At 03:09 PM 6/24/2004 -0700, you wrote


>Hopefully the transistors share the same heatsink! Then the transistors
>will tend to track each other.

Yes, I just noticed I neglected to mention this...

MOSFETs have a positive tempco of Rds(on). You want them on seperate
heatsinks in order to share current best.

BJTs have a negative tempco of Vbe. You want them on the SAME heatsink.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

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