Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Brushless motors princples

Status
Not open for further replies.

yev15

Member level 2
Joined
Mar 22, 2002
Messages
49
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
270
Does somebody has books about brushless motors operation principles?
Thanks.
 

Sebi

Member level 3
Joined
Jan 2, 2002
Messages
63
Helped
4
Reputation
8
Reaction score
4
Trophy points
1,288
Location
Hungary
Activity points
444
I've disassembled a simply PC-PSU fan motor.It contains two coils in two NPN transistors collector, the "second" transistor base coming from the "first" collector, and the "first" base coming from a bipolar HALL-element.The rotor is a sector-magnet.(N...S...N...S)
Maybe help for You....
 

wurzelsepp

Junior Member level 3
Joined
Mar 27, 2002
Messages
28
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,283
Activity points
121
Brushless motors principles

Go to the web sites of www.st.com and look for bmotor1000.pdf .
Maybe it's helpfull .
 

coppervaporlaser

Member level 3
Joined
Jun 23, 2002
Messages
64
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,288
Activity points
495
Try MAXXON motors page

they vave also detailed infos of their brushless dc motors ...

http://www.maxonmotorusa.com/

p.s.: heres a ultraquick explanation of the principle:

a permanent magnet is mounted on the rotating axis, which is embeddeed into the errecting coils 'tube' - a electronic produces the pseudo rotating field by switching the coiles :D
 

tedson

Newbie level 4
Joined
Oct 7, 2001
Messages
5
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
47
Searching to increase the speed of an CPU cooler Fan, and don'n KNOW how it works.
It has 4 coils on stator and magnetical band on rotor.
How to rebuild the PCB to have variable speed ?
 

Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top