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    Charge Indicator Circuit help

    Guten Tag! I'm planning to do a project, wich contains a 3Cell Li-Ion Battery Pack with a Charge/Balance/Protection board (13.5V Charge Input). The main load is controlled by a MCU that needs to know when the battery is beeing charged. The LED will be replaced by an optocoupler, connected to...
  2. I

    5V to 4.3V PSU

    I fried it..
  3. I

    5V to 4.3V PSU

    Hi, I tried the method with a diode in series, but everything got really hot! i ordered this:http://www.dx.com/p/mini-dc-to-dc-synchronous-step-down-power-module-green-316402 i think this should work
  4. I

    5V to 4.3V PSU

    Thank you! Sorry, here is the full resolution: http://s14.postimg.org/4x4js8zgx/Screenshot_2015_03_07_14_20_24.png Of course! I think i have some diodes laying around. I haven't thought of diodes! Thank you, i think this is the easyiest solution. So i need just a usb plug and a diode and i...
  5. I

    5V to 4.3V PSU

    Hello, I'm new here and i'm not very expirienced in electronics. I bought a beard trimmer in ireland, it came with this funny plug: 4.3V output max 70mA I thought instead of using a plug converter im my home country i maybe could build a little power converter on my own, since i have som...
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