Graphene photon detector works from infra-red to terahertz
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have developed a graphene optical detector that responds to incident electromagnetic radiation from infra-red to terahertz, and works at room temperature. It has already been used to synchronise two lasers. It consists of graphene on silicon carbide, with inter-digitated electrodes connected to a 1mm diameter gold-over-titanium log-periodic antenna (see photo). ...
Graphene photon detector works from infra-red to terahertz
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have developed a graphene optical detector that responds to incident electromagnetic radiation from infra-red to terahertz, and works at room temperature. It has already been used to synchronise two lasers. It consists of graphene on silicon carbide, with inter-digitated electrodes connected to a 1mm diameter gold-over-titanium log-periodic antenna (see photo). ...
Element14 offers custom Raspberry Pi electronics to OEMs
Element14 has signed deal to provide design and manufacturing bespoke designs based upon Raspberry Pi for OEMs. “There is increased demand from industrial customers around the world who want to use the Raspberry Pi in end product designs,” said Claire Doyle, head of Raspberry Pi at element14. “To support the use of Raspberry Pi in those ...
Element14 offers custom Raspberry Pi electronics to OEMs
Element14 has signed deal to provide design and manufacturing bespoke designs based upon Raspberry Pi for OEMs. “There is increased demand from industrial customers around the world who want to use the Raspberry Pi in end product designs,” said Claire Doyle, head of Raspberry Pi at element14. “To support the use of Raspberry Pi in those ...
Gresham stocks EOS’ smallest 120W PSU
EOS has introduced a 120W open-frame PSU measuring 50 x 75 x 30mm, its smallest yet at 16.94W/in3. The input is universal: 85-264Vac 47-63Hz, and there is a choice of single outputs: 12, 15, 24, 30, 48, or 58Vdc. Available in medical and commercial versions, it can deliver 100W with convection cooling as well as 120W with ...
Mitsubishi claims IGBT power record at 6.5kV
The highest capacity and highest operating temperature in the industry, is what Mitsubishi claimed at the launch of its 6,500V, 1,000A, 150C X-Series IGBT module. Called CM1000HG-130XA, power losses are ~20% down compared with its existing IGBT module (CM750HG-130R) through the use of seventh-generation ‘CSTBT’ chip and ‘RFC’ diode chips, said the firm. Applications are ...
LED Engin claims flux record for RGBW lighting LEDs
Led Engin is claiming a flux density record with a combination of red, green, blue and white die that deliver 3,800 lm from 25 die in a 6.2 x 6.2 mm square on a 12 x 12mm substrate. Power input is 80W, leading to the claim of a “new world record in both flux and ...
Plessey gets business from Circadian lighting
Plessey is to develop packaged LEDs for circadian-modulated LED lighting systems from Massachusetts firm Circadian ZircLight. Developments at Circadian, according to Plessey, build upon a growing body of research showing that exposure to light at night causes a disruption of brain neuroendocrine systems, including melatonin and cortisol rhythms. “We are developing a set of human-centric ...
50 and 75W quarter brick for railways
Minmax is aiming at railway applications with two convection-cooled quarter brick dc-dc converters with EN550155 / IEC60571 railway approvals and EN50121-3-2 railway EMC compliance. MTQZ50 (50W) and MTQZ75 (75W) each come in two basic variants, for 72Vdc (43-101V) and 110Vdc (66-160V) input ranges. Each input range variant then offers four types, with 5, 12, 15, or 24 ...
50 and 75W quarter bricks for railways
Minmax is aiming at railway applications with two convection-cooled quarter brick dc-dc converters with EN550155 / IEC60571 railway approvals and EN50121-3-2 railway EMC compliance. MTQZ50 (50W) and MTQZ75 (75W) each come in two basic variants, for 72Vdc (43-101V) and 110Vdc (66-160V) input ranges. Each input range variant then offers four types, with 5, 12, 15, or 24 ...
