current control

  1. J

    Homemade Power Supply How to?

    I'm posting today hoping for some guidance on a project i would like to attempt. I recently came into a lot of 64 12v 7AH Sealed Lead Acid batteries from a backup UPS. The batteries are still good and take a charge and load like normal for the most part. Since i only have the batteries and...
  2. V

    what is the smd equivalent package of BD139 NPN transistor?

    I am developing a basic switching circuit using a PIC microcontroller where the maximum drive current will be up to 2A in this case I was using BD139 but now due to my PCB has a Single-layer option I have to use SMD for it. so, please anyone suggest to me the best NPN SMD transistor for my...
  3. Amir Mohammad Soltanpour

    How to limit LM2596 output current

    How can Lm2596 constant output current be limited ? How lm2596 cc cv module like in the picture control output current ?
  4. thatguy98

    current limiter for led lights

    hi, i have 4 led lights designed to work in ac but i want to use them in a garage that doesn't have power. The lights consist of just an led strip without any resistors, have a forward voltage of 60v and draw 300mA. I thought of removing the ac/dv converter and just use a 60v battery to power...
  5. J

    Current control for a battery charge

    How can I control the current that is supplied to a battery? I need to balance current consumption to avoid some parts of the system run out of power. My system is described in the attached file. I have a 12V input which goes into a Boost regulator to get 48V. Those 48V are used to feed a...