Breadboarding and Debugging the Triangle Core - Exploring Analog Audio Synthesis ep9 скачать в хорошем качестве

Breadboarding and Debugging the Triangle Core - Exploring Analog Audio Synthesis ep9

Triangle Wave VCO Core Part 2: Breadboarding and Troubleshooting Exploring Analog Audio Synthesis, episode 9 Part 1 presented a design ov a triangle-wave core for a voltage-controlled oscillator. In part 2, we build it up on a breadboard, fixing at least half a dozen bugs as we go. This pair of episodes brings together many threads that we've followed in the last couple of months. Our oscillator uses a current source, regulated by a bandgap voltage reference. It uses an SPDT version of a saturated BJT switch. It incorporates a current mirror and an op-amp integrator. And our component selection runs through a bunch of the calculations from our earlier episodes. Schematics, Python script that computed component values, and CircuitJS model are all on the project GitHub: https://github.com/kennykb/kevins-cav... TIMELINE 00:00 Intro 00:40 TL431-regulated current source 02:00 SPDT switch from two BJT's 04:19 Current mirror 06:11 Integrator 07:19 Comparator 09:48 Initial tests 11:42 Rescaling comparator output 13:41 Retesting with comparator change 14:49 Next steps 16:37 Outro CREDITS Images: "Cain by Henri Vidal, Tuileries Garden, Paris, 1896" https://www.flickr.com/photos/proimos..., © 2009, Alex E. Proimos Licensed under Creative Commons: By Attribution 2.0 License https://creativecommons.org/licenses/... "Dunce" https://flickr.com/photos/scjn/345091... © 2009, Flickr user '~Pawsitive~Candie_N' Licensed under Creative Commons: By Attribution 2.0 License https://creativecommons.org/licenses/... Music: “Light Sting” Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/b... “Apero Hour” Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/b...