Jump to content
Electronics-Lab.com Community

ulli12

Members
  • Posts

    2
  • Joined

  • Last visited

    Never

Posts posted by ulli12

  1. hello,
    I would like to replace R7 with a shunt resistor of 0.0075 Ohm,
    I assume this will have an effect on R17 & R21.
    P2 should stay 10k (I already have this one).

    -How can I calculate the new resistorvalues?
    -R7 limits the max possible (short cut) current in the circuit, maybe I could increase the resistors at the 2N3055 output to ie 1 Ohm to compensate for this?

    thanks

  2. I noticed the new power supply schematic has 2 2N3055 power transistors in parallel.
    The original schematic only has only one.
    Is the "new" power supply also limited to 3A or is it 6A? (assuming the transformer & heatsink are ok)
    If more than 3A is possible, does one only has to change the setting of the current trimpot?

    thank you

×
  • Create New...