Recent content by charliecuattro

  1. charliecuattro

    Led display Digital Voltmeter question

    hi, i already contacted www.beta-dyne.com who make a 9v to 5v dc converter 2watts , 400 ma isolated and they are on their way . As soon i have them i will post results and my modified board layout. becouse mostly dc-ac inverters use 12v or 24 v configurations, i will use 9v to 5v beocuse at 9...
  2. charliecuattro

    Led display Digital Voltmeter question

    hi, i have a dc-ac inverter 3kw 110v from 12v battery bank. i would like to monitor the battery voltage, but i dont want to use 9v alkaline battery nor 110ac power supply for power the voltmeter. becouse i can not feed the vmeter from same source i'm monitoring, i want to use a circuit to be...
  3. charliecuattro

    Led display Digital Voltmeter question

    thanks MP a isolated dc-dc converter might work?? somebody can helpme with a low cost circuit dc-dc isolated?? i edit the board file from eagle and added: on-off-on swch grid ac led inverter led the bridge for ac readings becouse dc-ac inverters usually have big battery banks , will be nice to...
  4. charliecuattro

    Led display Digital Voltmeter question

    hi, i have an power mosfet inverter dc to ac , works with 24volts instead of using a battery for the voltmeter, can i use same battery under measuring as source for the circuit it self ?? sorry but i'm jut a hobbyst thanks
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