Accommodating Start-up Peak Power Demands

应用文章

Peak Power Surge Demands

Electromechanical components such as motors, pumps, actuators, and fans are found in many of today’s devices and equipment from various industries ranging from power tools, automotive, disk drives, HVAC, robotics to biomedical devices. Many test applications involving electromechanical components or devices containing large, discharged capacitors have peak power requirement that typically demand a quick high start-up current to boot. This start up current typically only lasts for a tiny fraction of time but may be two or three times higher than its usual steady operating current. Figure 1 below depicts an example of a typical peak power surge waveform.