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11 Jul 2020 04:29:26 UTC
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Bypass Capacitors in Audio Circuits
I forgot to add a bypass capacitor across the voltage rail of a DC bias supply and it caused my analog signal to bleed through to the output of the circuit when it was supposed to be "off".
Using a combination of calculations and LTSPICE simulations I figured out a capacitor value that should work, then I tested it in circuit. I ran into another signal anomaly but that's for another day...
Download LT SPICE
https://www.analog.com/en/design-center/design-tools-and-calculators/ltspice-simulator.html
SPICE simulation files for this video
https://github.com/GadgetReboot/misc_file_bin/tree/master/2019-05/BypassCapSimulation
Impedance calculator
https://keisan.casio.com/exec/system/1258032649
Patreon: https://www.patreon.com/gadgetreboot
Pinterest: https://www.pinterest.ca/GadgetReboot
Twitter: @GadgetReboot https://twitter.com/gadgetreboot
Background music from the Youtube music library:
A Rising Wave by Jeremy Blake
Ridge Racer by DivKid
...
https://www.youtube.com/watch?v=KidsecXSRg0
Using a combination of calculations and LTSPICE simulations I figured out a capacitor value that should work, then I tested it in circuit. I ran into another signal anomaly but that's for another day...
Download LT SPICE
https://www.analog.com/en/design-center/design-tools-and-calculators/ltspice-simulator.html
SPICE simulation files for this video
https://github.com/GadgetReboot/misc_file_bin/tree/master/2019-05/BypassCapSimulation
Impedance calculator
https://keisan.casio.com/exec/system/1258032649
Patreon: https://www.patreon.com/gadgetreboot
Pinterest: https://www.pinterest.ca/GadgetReboot
Twitter: @GadgetReboot https://twitter.com/gadgetreboot
Background music from the Youtube music library:
A Rising Wave by Jeremy Blake
Ridge Racer by DivKid
...
https://www.youtube.com/watch?v=KidsecXSRg0
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Pinterest: https://www.pinterest.ca/GadgetReboot
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