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  1. S

    AC TO DC with Op amp

    Any ideas how i can convert 230v AC to 5v DC with dual polarity using an op amp? thanks
  2. S

    Unified power source

    Hi, how do i get a constant dc output voltage from an ac voltage input? ac input to a dual polarity dc output required. i am doing a project that will be a unified power source to include a socket, usb connections, nightlight and a light switch all in one. file attached is an incomplete...
  3. S

    Simple power supply that can be embedded in a wall socket

    Hi, i wish to develop a simple power supply that can convert ac signal to a dual polarity dc output. I want this to be a cheap but effective power supply which could be used to show where a switch is on a wall, via a light, or to indicate whether or not a power switch is on or off. Any ideas?
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