Hi all, I'm pretty inexperienced with electronic circuits and would really appreciate any help in understanding the issue I'm seeing. I suspect it's due to a gap in my understanding of how this type of circuit works, but would like to confirm that it's not faulty hardware.
I have a 12v DC power source, that presently runs a couple of DC devices (wifi receiver, motor, LEDs). No issues there.
I now have a device (piezo atomizer) that requires 24v DC, and was hoping that I could run it from my same 12v source and use a voltage booster to get the required 24v.
This is the booster I bought:
https://www.amazon.com/gp/product/B00RXJJGE2/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
What I'm seeing though is unexpected. When I connect the voltage booster's input terminals to my power source, the voltage measured at the INPUT terminals is now 18v with no load. This is back feeding the source and meaning my other 12v circuits are also measuring 18v input, which is too high. No-load OUTPUT from the booster is measuring 24-25v at the same time.
When I connect my 24v device to the output of the booster, it works - definitely not as well as when it's powered by a true 24v, 700mA source (the power adapter it came with). My input voltage drops to around 9, and the output from the booster drops to around 15-18.
I think I understand in basic terms that the booster works by trading amps for volts.
My questions are:
1. Does this sound like my 12v power supply needs to be supplying more amps?
2. Is it expected that the booster would backfeed the INPUT with a higher voltage or does this sound like a defect? I don't want to let the magic smoke out of my 12v stuff. Would some kind of diode work here?
Thanks so much for any help. If there's a way to get this working without having to cave and run two power sources, that would be fantastic.
I have a 12v DC power source, that presently runs a couple of DC devices (wifi receiver, motor, LEDs). No issues there.
I now have a device (piezo atomizer) that requires 24v DC, and was hoping that I could run it from my same 12v source and use a voltage booster to get the required 24v.
This is the booster I bought:
https://www.amazon.com/gp/product/B00RXJJGE2/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
What I'm seeing though is unexpected. When I connect the voltage booster's input terminals to my power source, the voltage measured at the INPUT terminals is now 18v with no load. This is back feeding the source and meaning my other 12v circuits are also measuring 18v input, which is too high. No-load OUTPUT from the booster is measuring 24-25v at the same time.
When I connect my 24v device to the output of the booster, it works - definitely not as well as when it's powered by a true 24v, 700mA source (the power adapter it came with). My input voltage drops to around 9, and the output from the booster drops to around 15-18.
I think I understand in basic terms that the booster works by trading amps for volts.
My questions are:
1. Does this sound like my 12v power supply needs to be supplying more amps?
2. Is it expected that the booster would backfeed the INPUT with a higher voltage or does this sound like a defect? I don't want to let the magic smoke out of my 12v stuff. Would some kind of diode work here?
Thanks so much for any help. If there's a way to get this working without having to cave and run two power sources, that would be fantastic.