Kegconnection Complete Starter Kit and More Giveaway!


Home Brew Forums > Home Brewing Beer > Electric Brewing > voltage drop in SSR

Reply
 
LinkBack Thread Tools
Old 04-12-2014, 03:33 AM   #21
ajdelange
Senior Member
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2010
Location: McLean/Ogden, Virginia/Quebec
Posts: 5,636
Liked 535 Times on 438 Posts
Likes Given: 15

Default

Quote:
Originally Posted by wuttheheeck View Post
Is there a minimum switching current for SSRs?
There is a 'holding current' i.e. a minimum required to keep the device conducting but as the gate is being applied continuously that shouldn't be an issue.
__________________
ajdelange is offline
 
Reply With Quote Quick reply to this message
Old 04-12-2014, 05:22 PM   #22
wuttheheeck
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2013
Posts: 61
Likes Given: 46

Default

I use a two pump system, and this one being controlled is a 12vdc pump used for HLT circulation and sparge only. Instead of switching the ssr with 5v I bumped it up to 12v 750mA and it is enough to power the pump.

thanks for the help everyone

__________________
wuttheheeck is offline
 
Reply With Quote Quick reply to this message
Old 04-12-2014, 10:20 PM   #23
ajdelange
Senior Member
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2010
Location: McLean/Ogden, Virginia/Quebec
Posts: 5,636
Liked 535 Times on 438 Posts
Likes Given: 15

Default voltage drop in SSR

None of that makes sense. If you try to control a DC load with an SSR it will never commutate and keep conducting even if you remove the gate signal. The gate signal should have no effect on the output (other than switching it on an off) as all it does is light a LED. The led shines on photosensitive device connected to the triac or SCR's thus isolating the control circuit from the AC circuit.

The only thing I can thing of here is that somehow the gate signal is getting to the motor and that doesn't make a lot of sense either.

__________________
ajdelange is offline
 
Reply With Quote Quick reply to this message
Old 04-13-2014, 01:04 AM   #24
atoughram
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2013
Location: Puyallup, Washington
Posts: 942
Liked 115 Times on 101 Posts
Likes Given: 173

Default

So... Your controlling a DC pump with an AC SSR???

Well there's your problem right there....

__________________
Clover Creek Brewery, Puyallup WA
Planning - FS90 Amber Ale
Fermenters - Air
On tap
Ichter Hill IPA OG 1.058
Carbon River Hefe OG 1.049
atoughram is offline
 
Reply With Quote Quick reply to this message
Old 04-13-2014, 01:39 AM   #25
sandyeggoxj
Head of Research and Development
HBT_SUPPORTER.png
Feedback Score: 1 reviews
 
sandyeggoxj's Avatar
Recipes 
 
Join Date: Jan 2011
Location: Sunshine and Big Holes
Posts: 1,047
Liked 104 Times on 78 Posts

Default

I'm glad we are all confused here. Ha!

__________________

*Everything I say is fully substantiated by my own opinion

sandyeggoxj is offline
ClaudiusB Likes This 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
SSR voltage leak terodox DIY Projects 14 03-16-2014 11:13 AM
Voltage Rating. What exactly does mean? mattrennert Electric Brewing 3 08-11-2012 08:30 PM
Strange Voltage Drop BigBobsBrews Electric Brewing 17 10-19-2011 03:56 PM
Switch at different voltage njbabs Electric Brewing 2 07-13-2011 10:30 PM
Top Drop (Drop top clone) lactose? hop substitution? brando Recipes/Ingredients 0 02-12-2010 08:36 PM