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Electric Adapter(power supply)

Discussion in 'Power Electronics' started by dosyl, Sep 22, 2013.

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  1. dosyl


    Sep 22, 2013
    Hi guys,
    I'm new on this forum. I do electronic project not enough often.I believe what I want to ask is easy, but for me!!!!!!!!!
    I have a Brother Ptouch 1290 that use 6 batteries AAA = 9volts. Brother sell an electric adapter for close of $25.00. I'm sure that I can made it myself (but with your help).
    PTouch Electric Adapter2.jpg

    When I put a 9 volts adapter in the socket I have .87 volts at the load of Ptouch(capacitor 3300 uF. Where the voltage are gone.

    On the plan I write a Zener Diode but not sure if it is.

    The adapter 9 volts without load have close of 13.5 volts. It's written 9 volts on. When I put a 9 volts adapter nothing happen.

    Attached Files:

    Last edited: Sep 22, 2013
  2. dosyl


    Sep 22, 2013
    I succeeded with a power supply with enough amps. Thanks anyway.
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