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Recent content by Kuberkoos

  1. K

    Why input amperage mentioned on a device's nameplate but not output amperage ?

    The nameplate amperage is the maximum the device will draw from the power outlet - immaterial of what the output is. Thus if your output socket can supply the nameplate current, you are ok. Your output current will (In the case of a power supply) be (Iin x Vin / Vout) x Efficiency (anywhere...
  2. K

    Looking for a bird repelling circuit

    Have enclosed my whole veggie garden with netting, it is the only way I could find that really worked.
  3. K

    [SOLVED] 5V 500mA from 5V 2A ????

    Can you not modify the original power supply? Surely, it must have some sort of current limiting that can be altered to only allow 500mA?
  4. K

    Linear Power Supply - Purchase, Variable Transformer, Transformer Array???

    Have a setup more or less like BradtheRad,but I use the Variac (Var. trafo.) extensively. It works very well for me,
  5. K

    power supply query kindly help me out for this

    A astable 555 timer in with variable frequency output fed into a voltage divider to get the correct voltage would be my first suggestiom
  6. K

    [SOLVED] E-bike Battery Charger

    I "inherited" an e-bike (36V) without a battery charger. I need to build one as the price on a new one in my neck of the woods is totally ridiculous. My idea is to use a LM317 voltage regulator and boost the output by means of an 8V Zener in the ADJ leg. I require a constant voltage of 45V with...
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