Re: Bulletproof your WG6100!

At 10:53 AM 1/20/98 -0800, Al wrote:
>>"Here are some specs for consideration:
>>They are *very* fast, clamping time less than 1 pico second!
>>Peak pulse power dissipation: 1500W
>>Steady state power dissipation: 5W
>>Forward Surge Current, 50ms, 200A
>>Have various breakdown voltages; some to consider are: 27V, 30V, 33V,
51V, 68V
>>They come in a large diode package (DO-201) so could easily just be
>>soldered directly onto the transistor socket.
>>Are relatively inexpensive: $1.36 each for the ones I am looking at.
>>
>>Thoughts?
>>-Anders.
>>"
>
>
>Sounds great! I have two breadboards that I started to put together
>a while back with a WG and G08 deflection board on each so that I
>can easily bench test them and get at everything under load. It
>would be simple to add them in to get before/after scope traces..
>

Well shit! If you are willing to take this on and test them, since it
sounds like you already have a testbench setup, then go for it!
You can get the TVSs from DigiKey -- look in the DigiKey catalog index for
TVS(Transient Voltage Suppressors).
The ones I was looking at are the 1500W unidirectional type -- probably
best to get the highest power rating!
For the WG, either the 33V -- DigiKey p/n 1.5KE33ADICT-ND $1.36,
or the 51V -- DigiKey p/n 1.5KE51ADICT-ND $1.36.
The breakdown voltage should be some factor higher than the max operating
voltage so we don't clamp the picture -- like maybe 1.2 times the max
operating voltage and then round up to the nearest device available.
Then it would be cool to look at some scope traces for with and without TVSs.
-Anders.

 -----------------------------------------
| Anders Knudsen
| ASIC Design Engineer
| Adaptec, Inc., Boulder Technology Center
| anders_knudsen@btc.adaptec.com
| http://www.adaptec.com
 =========================================
Received on Tue Jan 20 11:20:30 1998