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Subject: 12V limiter circuit design needed
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Date: 08/13/02 at 12:28 AM
Posted by: Zro
I have hooked a couple lights up to the sub on my computer to have them flash at the bass, and it looks sweet. Now, I'm thinking of adding a couple cold cathode tubes to the underside of the desk and having them flash to the beat also. The tube comes with an inverter to go from the 12V that the computer supplies to whatever the tube uses, but I've noticed that during some heavier bass, the voltage goes above 12V and the whole circuit cuts out.
What I'm looking for is something to put between the sub and the inverter so that the inverter will not get more than 12V. I want it to get from 0 - 12V and when the voltage is above 12, it just get's 12. The local electronics shop said I could use an MOV (whatever that is)and it's rated for a 14V cutoff, but when I hook it in directly in line with the positive lead for the inverter, I get no power at all to the inverter.
Any help would be greatly appreciated.
here's a link to a local website that sells the Cathode tubes and inverters if you need to see what the heck I'm babbling about. http://www.subzerocomputers.net/Merchant2/merchant.mv?Screen=CTGY&Store_Code=SZC&Category_Code=DCAT
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