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Author Topic: 555, PLL, ... inventor died  (Read 2861 times)
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mare69
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« on: August 16, 2012, 10:34:37 22:34 »

Hans Camenzind, the analog guru who invented one of the most successful circuits in electronics history, the famous 555 and introduced the concept of phase-locked loop to IC design, passed away in his sleep at the age of 78 on August 15, 2012. He designed the first integrated class D amplifier, he also wrote a great introductory book on analog chip design called "Desigining Analog Chips".

His analog circuits "bible" can be downloaded form his website at:
http://www.designinganalogchips.com/_count/designinganalogchips.pdf

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PeterMcMonty
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« Reply #1 on: August 17, 2012, 12:01:23 00:01 »

Thanks to Hans Camenzind for his great contributions.
Requiescat in pacem (rest in peace).
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Pasca
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« Reply #2 on: August 17, 2012, 12:59:58 00:59 »

Great MAN!!!
Thanks
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Parmin
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« Reply #3 on: August 17, 2012, 01:15:38 01:15 »

I have used a few of his chips..
I earn my first fee for electronics design using the humble 555.

RIP
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FTL
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« Reply #4 on: August 17, 2012, 08:11:21 08:11 »

I guess a lot of the analog gurus are reaching end-of-life. We lost Bob Pease last year (June 2011) as he was returning from Jim Williams' funeral. Jim Williams was a founder and principle at Linear Technology.
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metal
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« Reply #5 on: August 17, 2012, 01:59:40 13:59 »

does it mean we are reaching the boundary of technological advances?
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nothing to say..
oldvan
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« Reply #6 on: August 18, 2012, 01:17:34 01:17 »

His 78 year monostable flip-flop went low.  I wish we could re-trigger it.
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medik
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« Reply #7 on: August 18, 2012, 03:28:19 03:28 »

555 timer attracted me to electronics and since then I have been addicted to electronics generally.
What a great inventor... RIP
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solutions
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« Reply #8 on: August 18, 2012, 06:29:37 18:29 »

does it mean we are reaching the boundary of technological advances?

Not as long as Sonsivri is alive and kicking

:-)

So the big question arises - were any of these old-fart greats, ones whose last names were on the circuits we studied in school, members here? (don't answer that please, mods - the mystery is better left unanswered).
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Codeman
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« Reply #9 on: August 18, 2012, 10:33:18 22:33 »

I think the 555 was the way in the world of electronics for a lot of us.
It is probably the most know electronic device in the world along with the BC547, the 1n4148 and the 7805   Cheesy

Hans Camenzind as is own place in history. The body gave up, but the soul remains.

Rest in peace.

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metal
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« Reply #10 on: August 19, 2012, 03:43:51 03:43 »

I sold many flashers based on 555! and many of them are still working up to this moment, all of them were built on a small piece of veroboard and dipped in varnish : )
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DreamCat
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« Reply #11 on: August 19, 2012, 10:18:26 10:18 »

“The body gave up, but the soul remains”

well said.
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May be I expressed the wrong meaning, sorry for my bad english. Please correct it for me if you can.
aplank
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« Reply #12 on: August 19, 2012, 10:22:25 10:22 »

At the age of 78 he was an old timer, but we will remember him.
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SONSiVRi
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« Reply #13 on: September 01, 2012, 01:18:33 13:18 »

When I first saw flip-flop effect on the red led in the board that I created with my own hands, I got obsessed with electronics. This is my 555 story from my childhood.
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« Reply #14 on: September 03, 2012, 08:55:18 20:55 »

I'm a noob to electronics really compared to most of the people on here. I use pics, atmels etc but still love making 555 circuits Smiley
RIP
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