Help designing CF lamp selector using momentary switches. Please!
Help designing CF lamp selector using momentary switches. Please!
(OP)
Hope someone can help:
I have three lamps(13w compact flourescent. Each driven by its own 12vdc electronic ballast) that I would like to switch on/off(*select only one to be on at a time) using 3 momentary switches(preferably spdt but I can use dpdt). Currenty I am using three SPDT "alternate action(non momentary)" switches with three non-latching relays. Doing it this way, all three lights can be on at the same time if all the switches are pushed in. I dont want it to work that way. I simply want to build a selector with three MOMENTARY switches....ie:
lamps A,B,C
And Switches A,B,C
When pushbutton"A" is pressed, lamp "A" goes on and lamps "B" and "C" should be off.
When pushbutton"B" is pressed, lamp "B" goes on and lamps "A" and "C" should be off.
When pushbutton"C" is pressed, lamp "C" goes on and lamps "A" and "B" should be off.
NOTE: The above "switching sequence" is not in any order...For example I may want to turn on Lamp "B" first..
Simple concept??? It is just a simple lamp selector using momentary switches
I thought about using 2 latching relays but I can't figure out how to make it work??
It would seem that using relays would be the best and most reliable way to do this but I am totally open to ANY designs!
I am also hoping to keep the cost under $150 and of course I really want it to last!
Any sugestions???
Thanks in advance!
PS Im glad I found this website...Alot of great info!
I have three lamps(13w compact flourescent. Each driven by its own 12vdc electronic ballast) that I would like to switch on/off(*select only one to be on at a time) using 3 momentary switches(preferably spdt but I can use dpdt). Currenty I am using three SPDT "alternate action(non momentary)" switches with three non-latching relays. Doing it this way, all three lights can be on at the same time if all the switches are pushed in. I dont want it to work that way. I simply want to build a selector with three MOMENTARY switches....ie:
lamps A,B,C
And Switches A,B,C
When pushbutton"A" is pressed, lamp "A" goes on and lamps "B" and "C" should be off.
When pushbutton"B" is pressed, lamp "B" goes on and lamps "A" and "C" should be off.
When pushbutton"C" is pressed, lamp "C" goes on and lamps "A" and "B" should be off.
NOTE: The above "switching sequence" is not in any order...For example I may want to turn on Lamp "B" first..
Simple concept??? It is just a simple lamp selector using momentary switches
I thought about using 2 latching relays but I can't figure out how to make it work??
It would seem that using relays would be the best and most reliable way to do this but I am totally open to ANY designs!
I am also hoping to keep the cost under $150 and of course I really want it to last!
Any sugestions???
Thanks in advance!
PS Im glad I found this website...Alot of great info!





RE: Help designing CF lamp selector using momentary switches. Please!
See thread:
www.eng-tips.com/viewthread.cfm?qid=100872
RE: Help designing CF lamp selector using momentary switches. Please!
thanks!
RE: Help designing CF lamp selector using momentary switches. Please!
RE: Help designing CF lamp selector using momentary switches. Please!
RE: Help designing CF lamp selector using momentary switches. Please!
RE: Help designing CF lamp selector using momentary switches. Please!
For one piece:
I would use e.g. AROMAT's AGQ1213 solid state relay with
CMOS or transistor logic, using a series C power supply
( 4diode bridge,one diagonal is input with series R and C
to the 110 AC. Other one to filter cap parallel with 10 V
Zener to supply the CMOS. From your budget -150- you
could buy the parts for 10 ( without PC board and switches)
For schematics, send fax#
<nbucska@pcperipherals DOT com> subj: eng-tips
read FAQ240-1032
RE: Help designing CF lamp selector using momentary switches. Please!
<nbucska@pcperipherals DOT com> subj: eng-tips
read FAQ240-1032