Power
IEEE 802.3bt PD controller achieves 99% efficiency
Analog Devices, which recently acquired Linear, has announced the LT4294 IEEE 802.3bt Powered Device (PD) interface controller for applications requiring up to 71W of delivered power. This new Power over Ethernet (PoE) standard – IEEE 802.3bt – increases the power budget to enable new applications and features, while supporting 10 Gigabit Ethernet (10GBASE-T) and maintaining backward compatibility with older IEEE 802.3af and...
Research alliance builds transistor for 5nm technology
IBM, its Research Alliance partners Globalfoundries and Samsung, and equipment suppliers have developed an industry-first process to build silicon nanosheet transistors that will enable 5nm chips. The details of the process will be presented at the 2017 Symposia on VLSI Technology and Circuits conference in Kyoto, Japan. In less than two years since developing a 7nm test node chip with 20 billion transistors, scientists have paved the way for 30 ...
Modular AC/DC power supplies meet medical and broadcast certifications
Modular AC/DC power supplies in the QM series by TDK-Lambda, are low acoustic noise 700 to 1200W supplies carry both medical and industrial safety certifications, and can be used in applications such as BF-rated medical equipment, test and measurement, broadcast, communications and renewable energy.
60V Low IQ synchronous step-down controller operates at 2.25MHz
Recently acquiring Linear Technology Corporation, Analog Devices has now announced the LTC7800, a synchronous step-down DC/DC controller that operates at up to 2.25MHz for reduced circuit size and increased power density. Its low 45ns minimum on-time enables 24VIN to 3.3VOUT conversions while switching at a fixed 2MHz, avoiding critical noise-sensitive frequency bands including AM radio.
Next-gen USB-C power adapters and chargers in integrated controller
Streamlining the design of power adapters, mobile chargers, car chargers and power banks, Cypress Semiconductor has announced the availability of a new USB-C controller with Power Delivery (PD). The EZ-PD CCG3PA controller supports the PD 3.0 standard with programmable power supply (PPS) and Qualcomm’s Quick Charge (QC) 4.0 protocol, which enables new power source product designs to provide an improved fast charging user experience.
Polymer researchers make supercapacitor breakthrough
Researchers in the UK have reported a breakthrough in supercapacitor development with the potential to revolutionise the recharging cycle for battery operated devices. The development, by Augmented Optics, is based on polymers used to make soft contact lenses.
Supercapacitor battery charges in seconds and lasts a week
Breakthroughs in battery technology are becoming increasingly common these days, a manifestation of years of multi-billion dollar R&D investments focused on advanced materials science in hot pursuit of a compact, renewable energy sources by the world’s automobile and electronics makers.
Power supplies win safety standard approval
The CoolX600 Series of 600W convection-cooled modular power supplies from Excelsys Technologies is now approved to IEC 62368-1 – Part 1, the new safety standard for audio, video, information and communication technology equipment. The standard has been created to provide a single approval covering the increasing overlap in design and functionality of professional and domestic equipment.
Hybrid capacitors combine technologies to get the best of both worlds
Supercapacitors are commonly used wherever a quick energy boost is needed, as an alternative to a rechargeable battery. The most prevalent type of supercapacitors, EDLCs (Electrical Double Layer Capacitors), provide thousands or tens of thousands of times the capacitance of normal capacitors while their energy density makes them ten times smaller than batteries (more here about how EDLCs work in detail).
VCA meets ultra-small requirements for precise control
Medical devices are often smaller and lighter in weight than the vast majority of applications that require some type of motion control, simply because they are often portable/mobile, hand-carried or lifted. Internal components needed for these devices are chosen carefully in order to make for the smallest overall device footprint. This poses unique challenges to component manufacturers supplying the medical market.