VERSION WITHOUT BURNT-IN CAPTIONS WILL BE AVAILABLE AT https://youtu.be/ywOKMxNxeOA
Op-Amp Basics Episode 5: The Precision Rectifier
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In this episode, we look at precision half-wave and full-wave
rectifiers: op-amp circuits to clamp an input signal to the ground
or take its absolute value.
In the process, we learn about op-amp slew rate and how it limits the
performance of circuits that need to make sudden voltage changes.
Schematics of all the demo circuits can be found on the project GitHub:
https://github.com/kennykb/kevins-cave-kludges/tree/main/OpAmpBasics/Ep005-Rectifier
TIMELINE
00:37 Just a diode?
02:10 PSA
03:39 Diode in the loop
05:46 Slew rate
07:44 Avoid saturation
11:26 Absolute value
13:41 Summary
CREDITS
Images:
"The Blob" OpenClipArt user 'kablam'.
https://openclipart.org/detail/28008/the-blob
CC0, https://creativecommons.org/publicdomain/zero/1.0/
TL072B data sheet courtesy of Texas Instruments.
Music:
“Light Sting” Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
http://creativecommons.org/licenses/by/4.0/
© 2025 Kevin B. Kenny