Breadboard voltage limits? - Electronic Circuits Projects Diagrams Free

jrz126 · 9th March 2005, 05:12 PM

I'm waiting on a package of parts which I need to construct my strobelight. I'm planning on using this design here: http://www.hut.fi/Misc/Electronics/c...trobo_12v.html

Can I put this into a breadboard? or do I have to go directly to a perf board?

chemelec · 9th March 2005, 11:58 PM

Yes, There shouldn't be Any Problem.

Dean Huster · 10th March 2005, 04:39 AM

YES there should be a problem. Standard solderless breadboards such as those made by Global Specialties or E & L Instruments have contacts that are closely-spaced. When mounted to a metal plate, a new set of maximum voltage problems will exist. It's been a long time since I've read the spec sheet on one of these, but they are made for low-voltage applications for the most part. Your strobe may have close to 500V involved, not counting the trigger voltage which is a lot higher. You can get away with using the breadboard if it's not mounted on a metal plate and if you use terminals that are separated from the rest of the board by quite a bit. Alternatively, you can literally "float" the high voltage points off the board rather than connecting them directly to contacts on the board.

The Global Specialties or E & L Instruments boards are high-quality boards. I would expect the Asian imports to have significantly lower specifications for voltage breakdown.

Dean

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9th March 2005, 05:12 PM	(permalink)
jrz126	Breadboard voltage limits? I'm waiting on a package of parts which I need to construct my strobelight. I'm planning on using this design here: http://www.hut.fi/Misc/Electronics/c...trobo_12v.html Can I put this into a breadboard? or do I have to go directly to a perf board? __________________ Jeff Zimmerman To the optimist, the glass is half full. To the pessimist, the glass is half empty. To the engineer, the glass is twice as big as it needs to be.

9th March 2005, 11:58 PM	(permalink)
chemelec	Yes, There shouldn't be Any Problem. __________________ I No Longer accept Private Messages on here. All Emails to me Must Contain the Word \"Electronic\" in the \"Subject Line\" or they go Directly to my Junk Mail Folder. Email me at: chemelec@hotmail.com Website: http://www3.telus.net/chemelec

10th March 2005, 04:39 AM	(permalink)
Dean Huster	YES there should be a problem. Standard solderless breadboards such as those made by Global Specialties or E & L Instruments have contacts that are closely-spaced. When mounted to a metal plate, a new set of maximum voltage problems will exist. It's been a long time since I've read the spec sheet on one of these, but they are made for low-voltage applications for the most part. Your strobe may have close to 500V involved, not counting the trigger voltage which is a lot higher. You can get away with using the breadboard if it's not mounted on a metal plate and if you use terminals that are separated from the rest of the board by quite a bit. Alternatively, you can literally "float" the high voltage points off the board rather than connecting them directly to contacts on the board. The Global Specialties or E & L Instruments boards are high-quality boards. I would expect the Asian imports to have significantly lower specifications for voltage breakdown. Dean __________________ Dean Huster, Electronics Curmudgeon Contributing Editor emeritus, "Q & A", of the former "Poptronics" magazine (formerly "Popular Electronics" and "Electronics Now" magazines). R.I.P.