Re: Design Suggestion Requested

On Wed, 08 Apr 2009 14:46:22 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@xxxxxxxxxxxxxxx> wrote:

On Wed, 08 Apr 2009 13:44:05 -0700, Joerg
<notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx> wrote:

Jim Thompson wrote:
On Wed, 08 Apr 2009 12:04:31 -0700, Joerg
<notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx> wrote:

[snip]
Essentially similar to patient isolation in medical devices. I had such
opamps riding out 5kV defibrillator pulses. Looks like a speck of dirt
on a gigantic tsunami. The TUEV guy was mighty impressed that it didn't
blow out (he scooted his chair to the other corner of the room before I
pressed the big button).

Around 1980 I was designing an unusual, and very cheap, method to drop
voltage from the AC-line.

All the sales staff were all agog.

Someone told them I was about to give it its first test, so they all
came into my lab to see.

With everyone crowded around the bench I pressed the button.

Ka-blooie!


Reminds me when you were sure you had designed an indestructible SMPS
and then the boss rocked the power switch.

Wasn't the boss, it was my digital equivalent at GenRad Portable
Products Division.



Then the line cord burned the length of the bench like a dynamite
fuse.


I saw that at an Italian campground, sitting right next to the owner.
Phsssouiesssst ... crackle ... kapoof ... tzzzzt ... He poured us all
another round of Chianti Classico and said "It'll burn itself out and
then I'll fix that tomorrow, or some other time".


To this day the sales staff think I did it on purpose, just to keep
them from lurking in my lab ;-)


So, did ya?

No, I neglected to include a hold-off during first application of
power, so two TRIAC's fought to the death ;-)

...Jim Thompson

I should point out I haven't had a "boss" since '73. Always been by
contract. In the GenRad case I had a managerial title and benefits.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine Sometimes I even put it in the food
.

Relevant Pages

  • Re: *** RED ALERT *** EVIDENCE IN DANGER *** RED ALERT ***
    ... You can't reason with someone whose argument boils down to "reason ... The boss is always right. ... ...Jim Thompson ...
    (sci.electronics.design)
  • Re: PIN Diode Ratings
    ... Hmm nothing I ever do is perfect. ... When the boss is wrong refer to Rule ... ...Jim Thompson ...
    (sci.electronics.design)
  • Re: Digitech Jam Man users??
    ... Jim I have a brand new boss I'll sell if you need one, ... can layer multiple loops for a "band in a box" type background to play ... Historically, Digitech pedals haven't been the most reliable, sought ... Jim Whelan ...
    (rec.music.makers.guitar.acoustic)
  • Re: Wonder why................
    ... new boss, ... But either way, the selfishness of ... salty, Jim H and others have ruined this group indeed... ...
    (rec.boats)
  • Re: up to them
    ... "Watch them, Jim." ... “You know, boss, they might figure someone is up to them." ... Just maybe, I surmise, it might have been partly motivated by the idea in the speaker's head that there was some kind of "knowledge race" between them, and that the police had caught up in some specific way. ...
    (alt.usage.english)