ODP: Diode Question

[Jim Patchell]

    That seems pretty much correct to me.

    Also remember, the Vd goes down as temperature goes up.  So the
diode that is passing the most current will heat up the most, making
it's drop lower, causing it to take more current, making it heat up
more, causing the voltage drop to go lower, causing it to take more
current......

    -Thermal run away Jim


Roman Sowa wrote:

> All current will not flow through only one diode. It will split
> and how equally the split will be depends on their matching.
> Diode current rises 'e' times (2.7) with every 29mV voltage
> rise, so if diodes differ only by few mV, they will split the
> current about equally (in a manner of magnitudes).
>
> disclaimer: valid for silicon at 290K. This is what I remember
> from school, so it may be totally wrong
>
> Roman
>