Thread: Disable Inverter Low Voltage Alarm

Great idea! That's what I'll do, however, what size/ohm resistor should I use? Thanks

Dave

I think it's a piezo. Either way I'll try it. Also, do you have any ideas on delaying the audio signal at power up? My car mp3 makes a loud pop noise in the speakers when I power up. I've though about a circuit that maybe would delay the signal a few seconds in order to let the system ground itself or whatever it does so it won't pop. Any ideas? Thanks again

Dave

Hey thanks for all of the help. That's kinda what I was thinking. I'm trying to learn about designing things like that, but I've just started. I can pretty much take a circuit drawing and make it, just still slow on the design part.

Can you make a schematic that will give left and right RCA inputs then go through the timer then output L/R RCA? I need about a 6 to 8 second delay before it switches on -- my on board sound beeps through the speakers during the POST test! It's also annoying! Anyway, I thought a variable resistor would be neat so I can adjust the delay time, unless you know how to disable the POST beep. I can't find any setting in the BIOS.

Thanks again for your help!

Dave

Rob,

Thanks for the info! I just finished building the circuit and it works great. Gives me about an 8 second delay.

Another question. I've noticed a bit of a pop noise in the speakers on shutdown, do you think if I grounded the computer/sound card that it may help? And where would I connect the ground?

I think a lot of my problems will be solved once I get/build a DC-DC power supply, but I'm having trouble finding parts for the sproggy design. So I'm stuck with this whole inverter thing until then.

Again thanks for your time, I really appreciate it.

Dave