fans is not high, and there are actually few suppliers who can really make wide-temperature adaptability and multi-protocol communication solid.

To put it simply, people who make industrial fan equipment should have encountered this situation-as soon as the equipment is powered on, the current surges at the moment when the fan is started, and the control panel can't bear to burn directly, or the startup fails and restarts repeatedly, and the whole production line stops. This kind of "hard injury" caused by high-voltage startup is particularly common in industrial fans with power above 300W W. Once the fans lie prone in the scenes of workshop ventilation and waste gas treatment, the impact will be great.

I have been working as a brushless fan power board for more than ten years, and I have seen too many customers suffer because of choosing the wrong board. Some of them broke down within a few months after being bought and installed, some of them frequently tripped in high-temperature workshops, and some of them stopped the whole production line because of inadequate protection. In the final analysis, these problems are all due to the failure to choose the right industrial power board.

Anyone who has done the fan drive scheme knows that the headache of selecting the control panel is not how many functions there are, but whether the equipment can be protected at a critical moment. I have contacted many customers, and the fan burned and the drive board exploded. In the final analysis, there is only one reason-the protection is not in place.

Engineers who have done the brushless fan drive scheme know that the unstable fan speed is a headache. When the load changes, the rotating speed will fluctuate up and down, which will affect the performance of the equipment and cause the whole system to stop. To put it simply, the fan is "disobedient". PID speed regulation combined with closed-loop control is the core means to "stabilize" the fan.

In recent years, smart home appliances have become more and more sophisticated, and the internal space is inch by inch. The selection of cooling fans has become a headache for many product managers. To put it simply, choosing a fan is not to stare at the parameters to see who is big or small, but to see whether it can match your equipment. Simply put, it is "whether it can be used directly or not." I have met many customers and asked them, why are some fans buzzing and some can hardly hear the sound with the same air volume index? In fact, behind this, the difference in the scheme of the drive board is the key.