Oxford PV is claiming an efficiency record for solar panels based on perovskite-on-silicon tandem photovoltaic cells. “Produced in collaboration with the Fraunhofer Institute for Solar Energy Systems, the panel achieved a record 25% conversion efficiency, a significant increase on the more typical 24% efficiency of commercial modules,” according to the company. The panel was made using equipment and expertise at ...
Power supply firm CUI has created a chart which clarifies forthcoming US and EU power adapter regulations – DoE Level VI and CoC Tier 2. “When the United States Department of Energy (DoE) implemented its Level VI standard in February 2016, most OEMs were forced to update their designs to meet these requirements. Now with even stricter regulations proposed to ...
Osram Opto has cut led light output droop by optimising its epitaxial processes. At a current density of 3A/mm², quantum efficiency of the has been increased 7.5%. Under laboratory conditions and driven at 3A/mm2, 740 lm typical luminous flux was produced from QFN LED package (6,200K, Cx 0.319, Cy 0.323, single-chip LDxyz). At low current densities (0.35A/mm2), the increase was around ...
Osram Opto is claiming “one of the best values in the world in terms of forward voltage for blue high-current chips” following improvements in epitaxy, leading to up to 8% efficiency improvement. Some devices have been getting the new die since August. Its blue Oslon Square now has a typical forward voltage of 2.87V instead of the data sheet value ...
According to Osram Opto, its blue die are approaching the theoretical limit for forward voltage. Having shaved 20mV off from production leds last summer “In the laboratory we have already succeeded in further reducing the forward voltage by as much as 30mV”, said Osram scientist Dr Joachim Hertkorn. “Any further reductions in forward voltage will then only be marginal owing ...
Power factor correction (PFC) can be more efficient at partial loads, according to UK power supply firm TDK-Lambda, which has patented its technique. PFC is a technique employed in mains power supplies to prevent them injecting harmonic distortion into the mains (see box below). However, “the switching loss in a PFC circuit adversely affects efficiency”, said TDK, which has focused ...
German solar module maker Schott has demonstrated 20.2% efficiency from a solar cell compatible with mass-production, claiming this as a record. "We did not apply any fancy stuff from the lab...
Cuauhtemoc Medina Rimoldi, Global Product Launch Marketer for Freescale, who focuses on the medical segment, considers how best to achieve efficiencies with glucometers, medical devices for measuring levels of glucose concentration in the blood.
Alexis Debray, an engineer at Canon in Tokyo, Japan, has created an appendage that mimics the astonishing dexterity of the chameleon's tongue. The firm is always looking for ways to make more efficient production-line robots, he says, and a device that mimics the chameleon's tongue may hold promise for making delicate items like cameras.
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