Comments on: Dyson vacuums 104,000rpm brushless DC technology

By: Andronic George Leonard

Andronic George Leonard — Fri, 07 Mar 2025 08:09:36 +0000

Hi. Can someone tell me how to power a dyson brushless motor (2 pins ..) without a pcb board ?

By: Steve Bush

Steve Bush — Fri, 12 Apr 2019 10:00:15 +0000

Hi Derek
For me, what is remarkable about that motor is that the firm knocked the cost out of the mechanical components – getting that sort of rotational speed from consumer-grade parts, and that almost a decade ago.
Dyson research and technology is impressive – although Brexiteer James Dyson was not so impressive, moving his company HQ from the UK Singapore.

By: Derek Read

Derek Read — Thu, 11 Apr 2019 21:30:47 +0000

Keep in mind that Dyson felt the need to trademark “digital motor” with the USPTO so that nobody else can legally use that terminology. When marketing and legal is in charge you tend to end up with made-up terms like this for existing technology. Yes it has some smart sensing and control, but in the end it really is just a brushless DC motor plus some very nicely engineered circuitry to drive it.

If this was really something new I would expect to see a US patent. There seem to be some, but not by Dyson, and those that existed seem to either have been struck or abandoned. Would be interesting to see a patent if someone finds one.

By: Steve Bush

Steve Bush — Wed, 21 Nov 2018 10:51:44 +0000

In reply to erwin lipshits. The sort of thing that FEA can miss?

By: erwin lipshits

erwin lipshits — Mon, 19 Nov 2018 23:18:37 +0000

In reply to Dr Bob. Think resonance and the factor of Q.

By: Neil

Neil — Sun, 16 Sep 2018 16:00:09 +0000

In reply to Dr Bob. Maybe 'skin effect' gets into the motor winding design at these motor speeds.

By: Dr Bob

Dr Bob — Mon, 11 Jan 2016 15:16:47 +0000

I’ve long suspected that Dyson takes the infinite number of monkeys approach to design and here is something to back it up.

Having two windings in parallel does not reduce the inductance, it stays the same. It does reduce the effective resistance but parallel windings on the same core doesn’t alter the inductance. Putting two windings in series does change the inductance upwards.

By: steve bush

steve bush — Mon, 11 Jan 2016 14:21:27 +0000

Hi Henk, let’s hope Dyson did the reliability test – I suspect they did.

By: Nick

Nick — Sun, 10 Jan 2016 19:47:39 +0000

Which dyson handheld vacuums have a brushless motor?

By: Henk Schutte

Henk Schutte — Wed, 04 Sep 2013 09:36:46 +0000

Very interesting technology, I like very much these kinds of innovation that goes to the edge.
But one warning: usually high speed components like ultracentrifuges have strict limitations on hours of use, on the penalty of risk of explosion. I really hope that Dyson was aware of these risks.