Re: Low Voltage Cutoff Circuit

From: Adrian Jansen (qqv_at_noqqwhere.com)
Date: 08/24/04 

Date: Wed, 25 Aug 2004 08:15:04 +1000

Just wire a relay with one NO contact in series with its coil. Then arrange
it that when the voltage drops too low, the relay opens, which cuts the
power permanently, until you close a pushbutton across that same relay
contact. 

-- 
Regards,
Adrian Jansen
J & K MicroSystems
Microcomputer solutions for industrial control
"Me" <me@me.me> wrote in message
news:mjOWc.11016$2L3.189@newsread3.news.atl.earthlink.net...
> Hello,
>
> I need a variation of a Low Voltage Cutoff circuit.
>
> I have a ballast that runs on a 12V battery. When the battery voltage
drops
> below 10V, the ballast shuts off, opening the circuit. After that happens,
> the battery voltage rises due to lack of load, turning on the ballast,
which
> in turn drops the voltage and shuts off the ballast. This turns into a
> vicious cycle.
>
> I need to create a circuit that cuts off the voltage when the ballast
opens,
> (or when the battery voltage drops below a preset value, whichever is
easier
> to create), and stays cutoff, until I hit a Reset button.
>
> Any ideas on the simplest approach?
>
> Thanks
>
>
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