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So, I'm trying to power a diode/resistor that requires 15mA. I want the output of a 4 input NOR gate to power this. I guess it's been forever since I've dealt with CMOS logic. I was looking for a simple output current max.
This was the chip I was looking at.... 5v VDD/inputs. I was...
Thanks! I'll probably go with the resistor route. There is noise suppression built into the intercom. There's no way to filter out everything though; it varies from car to car. Only easy way is to just eliminate it from the system, which is precisely why the went the battery route. I'm just...
So I race rally cars, we have intercoms in our helmets. The new intercom I have is powered off of a 9v battery. This is due to the intercom picking up interference from the noisy alternator if it's powered directly.
The intercom CAN be powered by the 12v+ from the car; just has more noise...
Lingenfelter. Only one who makes something for this situation so the options were limited.
The module does work, but when the battery gets even a little low it doesnt work. Like I said the car will still crank so the batterys not that far gone...
I actually have the module on a switch that I turn off along with the ignition, but you are right... if it forget to turn the switch off and leave it sit for a few days, it will drain the battery.
To the above comments, i've tested it 9.5 is about the threshold for the module to function...
I have an rx7 with a corvette engine. Originally it was a 2006 engine, then i turbo'd the car. I bought a built shortblock for the turbo that was out of a 2007. Between 2006 and 07 they switched the crank reluctor wheel. So to use the computer out of the 05 I needed this converter module for...
^ Looks like it should. I'll have to give it a shot, or I've found a few voltage boosting circuits like you said. Eitherway neither seem very complicated. Thanks!
What about a seperate small chargeable 12v battery with a big diode.
I pretty much want the battery to be able to be charged, but when the voltage drops, the 2nd little battery still power the module?
I have a device that needs to hold 9.5 volts during cranking or it will shut off. The catch is that the device has to work in order for the car to start.
When the battery has a low charge (still enough to turn the car over), the car still will not start because it's not getting a crank...
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