【摘要】 分析了引起UPS切换的几种市电电源异常现象;介绍了一种UPS快速切换技术。该技术采用硬件检测和软件判定相结合的方法,充分发挥了硬件检测的快速性和软件复杂逻辑处理能力的优点,能在几种市电异常时实现快速、可靠地切换。实验证明,该切换技术具有切换迅速可靠、切换逻辑软件可编程等优点。更多还原

【Abstract】 Several kinds of utility failures causing UPS to transit are analyzed and a fast UPS transition technique is introduced.The introduced UPS transition technique utilizes the method of the combination of software judgment and hardware sensing,and is possessed of the advantage of both the rapidity of hardware sensing of the utility failure and the ability of software managing with complex logical problems.It makes the UPS to transit rapidly and reliably.Experiments results are given to show the proposed technique.更多还原