Detecting Voltage Drop - Page 2 - diyAudio
Go Back   Home > Forums > General Interest > Everything Else

Everything Else Anything related to audio / video / electronics etc) BUT remember- we have many new forums where your thread may now fit! .... Parts, Equipment & Tools, Construction Tips, Software Tools......

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 8th April 2013, 03:37 AM   #11
DUG is offline DUG  Canada
diyAudio Member
 
Join Date: Jan 2003
Location: mississauga ontario canada
Or this

A little less sensitive but fewer parts
Attached Images
File Type: jpg drop-det2.JPG (12.3 KB, 35 views)
__________________
Doug We are all learning...we can all help
"You can't stop the signal, Mal. Everything goes somewhere..."
  Reply With Quote
Old 8th April 2013, 04:30 AM   #12
diyAudio Member
 
KMossman's Avatar
 
Join Date: Jan 2013
Location: now in Suzhou, China
Send a message via Yahoo to KMossman Send a message via Skype™ to KMossman
many thanks to all

I get the stupid b*gger of the day award

It does work, as I 1st outlined.................some days, one should NOT do electronics!


The LED limits the voltage across T1 BE, and blocks reverse voltage flow when the voltage drops, keeping the V across the cap.

So when V+ drops, T1 turns on and hence T2 turns on - driving the load. C2 stretches the 'pulse'.

accelator_circuit.png
__________________
Getting back into business, though non-audio related. Have excellent contacts for NEW [OEM] Russian and Chinese tubes. Custom chassis, and parts [MOQ applies]

Last edited by KMossman; 8th April 2013 at 04:54 AM.
  Reply With Quote
Old 18th April 2013, 04:48 AM   #13
diyAudio Member
 
Join Date: Jul 2003
Location: Dona paula, Goa
'The LED limits the voltage across T1 BE,...'

I feel the other way, I may be wrong.

Gajanan Phadte
  Reply With Quote
Old 18th April 2013, 08:20 AM   #14
diyAudio Member
 
KMossman's Avatar
 
Join Date: Jan 2013
Location: now in Suzhou, China
Send a message via Yahoo to KMossman Send a message via Skype™ to KMossman
Quote:
Originally Posted by gmphadte View Post
'The LED limits the voltage across T1 BE,...'

I feel the other way, I may be wrong.

Gajanan Phadte
It does, and for this application it is a good thing. T1 already amplifies the Vd, so anything over [say] 2V is not necessary.
__________________
Getting back into business, though non-audio related. Have excellent contacts for NEW [OEM] Russian and Chinese tubes. Custom chassis, and parts [MOQ applies]
  Reply With Quote
Old 18th April 2013, 10:52 AM   #15
Elvee is offline Elvee  Belgium
diyAudio Member
 
Elvee's Avatar
 
Join Date: Sep 2006
Here are a number of variants to choose from: - or + referenced, open collector, referenced to another supply, etc:
Attached Images
File Type: png SagDetect.png (116.3 KB, 15 views)
__________________
. .Circlophone your life !!!! . .
♫♪ My little cheap Circlophone© ♫♪
  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
Voltage drop across JFETs? Test Electrix Solid State 3 14th July 2010 06:23 PM
Voltage drop across JFETs? Test Electrix Construction Tips 0 12th July 2010 03:29 PM
Effects of voltage drop??? kyrie48 Solid State 1 25th October 2007 08:29 AM
voltage drop ThSpeakerDude88 Chip Amps 30 19th July 2005 09:00 PM
Great voltage drop... drob Car Audio 9 9th July 2003 12:21 PM


New To Site? Need Help?

All times are GMT. The time now is 06:00 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