Control a Bs2 On Ac.....Like How a Light Dimmer Switch Works
sam_sam_sam
Posts: 2,286
Hi EveryOne
I want to use a bs2 as a dimmer controler for AC
Like the light dimmer switch that you buy at the store
Can this be done and what parts do i need to use and is there a schematic on how to hook it up
What should i put in the Parallax search to find some demo code and a schematic for this if this has been tried before
I have a hard time finding what i am looking for on Parallax search
Can anyone help
Thank for any help that you can give me
Sam
Post Edited (sam_sam_sam) : 2/10/2006 11:08:16 PM GMT
I want to use a bs2 as a dimmer controler for AC
Like the light dimmer switch that you buy at the store
Can this be done and what parts do i need to use and is there a schematic on how to hook it up
What should i put in the Parallax search to find some demo code and a schematic for this if this has been tried before
I have a hard time finding what i am looking for on Parallax search
Can anyone help
Thank for any help that you can give me
Sam
Post Edited (sam_sam_sam) : 2/10/2006 11:08:16 PM GMT
Comments
Having serious concern for your personal safety, I'm going to suggest that this may not be a project you want to pursue -- if you make a wiring mistake you could be hurt badly, even killed. Most lamp dimmer circuits require tricky timing that is not possible with a BS2 anyway; you would be forced to put a digital pot into a standard dimmer circuit and this could lead to problems if not done exactly right.
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Jon Williams
Applications Engineer, Parallax
http://www.epanorama.net/documents/lights/lightdimmer.html
If you are inexperienced working with high voltages, I would either purchase a kit such as:
http://www.electronics123.com/s.nl/sc.8/category.39/it.A/id.1902/.f
or get the X10 firecracker kit (your safest choice).
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·1+1=10
Post Edited (Paul Baker) : 2/10/2006 11:24:19 PM GMT
THANK YOU FOR YOUR·CONCERN·ABOUT·MY·PERSONAL SAFETY
Having serious concern for your personal safety, I'm going to suggest that this may not be a project you want to pursue -- if you make a wiring mistake you could be hurt badly, even killed.
I have worked with ELECTRICTY FOR A LONG TIME··(ALSO I AM A A/C TECH)
if you make a wiring mistake you could be hurt badly, even killed
I HAVE GREAT RESPECT FOR· ELECTRICTY and know that if you are not care full·you·can get badly hurt or even killed
Three·thing that i do when testing a· AC Circuit
Frist·I Use A 1\2 FAST ACTING FUSE OR SMALLER
Second
I have this Circuit on my work table and nothing else and have a·
REMOTE SWITCH·to turn it ON AND I STAND BACK FROM THE TABLE
·I ALSO HAVE· SAFETY GLASSES ON
Third
I also use an AMP METER and check the AMPS the Circuit is pulling
ONE LAST THING
I also check the WIRING Four or FIVE times to make sure that i have it wired up right
NOW IF ANYONE (AND I MEAN ANYONE) CAN TELL ANY ME ANY·OTHER· SAFETY THINGS OR CONCERNS
THAT I MIGHT HAVE OVER LOOK PLEASE FEEL FREE TO·TELL ME·YOUR··CONCERNS
NOW SAYING THIS
·Most lamp dimmer circuits require tricky timing that is not possible with a BS2 anyway; you would be forced to put a digital pot into a standard dimmer circuit and this could lead to problems if not done exactly right.
DOSE anyone know how to this part
·TO put a digital pot into a standard dimmer circuit···························
WHAT· problems· could I run in to using·standard dimmer circuit
And is this a SAFER way to go·
·WHAT IS THE RIGHT WAY TO·WIRE·A·DIGTAL POT·in this· circuit
COULD ANY PLEASE·TELL ME HOW TO DO THIS THE SAFE WAY
Also which of these two Digital Pot
Stock#:·604-00015··· <!-- product category -->
<!-- display product name -->Digital Pot DS2890-000
or this
Digital Potentiometer, 10k
Stock#: 604-00010
What is the Different between these two and which one should i use
Where can i find a demo code for·each one·
Most lamp dimmer circuits require tricky timing that is not possible with a BS2 anyway
Is ther ANY controler that could do this
I am going to do ALOT OF READING AND LOOKING AT CIRCUITS BEFORE I START THIS PROJECT
so if anyone can help me
I WANT TO THANK ANYONE THAT CAN IN THIS MATTER
MY·PERSONAL SAFETY IS THE # ONE THING AND I WILL BE CAREFULL
Sam·························
Post Edited (sam_sam_sam) : 2/11/2006 3:27:58 AM GMT
THANKS PAUL FOR THIS POST
YES I·have some experience with high voltage
AND I WILL BE CAREFULL
If you have some experience with high voltage design, heres an article on making a homebrew dimmer: http://www.personal.psu.edu/users/a/u/aus156/reports/Final_Report_CSE596.pdf and here
I looked at this any may use part of what they have if i do not find something beter
Sam
DOSE anyone know how to this part
TO put a digital pot into a standard dimmer circuit
WHAT problems could I run in to using standard dimmer circuit
And is there a SAFER way to go
WHAT IS THE RIGHT WAY TO WIRE A DIGTAL POT in this circuit
COULD ANY PLEASE TELL ME HOW TO DO THIS THE SAFE WAY
Also which of these two Digital Pot
Stock#: 604-00015 <!-- product category -->
<!-- display product name -->Digital Pot DS2890-000
or this
Digital Potentiometer, 10k
Stock#: 604-00010
What is the Different between these two and which one should i use
Where can i find a demo code for each one
Most lamp dimmer circuits require tricky timing that is not possible with a BS2 anyway
Is ther ANY controler that could do this
I am going to do ALOT OF READING AND LOOKING AT CIRCUITS BEFORE I START THIS PROJECT
so if anyone can help me
I WANT TO THANK ANYONE THAT CAN IN THIS MATTER
MY PERSONAL SAFETY IS THE # ONE THING AND I WILL BE CAREFULL
Sam
Digital POTs are for low, very low current uses.
Additionally, the potentiometer used to control a typical dimmer is part of the AC circuit, and I figure, a digital POT would be unsuitable.
However, you might consider using a motor (perhaps a servo) linked to a POT shaft to turn/adjust with.· This way the microcontroller would be electrically isolated from the AC Dimmer.
Just a suggestion.
Post Edited (PJ Allen) : 2/15/2006 11:49:30 PM GMT
Thanks for the post
I was considering doing this.............
However, you might consider using a motor (perhaps a servo) linked to a POT shaft to turn/adjust with.· This way the microcontroller would be electrically isolated from the AC Dimmer.
This is a good idea but........
·How do i do this
·Where do i get (PARTS...... SEVRO what TYPE·
·What TYPE of LINKAGE.........
·Do i use to link the· LIGHT DIMMER POT Shaft··to· SERVO Shaft
Where do i get the PARTS from
This is my biggest problem·is What TYPE of LINKAGE..Do i use to link the· LIGHT DIMMER POT Shaft· to· SERVO Shaft
·I have not done·this before so if you can give Some Pointers On How To Do This That Would Be
GREAT
·
Thank You For Your Help In This Matter
Sam
·
Post Edited (TINkER_MAN) : 2/16/2006 2:17:56 AM GMT
· A journey of 1,000 miles begins with one step.
· As to exactly where to go to get thus·& sundry, that's the $64 Question, sometimes.· You will have to scounge parts and·make your own a lot of the time and if you can't or don't want to spend money then the emphasis is on scrounging (scrapping "junk", looking for gears and so on.)· There just aren't, so far as I know, "everything you need or could ever want" kits.
· So, if you want to do this sort of thing, you need to be of a mind to improvise.· Another part of the deal is the looking around.·
· Parallax sells a lot of stuff www.parallax.com·(servos!)
· Also, www.robotstore.com and www.goldmine-elec.com and www.alltronics.com and www.allelectronics.com to name a few.
· When you go to sites, always look for "links", references to other sites with more stuff, other stuff.· Usually there is always a site search tool, so try "motors", "gears", whatever you're looking for.·
Here are some motorized potentiometers if that's of any use to you:
http://www.allelectronics.com/cgi-bin/category/470010/Motorized.html
Regards,
Bruce Bates
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Thanks ·Bruce·& PJ For The Post
The·INFO· helped alot
Thanks again
Sam