File:100Hz-negative-group-delay-wave-1Ghz-bandwidth-opamp.png
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Summary
| Description |
English: An input (green) 100 Hz sine wave centered around 2.5 V is turned on suddenly at time 1ms. This induces instability in the output (red) of a negative group delay filter (presumably due to limited bandwidth of the opamp) manifesting as high frequency oscillations. However in the steady state, the output leads the input by a negative group delay of -1ms. When the sine wave is suddenly turned off after 10ms, the output again becomes unstable as a result of the unpredictable change. |
| Date | |
| Source | Own work |
| Author | Em3rgent0rdr |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
 
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:27, 12 June 2023 | | 1,145 × 668 (20 KB) | Em3rgent0rdr | Uploaded own work with UploadWizard |
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