Communication protocols and protocol stacks like peripheral component interconnect express (PCIe), compute express link (CXL), Aeronautical Radio, Inc. 818 (ARINC 818), Joint Electron Device Engineering Council (JEDEC) standard 204/B/C/D (JESD204B/C/D), Fibre Channel and so on, are formal descriptions of digital message formats and rules. They are separate from the physical transport layer, although some protocols […]
How can you minimize BERs?
Bit error ratios (BERs, sometimes called bit error rates) measure the ratio of incorrectly received bits in a data stream to the total number of bits in the stream. BERs are an unfortunate fact of life for digital and communication system designers and can be minimized and controlled, but not eliminated. BERs are related to […]
How can TinyML support sustainability on the edge?
Sustainability can be in the eye of the beholder. That’s certainly true for the question of how can TinyML (tiny machine learning) support sustainability on the edge? From a societal perspective, The United Nations Educational, Scientific and Cultural Organization (UNESCO) believes that TinyML can help to achieve its Sustainable Development Goals (SDGs). From an engineering […]
How do consumer and industrial Li batteries differ?
Consumer (sometimes referred to as commercial) lithium (Li) batteries offer better performance compared with lower-cost alkaline, nickel-cadmium (NiCd), or nickel metal hydride (NiMH) alternatives, but industrial Li batteries are even higher in performance. This FAQ looks at examples of chemistries for primary and secondary Li batteries in consumer and industrial devices including the use of…
What’s different about industrial and medical Li batteries?
In many cases, the difference is related to regulatory demands versus environmental demands. Both segments require high levels of safety and performance from Li batteries. Medical applications have numerous strict regulatory and certification requirements while industrial systems tend to have more challenging environmental performance needs. This FAQ looks at the extensive standards defined for medical…
How do the six most common Li primary chemistries compare?
Rechargeable lithium-ion batteries get a lot of headlines, but primary Li battery chemistries are the workhorses in a large number of industrial, medical, consumer, and other applications. This article looks at the performance tradeoffs and typical applications for the six most common Li primary chemistries including LiCFX (lithium poly carbon monofluoride) LiMN02 (lithium manganese dioxide),…
How can primary Li batteries contribute to sustainability?
A lot has been written regarding rechargeable lithium (LI) batteries and sustainability. Primary (non-rechargeable) Li batteries can also make major contributions to improving the sustainability of the systems where they are used. This FAQ reviews some of the factors related to the sustainability of primary Li batteries including key performance indicators (KPIs), downcycling versus recycling,…
When to use energy harvesting and when to use long-life batteries
Energy harvesting (EH) can be an attractive way to power wireless internet of things (IoT) and other small devices. EH can be combined with rechargeable batteries, capacitors, or supercapacitors to provide enhanced performance. Depending on the circumstances, primary batteries can provide a more reliable and even lower-cost option. This FAQ looks at ways to classify…
Why self-discharge is important in batteries
Self-discharge refers to the declining state of charge of a battery while the battery is not being used. In most instances, self-discharge cannot be eliminated but needs to be managed. Too high a self-discharge rate can limit the potential applications for a battery. Depending on the battery chemistry and construction, there can be several causes…
What’s special about connectors in quantum computers?
Quantum computers are expected to solve some of the world’s most complex problems. Fabricating interconnects is one of the most complex problems when building quantum computers. Quantum computers need connectors that can withstand cryogenic temperatures, with non-magnetic construction, that operate at microwave frequencies with low losses to reduce heating and improve data transfer. High-density hermetically […]
