
现在启程登上通往未来的航班,乘坐碳排放更低的 Ampaire 混合动力飞机
Ampaire 正在开发将引领行业走向全电动未来的混合型电动飞机,实现零碳排放和更绿色的未来。
Industrial solutions and case studies
Case study: Portable X-ray system
New solid-state X-ray technology allows medical X-ray scanners to be more portable and battery operated, enabling medical professionals to check patients in any location. Medical X-rays typically need a short pulse of high-intensity radiation energy, which can conveniently be stored and supplied to the X-ray diode by a supercapacitor, in this case charged to 28V. Normally the 28V would be sourced from a number of Li-ion batteries in series. However, in a portable application, this type of battery array and charging system is too large and too heavy. The key goals were:
Use of a bi-directional DC-DC converter reduced the battery array to just one 2.7V Li-ion cell, reducing size and weight significantly compared to a typical boost converter solution. In addition, the bi-directional converter delivered higher efficiencies when charging the supercapacitor from a low voltage source, extending battery life. Key benefits were:
A Vicor VTM, operating in reverse, stepped-up the 2.7V input to provide a nominal 32V rail with an efficiency of more than 94%. For the supercapacitor charging circuit, a ZVS Buck-Boost converter regulated the 32V and provided the necessary current limiting. This architecture was accomplished in a footprint of just 8.6cm2. To analyze this power chain, go to Vicor Whiteboard online tool.
现在启程登上通往未来的航班,乘坐碳排放更低的 Ampaire 混合动力飞机
Ampaire 正在开发将引领行业走向全电动未来的混合型电动飞机,实现零碳排放和更绿色的未来。
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