Need help with a discrete semiconductor diagram

Discussion in 'General Electronics Chat' started by prymal, Aug 3, 2013.

  1. prymal

    Thread Starter New Member

    Aug 3, 2013
    Take a look at the attached picture of the circuit diagram i'm working on.

    I'm trying to:
    1) Calculate the current and voltage drops across each component.
    2) Calculate the power dissipated in the resistors of each branch circuit.
    3) Assume a silicon diode 1N4148 will conduct when a forward potential of 0.7v is applied across it.

    Help with any of these questions would be amazing.

    I don't know what it is but i just can't wrap my head around it!

    Cheers guys
  2. LDC3

    Active Member

    Apr 27, 2013
    Branches 1, 2 & 3 are fairly easy. Unfortunately, the LEDs are likely to have a different forward voltage drop than the diodes, so without more information, branches 4, 5 & 6 are not solvable.
  3. prymal

    Thread Starter New Member

    Aug 3, 2013
    Would i treat branch 1,2,3 as parallel?
  4. BillB3857

    AAC Fanatic!

    Feb 28, 2009

    Trace out the power source for the answer to this question.