At 03:20 PM 1/14/98 -0800, you wrote:
>"However you do it, adding current protection to the schematic is easy, =
>but it
>means a bit more hacking on the WG monitor. You'll lose your nice and =
>easy drop
>in replacement."
>
>..ignore my last message about waiting, then.
>
>seems like we went through this a few months ago (and I still haven't
>measured the voltages at the yoke under operation)
>
>where does the overvoltage come from that blows the junctions? if it
>is from inductive voltage kickback, couldn't you put commutation diodes
>across the collectors and emitters, or put a MOV on it?
Yea, or like I said in the last message I sent, put a TVS across the C-E of
the BJTs.
-Anders.
-----------------------------------------
| Anders Knudsen
| ASIC Design Engineer
| Adaptec, Inc., Boulder Technology Center
| anders_knudsen@btc.adaptec.com
| http://www.adaptec.com
=========================================
Received on Wed Jan 14 15:25:46 1998
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