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Old 15th June 2009, 07:15 PM   #19571
syn08 is offline syn08  Canada
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Current Controlled Current Source. A simulation thingie.
 
Old 15th June 2009, 07:41 PM   #19572
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Perfect "fake" current mirrors. I think Edmond dispensed with some visually confusing cross-coupling by giving them gains of + or - 1. Unfortunately in SPICE they are on occasion happy to have 1000A and/or 1,000,000 Volts across themselves.
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Old 15th June 2009, 08:03 PM   #19573
dimitri is offline dimitri  United States
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Hi Scott,
What about this one? This is expired long ago.
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Old 15th June 2009, 08:31 PM   #19574
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I don't know if that one is for linearization? The figure 4 on the patent is interesting though. Complimentary symmetry in 1967.
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Old 15th June 2009, 08:58 PM   #19575
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For complimentary symmetry have a look on 3530391

The Zener between emitters in 3497824 has the same purpose as Q5 and Q6 in 6963244
 
Old 15th June 2009, 09:56 PM   #19576
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Sorry guys, I'm just coming home from another 'pub' and not in the mood to explain MicroCap symbols (edit: which are self-explanatory) for a current mirror (with a positive or negative gain of 1).

Cheers,
Edmond.
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Old 15th June 2009, 10:15 PM   #19577
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Default tanh stuff

Quote:
Originally posted by dimitri
Hi Scott,
What about this one? This is expired long ago.
Hi Dimitri,

Apart from performance issues, I think that basically the idea relies on the same principle (i.e. tail current modulation).

Cheers,
Edmond.
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Een volk dat voor tirannen zwicht, zal meer dan lijf en
goed verliezen dan dooft het licht…(H.M. van Randwijk)
 
Old 15th June 2009, 10:21 PM   #19578
dimitri is offline dimitri  United States
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Quote:
I'm just coming home from another 'pub'
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Old 15th June 2009, 10:50 PM   #19579
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Default Pub

Almost correct. I visited Hoppe (the most famous pub in the Netherlands) only 50 yards in the vicinity of the "Dampkring" (and my apartment).

Cheers,
Edmond.
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Een volk dat voor tirannen zwicht, zal meer dan lijf en
goed verliezen dan dooft het licht…(H.M. van Randwijk)
 
Old 16th June 2009, 03:07 AM   #19580
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1967 beat me by a year, but I used it for a different reason.
 

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