Kent Lundberg
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doctoranalog.com
Kent Lundberg
@doctoranalog.com
Analog-circuit and control-systems engineer, oscilloscope collector, synthesizer geek, amateur historian, unrepentant bibliophile. He/him.
(Somebody better at Latin than me could make this into a better joke.)
December 9, 2025 at 1:42 AM
But who edits the editors?
December 9, 2025 at 1:41 AM
And I still can't plug it in on the first attempt...
December 3, 2025 at 1:32 AM
Happy birthday to Robert J. Widlar, who would have been 88 today (Nov. 30).
December 1, 2025 at 12:57 AM
To solve the temperature variation problem, Widlar invented the band-gap reference (Fig. 2), now used in voltage references everywhere, and National Semiconductor produced the 5V LM109 (Fig. 5), which is the grandfather of all three-terminal voltage regulators.
December 1, 2025 at 12:56 AM
By which he meant, "The author has previously advanced arguments that misled all you suckers."
December 1, 2025 at 12:55 AM
A year later, in 1970, he unveiled the solution in an ISSCC talk and a JSSC paper: a 3-terminal regular using a band-gap voltage reference. Widlar wrote, "The author has previously advanced arguments against including the pass transistor in an integrated-circuit regulator."
December 1, 2025 at 12:55 AM
Widlar piled on more arguments... circuit interactions with the temperature gradient, leakage, and cost, are all bad.
December 1, 2025 at 12:54 AM
That's not rain, Greg.
November 30, 2025 at 1:31 PM
You have to get the inflections right, but still... www.youtube.com/watch?v=aNqp...
I Will Kill Him!
YouTube video by Henridellik
www.youtube.com
November 18, 2025 at 10:08 PM
What does the array of ports on the back look like?
November 17, 2025 at 7:56 PM
What’s the Sandbar?
November 8, 2025 at 10:26 PM
And all the cops who promised to quit!
November 5, 2025 at 2:55 AM
(I know this is not an original observation, but Alex Karp‘s TV appearance popped up in my feed like six times today…)
November 4, 2025 at 10:25 PM
The latter named his company after an object in the former’s book... [goose meme] was that object used by the good guys?
November 4, 2025 at 10:23 PM