UPS tracks the input, processing and output of the system, which is a powerful measure to ensure the pure power output of UPS system. Generally, mains input voltage tracking, current tracking and frequency tracking are adopted. There are special voltage and current regulating circuits for current and voltage, such as overvoltage and undervoltage without bypass design. But the most important thing is the frequency tracking design, especially the two OR; When two or more UPS are connected in parallel, it is necessary to make the power frequency of different UPS the same. Therefore, the effect of parallel operation is achieved through dual-channel frequency tracking. If tracking technology is not implemented, parallel operation will not work normally, and sometimes UPS will be damaged or load will be burned because of uneven load distribution. As for business strategy, in fact, these technologies will be applied in most UPS manufacturing enterprises. If you insist, it is to see who has the best application, the lowest cost and the highest stability. There is also a PCF technology, that is, input power regulation technology, which is also the highlight that major manufacturers are vying to boast about.