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Thermally engineered flip-chip (FC) InGaN/GaN well-ordered nanocolumn array light-emitting diodes (LEDs) are demonstrated for the first time. A directional photoluminescence beam profile was observed from the n-side bottom of the GaN nanocolumns, which maintained an optically damage-free periodic arrangement of nanocolumns through the FC process involving Si substrate removal by wet etching. The developed...
Recently, hybrid vehicles (HVs) have become widespread. In the current HVs, a high-voltage (200 V) battery supplies power to the Power Control Unit (PCU) for driving a motor, generator and air conditioner compressor. It is expected that such kinds of power electronic devices will increase in number in the future. We previously proposed a power line communication (PLC) that uses a high-voltage power...
Recently, as hybrid vehicles (HVs) and electric vehicles (EVs) have become widespread, a large number of electronic devices have been incorporated into the vehicles. Thus, there is concern regarding the increasing number of lines and connectors. In HVs and EVs, a high-voltage (200 V) battery is employed. We have studied power line communication (PLC) that uses a high-voltage power line to address...
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