Megawatt Bi Polar Transistor Upgrade
I have ventured outside of my pay grade (experience, expertise and knowledge) I would love to upgrade the standard 2SC3320 transistors, with this entry... FJL6920TU Voltage E rating o...
Forum Discussion
The voltage comes "automatically" with the gain in current carrying. 500 PIV is plenty. Upgrading the I tried to keep gain differential as small as possible. Needs more study on my part. Trying to keep this upgrade rational. Paralleling the Bi-polars means a major design change of the board, same for adding a darlington to aid the driver Q1
Upgrading the 2SC3320 is not a cut & dried process. But a definite unknown is whether the FJL6920TU is the wisest alternative.
I am trying to increase the I capacity of the Q2's. Obviously 15-amperes is insufficient. The gain difference troubles me. It sure would be nice to find a single component upgrade. Having a 40+ ampere adjustable power supply that can live for several thousands of hours maxxed-out appeals to me.
But then a person can spend free time popping Budweiser's and watching NASCAR, the movie, or Dukes of Hazzard reruns. I prefer to work as a relaxation.
This may change after a neurosurgeon fixes my disc. The idea of returning to trouble$hooting cruising $ailboat electrical$ has great appeal. For now, I must limit hobbies to what I can physically do.
Upgrading the 2SC3320 is not a cut & dried process. But a definite unknown is whether the FJL6920TU is the wisest alternative.
I am trying to increase the I capacity of the Q2's. Obviously 15-amperes is insufficient. The gain difference troubles me. It sure would be nice to find a single component upgrade. Having a 40+ ampere adjustable power supply that can live for several thousands of hours maxxed-out appeals to me.
But then a person can spend free time popping Budweiser's and watching NASCAR, the movie, or Dukes of Hazzard reruns. I prefer to work as a relaxation.
This may change after a neurosurgeon fixes my disc. The idea of returning to trouble$hooting cruising $ailboat electrical$ has great appeal. For now, I must limit hobbies to what I can physically do.
