نتایج جستجو برای: heatsink

تعداد نتایج: 152  

Journal: :iJOE 2015
Mika Maaspuro

Use of a thermoelectric component (TEC) for an LED module cooling will be studied. The issue will be approached by revealing the operation of a thermoelectric component known also as Peltier element, and the main equations describing its behaviour. An experimental setup including an LED module, a TEC, an heatsink and a fan will be build. Heat dissipation and the electrical performance measureme...

1999
Michael Kneissl David P. Bour Chris G. Van de Walle Linda T. Romano John E. Northrup Rose M. Wood Mark Teepe M. Johnson

Room-temperature continuous-wave ~cw! operation is demonstrated with InGaN multiple-quantum-well laser diodes containing an asymmetric waveguide structure. Pulsed threshold current densities as low as 5.2 kA/cm have been obtained for ridge-waveguide laser diodes grown on sapphire substrates by metal-organic chemical vapor deposition. For improved thermal management, the sapphire substrate was t...

Journal: :International Journal of Research in Engineering and Technology 2014

Journal: :IEEE Open Journal of Antennas and Propagation 2022

The Internet of Things (IoT) infrastructure requires billions devices that must ideally be self-powered. Ambient RF and thermal energy have great potential since they are both available continuously throughout the day. An harvester is a rectenna combination receiving antenna rectifier. Thermal harvesters (TEH) typically static type, with fixed hot source at one end cold other. Here, we present ...

Journal: :Electronics 2022

Bond wire lift-off is one of the major failure mechanisms in insulated gate bipolar transistor (IGBT) modules. Detecting fault bond wires important to avoid open-circuit IGBT ensure reliable operation power converters. In this paper, we propose a novel fatigue detection method for IGBT, which could be used normal working conditions. Firstly, investigated dependence on heatsink thermal resistanc...

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