Seoul Semiconductor announced that it has succeeded in raising the efficiency of the world’s first AC-driven semiconductor lighting source, to 80 lm/W.
The company has made significant strides in a short time to improve and raise the level of performance of Acriche, the world's first semiconductor lighting source that can be directly connected to 110 V or 220 V a.c. outlets without the need for an AC-DC converter.
DC-driven LEDs have many disadvantages. While their lifespans are typically 50 000 to 100 000 hours, the AC-DC converters required for their application to lighting fixtures only have lifespans of 20 000 hours. The need to change the AC-DC converter several times over the life of the LED is a major shortcoming of DC-driven LED technology, and limits its appeal for lighting fixtures. AC-DC converters have several other shortcomings including:
* They add extra cost and require more space.
* Design difficulties to accommodate space and thermal dissipation requirements for DC-LEDs make it less viable as a replacement for conventional incandescent bulbs or building structure lighting.
* Waste materials from the converter causes environmental pollution.
* Since converters have less than 100% efficiency, they add to the energy loss of a system
* When applied to a small or enclosed area the LED and the AC/DC converter interaction can accumulate to massive heat causing a reduction in lifespan.
* Overheating can cause a fire concern which will require safety plans.
PhotoMOS relays Future Electronics
Opto-Electronics
The AQY221R2SX and AQY221R2S PhotoMOS from Panasonic Industry ensures excellent characteristics and high-speed switching performance.
Read more...Mouser now shipping onsemi’s image sensors TRX Electronics
Opto-Electronics
The AR0145CS is a 1/4,3-inch CMOS digital image sensor with a 1280 (H) x 800 (V) active-pixel array that can capture both continuous video and single frames.
Read more...Adaptive optics’ power solution Altron Arrow
Opto-Electronics
Vicor power-dense adaptive optical modules enable colossal telescopes to look into the past for deep space discoveries.
Read more...Ultra-high speed photo detection
Opto-Electronics
TDK Corporation has announced a photo-spintronic conversion element combining optical, electronic, and magnetic elements that can respond at an ultra-high speed of 20 picoseconds.
Read more...High-speed lasers RFiber Solutions
Opto-Electronics
Macom are a high-volume manufacturer of lasers, deploying more than 100 million devices with a reliability of less than 50 FIT and greater than 100 years of wear-out lifetime
Read more...High-performance optical interconnect
Opto-Electronics
STMicroelectronics has unveiled its next generation of proprietary technologies for higher-performing optical interconnect in datacentres and AI clusters.
Read more...MCU for low-power, IoT applications NuVision Electronics
DSP, Micros & Memory
Silicon Labs recently announced the PG26, a general-purpose microcontroller with a dedicated matrix vector processor to enhance AI/ML hardware accelerator speeds.
Read more...ICs vs modules: Understanding the technical trade-offs for IoT applications NuVision Electronics
Editor's Choice DSP, Micros & Memory
As the IoT continues to transform industries, design decisions around wireless connectivity components become increasingly complex with engineers often facing the dilemma of choosing between ICs and wireless modules for their IoT applications.
Read more...Marktech’s latest LEDs and photodiodes NuVision Electronics
Test & Measurement
Designed for precision sensing and emission tasks, Marktech’s optoelectronic lineup serves medical, industrial, aerospace, and environmental markets.
Read more...Why bis means business for LTE Cat 1 IoT connections NuVision Electronics
Editor's Choice Telecoms, Datacoms, Wireless, IoT
Tomaž Petaros, product manager IoT EMEA at Quectel Wireless Solutions explains why the market for Cat 1bis IoT connections is getting busy.
printer friendly version