« previous next »
Pages: [1]   Go Down

Author Topic: 240 VAC dimmer switch work with 12 VAC?  (Read 535 times)

0 Members and 1 Guest are viewing this topic.

Offline kaiden.lTopic starter

  • Newbie
  • Posts: 1
  • Country: au
240 VAC dimmer switch work with 12 VAC?
« on: January 14, 2020, 05:05:44 am »
i don't work with AC much so i don't really know anything about it.
i'm wondering if a 240 VAC dimmer switch can work with 12 VAC i have tried to find out my self but all i could find was 120 VAC with 12 VDC.
Edit: i have been told that it will not work if anyone has an idea for something that will work please tell me ( it is for heating a nichrome wire )
« Last Edit: January 14, 2020, 05:41:07 am by kaiden.l »
Logged
 

Offline David Hess

  • Super Contributor
  • ***
  • Posts: 16651
  • Country: us
  • DavidH
Re: 240 VAC dimmer switch work with 12 VAC?
« Reply #1 on: January 14, 2020, 05:24:59 am »
The trigger circuit for the TRIAC usually includes a 20 to 30 volt DIAC so it will not work on such a low AC voltage.
Logged
 
The following users thanked this post: mcovington, kaiden.l

Offline floobydust

  • Super Contributor
  • ***
  • Posts: 7055
  • Country: ca
Re: 240 VAC dimmer switch work with 12 VAC?
« Reply #2 on: January 14, 2020, 05:25:57 am »
No, not likely because the dimmer's DIAC triggers around 32V. Like DB3
You'd have to build an extra circuit to get around this, to make a bi-directional 10V DIAC for example.
Logged
 
The following users thanked this post: kaiden.l
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee