Hi all,
Just a thought, but having seen the pain people go through with insulating the cans on multi diode rigs to allow the use of low side drive on positive supplies, the following thought occurred.
Why not use a negative supply and connect the anode (and can) directly to ground?
Something like this:
Obviously not complete, but it shows I think the basic concept.
You could even use an off the shelf low side driver if you got a little sneaky with the modulation input (I like current mode for getting such things across unknown voltage drops myself, but there are many ways to do it).
This would allow for one of those multi diode rigs to be built without needing to fart around insulating every diode mount (with the associated loss of thermal goodness).
Just a thought.
Regards, Dan,