Hello. I'm trying to build a self powered, isolated volt meter to measure a 12 volt boat battery. I built the volt meter using this kit: http://www.canakit.com/universal-digital-panel-meter-kit-ck221-uk221.html
Then I bought a 5V isolated power supply to keep it stable: http://parts.digikey.com/1/parts/733021-conv-dc-dc-6w-sngl-12v-5v-pcb-cc6-1205sf-e.html
The +/- comes into the isolated power supply input leads, and onto the test leads of the kit, and out the other side of the isolater to the power input leads on the meter.
It works... but its too sensitive. It jumps up and down about a volt very quickly.
I'm looking for an easy way to average the input current so its not so jumpy.
Thanks for any ideas!
- Peter
Then I bought a 5V isolated power supply to keep it stable: http://parts.digikey.com/1/parts/733021-conv-dc-dc-6w-sngl-12v-5v-pcb-cc6-1205sf-e.html
The +/- comes into the isolated power supply input leads, and onto the test leads of the kit, and out the other side of the isolater to the power input leads on the meter.
It works... but its too sensitive. It jumps up and down about a volt very quickly.
I'm looking for an easy way to average the input current so its not so jumpy.
Thanks for any ideas!
- Peter