MJLorton Solar Power and Electronic Measurement Equipment Forum

General Category => General Discussion => Topic started by: Tony3dd on August 11, 2015, 10:30:41 AM

Title: Auto On Circuit
Post by: Tony3dd on August 11, 2015, 10:30:41 AM

Hi all, I know these auto on power circuits generally leave a lot to be desired, but mine works surprising well on my new Emotiva a-100 amplifier, that is till the central air powers on. That will cause my amp to turn on while in auto power on. Is there anything I can do to suppress this voltage spike? I tried an APC surge suppressor, but that does nothing.

Title: Re: Auto On Circuit
Post by: Tony3dd on August 12, 2015, 12:32:25 PM

Ok, I thought maybe the input cable to that amp was picking up noise, so I put a very high quality shielded cable on it. same problem,the amp comes on if the air conditioner turns or, or I flick the wall fan switch, and the amp goes on. So, I tried braiding the cables. same problem. Next I tried my iPod, and that works fine. Soon as I plug the cables back into the Mac I get the problem. So I guess the noise is coming straight through A/C connections. Is there anything (short of finding another outlet), I can do to filter this out?

Title: Re: Auto On Circuit
Post by: SteveyG on August 21, 2015, 04:01:12 AM

I think we'll need a few more details before anyone can answer. A schematic and maybe a photo of the layout would be a good start...