The official motor regulator circuit - diyAudio
Go Back   Home > Forums > Source & Line > Analogue Source

Analogue Source Turntables, Tonearms, Cartridges, Phono Stages, Tuners, Tape Recorders, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 14th June 2005, 10:46 AM   #1
diyAudio Member
 
Join Date: Dec 2003
Location: earth
Default motor regulator circuit

I have done this from a motor regulator for a turntable of mine, it has switchable 33 and 45 rpm, to a dc motor.

I haven't strictly drawn it correct, there MAY be errors, the first transistor is actually a fet, and I hope I have them connected the right way, but if anyone cleverer than me sees any errors, please correct them.
Attached Images
File Type: jpg motor regulator.jpg (29.9 KB, 1055 views)
  Reply With Quote
Old 14th June 2005, 11:30 AM   #2
diyAudio Member
 
Join Date: Dec 2003
Location: earth
ok another one here, this one is drawn slightly better, but again I have drawn with just npn bipolars, there could be errors, if anyone sees how this works, please inform.

left comes in from the bridge, 2 wires top right go to the motor.
Attached Images
File Type: jpg motorreg2.jpg (28.6 KB, 899 views)
  Reply With Quote
Old 14th June 2005, 04:55 PM   #3
diyAudio Member
 
Join Date: Dec 2003
Location: earth
Default The official motor regulator circuit

now redone correctly, this is 99% right this time.

This is the reg of my turntable, with adjustable 33 and 45 rpm.

enjoy, comments welcome,. I didn't design this.
Attached Images
File Type: jpg turntable regulator.jpg (20.7 KB, 1013 views)
  Reply With Quote
Old 14th June 2005, 06:01 PM   #4
diyAudio Member
 
Join Date: Dec 2003
Location: earth
BTw, its the reg. from a slightly earlier oigrin live psu, the advanced version.
A later ultra version has slightly more transistors, some paralled.

Motor for dc 100 is maxon 110189, a max range, 7 watt with 1.2ma start up current. 36 volts nominal 26 mm in diameter

at a guess dc200 is re max range, 226779, 9 watt.

The first terminal of the jfet attached to the input of the psu is actually the source.

Comments are invited.
  Reply With Quote
Old 14th June 2005, 06:23 PM   #5
diyAudio Member
 
Join Date: Dec 2003
Location: earth
Default ogirin live info see below

thanks
  Reply With Quote
Old 14th June 2005, 08:21 PM   #6
diyAudio Member
 
Bill Fitzpatrick's Avatar
 
Join Date: Jun 2001
Location: Eugene, OR
You're welcome
  Reply With Quote
Old 1st October 2005, 10:22 AM   #7
john2 is offline john2  United Kingdom
diyAudio Member
 
Join Date: Aug 2004
Location: lanc
Unhappy Origin Live power supply

Re the Origin Live power supply drawings they give no resister values, the details on what particular diodes, thyristors etc., etc., are absent-it is my intention to build an Origin Live power supply, without the missing details it will be dificuilt, to say the least.

Should anybody have any details regarding the missing information and/or the latest incarnation of the Origin Live power supply I would be most grateful.
  Reply With Quote
Old 2nd October 2005, 04:46 AM   #8
diyAudio Member
 
hagtech's Avatar
 
Join Date: Mar 2002
Location: Hawaii
Are you sure you drew this correctly? The C3 concerns me - could be stability issue within loop. And does motor current return to select, or to ground?

Why not just use a regulator chip? Like an LM2941 or LT1129? These are pretty low noise and have adjustable versions. They combine the PNP and all other stuff (including reference) inside. Very easy to use.

jh
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Please help about AC motor circuit arnoldc Analogue Source 4 21st June 2009 02:37 AM
Improving a turntable (motor controller circuit) ;) sek Analogue Source 26 15th September 2008 08:44 AM
Rega Motor connection circuit guglielmope Analogue Source 5 24th May 2006 10:21 AM
Once again DC-Motor circuit… planet IX Analogue Source 1 17th November 2005 12:14 PM


New To Site? Need Help?

All times are GMT. The time now is 07:06 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2