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  1. leobelle_18

    9V power supply with backup battery

    can you help me with our design? we need circuit and some discussion regarding a 9V power supply that will automatically switched to battery when the supply is lost.. we already have computations up to the regulator stage of the power supply.. what we need is the circuit for the backup battery...
  2. IMG 3114

    IMG 3114

  3. 167371 1619990332935 1031702113 1362265 6136448 n

    167371 1619990332935 1031702113 1362265 6136448 n

  4. profile pics

    profile pics

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