PhotonicDrive - BLDC Monolithic Analog Closed Loop Feedback System
I narrate you through my research and incremental implementation of a Monolithic Analog Closed Loop Feedback System for my BLDC Platter Motor. The final perfected feedback system will come standard with the Vinyl Record Cutting system I'll be selling soon called PLS-21. Until recently, I've been using a hall sensor, the magnet poles on my rotor (affixed under the platter), a small bit of circuitry, and a microcontroller with custom speed regulation code I created. This has worked ok. But, it just wasn't the stability that I wanted for cutting/embossing.
I decided to take a new approach. This required me to research exactly how all this is done in other systems. Specifically the Technics SL1200 Turntable. I literally gave myself an engineering crash course in Feedback Systems which is a fairly complex topic. But, as usual, I immerse myself, I identify the keywords, and I use those to follow the rabbit holes further. The data permutates and the relationships evolve in my brain. And, by the end, I start to understand all the things that were gibberish at the start.
In this video you'll see that progression. You'll see me incrementally tinker with two new forms of feedback, ultimately perfecting one. Then use that refined feedback in an analog operational amplifier processing chain which applies that feedback to a drive signal that is powering my motor. Why did I call this system PhotonicDrive? Watch to find out! And, to see what's coming next!!!
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James K. Roberge Links:
MIT Open Courseware - / mit
Professor James K. Roberge Lecture Series
MIT Electronic Feedback Systems (1985) - • MIT Electronic Feedback Systems (1985)
Complete Roberge Course Online - https://ocw.mit.edu/resources/res-6-0...
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Dr. Santanu Chaudhury Links:
NPTEL Electrical Engineering - / nptelhrd
Dr. Santanu Chaudhury Lecture Series
Electrical - Embedded Systems playlist - • Electrical - Embedded Systems
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Also, if you like Quantum Mechanics you should have a listen to this MIT Open Courseware lecture series. Very, very good stuff.
Allan Adams Lecture Series
MIT 8.04 Quantum Physics I, Spring 2013 - • MIT 8.04 Quantum Physics I, Spring 2013 (2...