
High-efficiency, high-density modules free up space for advanced communications and extend range
High-efficiency class of UAV depend on solar power to meet its long flight time requirements
Industrial solutions and case studies
Case study: Weaving loom
Weaving looms take spun cotton yarns and combine them into a woven fabric. Loom manufacturers are looking for ways of reducing the size and cost of their equipment while improving equipment flexibility, allowing end-users to make quick changes to the cloth’s weight, pattern and style. The key goals were:
Typically hold-up and smoothing of the rectified 3-phase AC input is provided by a large bulk capacitor. By following the rectifier with a wide input range DCM DC-DC converter, this hold-up capacitor was completely eliminated, saving both bulk and cost. Stepper motors require the DC supply to source large pulses of current. A DCM can support large capacitive loads at its output and this capacitor reduced the peak current demands on the converter, and thus its size and cost. The capacitor provided power averaging of the high current pulses to the motor with the converter recharging the capacitor continuously between stepper motor load pulses. Key benefits were:
Wide input range DCM DC-DC converter eliminates hold-up capacitor
The power source to the loom was a 3-phase 115V AC supply, which was rectified to provide 300V DC. By following the rectifier with a wide input range DCM DC-DC converter, the hold-up capacitor was completely eliminated. To analyze this power chain, go to Vicor Whiteboard online tool.
High-efficiency, high-density modules free up space for advanced communications and extend range
High-efficiency class of UAV depend on solar power to meet its long flight time requirements
High-density, high-power modules enable lighter, safer, lower cost tether cables to extend missions
This class of unmanned vehicle is powered and controlled via a tether from a ground-based power source assisting in extended missions
DCM DC-DC converters double the internal bus power and help keep the aircraft as light as possible
High-altitude long-endurance (HALE) UAVs are essentially flying satellites, designed to operate at extremely high altitudes for extended periods
Extending delivery missions and saving space for greater payloads
Delivery UAVs must safely and securely deliver goods to their intended recipients wherever they are located