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A 189 Year Old Limitation on Inductor Size Has Been Broken (2018)
51–55 of 55 posts
Re: A 189 Year Old Limitation on Inductor Size Has Been Broken (2018)
#52Whenever there is a new hyped tech, it's always using graphene. But how close are we to actually deploying graphene-based components to mass market?
Re: A 189 Year Old Limitation on Inductor Size Has Been Broken (2018)
#53So many hyperbolic claims that boil down to a moderate 33% area benefit with very little data about mundane things like long-term reliability, or process variation. Every time an article mentions some buzzword like 'graphene', it turns out to be just a load of baloney. Graphene can do everything but leave the lab.
Graphene already has left the lab, it's being used in some high-end batteries.
No, that's just some marketing verbiage with no real physical correspondence.
Re: A 189 Year Old Limitation on Inductor Size Has Been Broken (2018)
#54The medium article links to a nature article which explains in depth: https://www.nature.com/articles/s41928-017-0010-z This seems like an interesting development, but the performance gain appears to be limited to low value inductors in the 10's of GHz range. Those inductors are already very small and easily integrated on RF ICs. If you want to miniaturize electronics you need to miniaturize the inductors used in pow…
> If you want to miniaturize electronics you need to miniaturize the inductors used in power conversion Hasn't that problem mostly been solved already with switch mode power supplies that are pretty small. With most personal electronics being battery powered these days I'm curious where you see a real need for further reduction in the size of power converters. In other words what technologies or devices are currently…
“Hasn't that problem mostly been solved already with switch mode power supplies that are pretty small“
It would still be useful to make them even smaller. For example, it’s often not possible to use all sockets in a power strip because of the size of power converters. Also, such smaller converters typically are a bit of a hassle to toss into a bag because of their somewhat awkward shape (especially if all other things in the bag are pencil-shoes or flat slates (laptop, tablet, notebook)
A transformer that fits inside an AC power plug would solve both problems.
I think that, _if_ we could build that, most people would start calling the current tiny converters bulky.
Re: A 189 Year Old Limitation on Inductor Size Has Been Broken (2018)
#55It's definitely a great development, but I don't understand the "trillion dollar" comment at the beginning. Near as I can tell, inductors are about a $4-5 billion dollar market [0] I know it will help miniaturization, but it seems like devices most desirable for miniaturization are already most limited by other conditions like the battery in smart phones and laptops. Larger inductors seem to appear mostly in things l…
"With connected devices and the Internet of Things poised to become a multi-trillion dollar enterprise by the mid-2020s, this new type of inductor could be exactly the kind of revolution the burgeoning industry has been hoping for."
The "trillion dollar" comment was referring to the potential size of the connected device and IoT market - you seem to have misread it.