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Search: Posts Made By: Ron v. Sommeren
Showing results 1 to 13 of 13
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Forum: Brushed/Brushless motors, speed controls, gear drives
06-02-2005, 09:07 AM
Replies: 148
Views: 233,424
Posted By Ron v. Sommeren

RE: How does a brushless motor work?

@Neomike
There is no slip in these motors.
Forum: Brushed/Brushless motors, speed controls, gear drives
06-02-2005, 09:04 AM
Replies: 148
Views: 233,424
Posted By Ron v. Sommeren

RE: How does a brushless motor work?

It's the motor that tells the controller when to commutate. These brushless motors are the same as brushed motors, only here the reversing of the voltage/current is done by the ESC, based rotor...
Forum: Brushed/Brushless motors, speed controls, gear drives
03-10-2005, 03:20 PM
Replies: 148
Views: 233,424
Posted By Ron v. Sommeren

RE: How does a brushless motor work?

Adam, since these motors, in combination with the ESC of course, are self-commutating, they have zero slippage.
Forum: Brushed/Brushless motors, speed controls, gear drives
02-28-2005, 08:51 AM
Replies: 148
Views: 233,424
Posted By Ron v. Sommeren

RE: How does a brushless motor work?

Say, your controller can handle a two pole motor at 140krpm. This means it can handle a four magnetpole motor up to 70krpm, a 8pole motor up to 35krpm, a 10pole motor up to 28krpm and a 14pole motor...
Forum: Brushed/Brushless motors, speed controls, gear drives
02-28-2005, 08:46 AM
Replies: 148
Views: 233,424
Posted By Ron v. Sommeren

RE: How does a brushless motor work?

The earlier brushless motors had Hall sensors. Nowadays, the voltage induced in the non-powered phase (only two of the phases are powered at any time) tis used to determine rotor position and speed.
Forum: Brushed/Brushless motors, speed controls, gear drives
06-03-2004, 02:22 PM
Replies: 148
Views: 233,424
Posted By Ron v. Sommeren

RE: How does a brushless motor work?

Yes Flypaper, it matters a great deal. Wind it the wrong way and coils will be working against eachother. Motor will not start or may get hot. Winding direction/diagram depends on the configuration,...
Forum: Brushed/Brushless motors, speed controls, gear drives
04-19-2004, 04:55 AM
Replies: 148
Views: 233,424
Posted By Ron v. Sommeren

RE: How does a brushless motor work?

star = wye = y
triangle = delta
Forum: Brushed/Brushless motors, speed controls, gear drives
04-18-2004, 01:31 PM
Replies: 148
Views: 233,424
Posted By Ron v. Sommeren

RE: How does a brushless motor work?

In a star configuration, the starpoint is floating.
Forum: Brushed/Brushless motors, speed controls, gear drives
04-16-2004, 02:16 AM
Replies: 148
Views: 233,424
Posted By Ron v. Sommeren

RE: How does a brushless motor work?

To use a FDD motor as a direct-drive motor in a helicopter, it has to be rewound and remagneted with stronger magnets:
http://www.rcgroups.com/forums/showthread.php?s=&threadid=197862
...
Forum: Brushed/Brushless motors, speed controls, gear drives
04-02-2004, 12:09 PM
Replies: 148
Views: 233,424
Posted By Ron v. Sommeren

RE: How does a brushless motor work?

Or 6, 9, 12, 15, 18, ... etcetera. The number of coils has to be a multiple of 3. See the simulations above for example

That's a 'star/Y' configuration, there's also the 'triangle/delta'...
Forum: Brushed/Brushless motors, speed controls, gear drives
04-01-2004, 04:17 AM
Replies: 148
Views: 233,424
Posted By Ron v. Sommeren

RE: How does a brushless motor work?

The large cd-rom motor simulation explains the different colours. The cd-rom simulation was done with a free motor simulation package:
http://femm.foster-miller.net



Please, don't open...
Forum: Brushed/Brushless motors, speed controls, gear drives
03-29-2004, 10:05 AM
Replies: 148
Views: 233,424
Posted By Ron v. Sommeren

RE: How does a brushless motor work?

Brushless motor animations and simulations.

Waveforms in a brushless controller:
http://www.torcman.de/peterslrk/SPEEDY-BL_eng.html#Anker1591256

Two better animations, you can step...
Showing results 1 to 13 of 13


 
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