A Hard disk drive motor has more coils than this simple triphased motor. Practically I have found 24 stable positions. The basis sequence of 6 positions is thus repeated 4 times. And 24 is a very convenient number for a clock !As we have 24 stable...
Time to time work with electronics is deeply confusing.You may have 3 identical FET drivers connected same way, but still - only specific one burns out. Again and again. I've changed resistance (Rgate), and it seems that situation with heating improved...
I'm going to use an STM32 as my microprocessor, and have that driving an L6234 as my 3 phase motor driver.I'm going to build it on velo-board first, but I'll be using the same SMT components I would for the finished product.I can do current control,...
The most simple form of an electric motor is a brushed DC motor where two brushes are used for power transmission and commutation. The disadvantage is the fact that the brushes burn down and need to be replaced regularly.In a BLDC = brushless DC motor...
I recently decided to upgrade the motor on my Rockwell mill. The existing motor is a 3/4hp induction motor and it's OK... but has a bent shaft and mismatched step pulley. I'm upgrading the motor to use a 4kW brushless hobby motor, which is...
I purchased an old, used Lite-On LDW-411S DVD+-RW drive (manufactured in 2003) that someone was selling on eBay and removed the BLDC motor to replace the one that I burned out a few weeks ago due to the chip lock-up/stall issue mentioned in my earlier...
What is a motor controller? Why do we need it? What circuit topologies are commonly used? These are all good questions and I will try to provide a little bit of background from my limited knowledge on the subject.DC Motors:Let us start with the Motor....
Objective Identify the BLDC motor static torquesimply put : How many grams can it hold how far ? PC Gui repo : https://github.com/HomeSmartMesh/raspi firmware repo : https://github.com/nRFMesh/nRF52_Mesh/tree/master/applications/nrf52832_rovarm...
ESC and motor got here right on time yesterday morning. Hobbyking is awesome. Assembled everything last night and powered it up. Everything fit on pretty much the first try and no_smoke.exe appears to be functioning. My wiring inside the stepper carriage...
In 2018, I had two bitter crashes which hurt me plenty. As a result, my front left motor broke some time later. A spring shim got damaged that reduces axial slack inside of the motor. It split into pieces (two of which I haven’t even found, yet) and...
Edit : Thanks for all those who provided valuable references and comments, I realized that sensor-less is not a good idea for my application, as it is low speed and as sensors are becoming more available with reasonable integration effort.____________________________________________________________________Hi...
Experimentation setupThe PS4 Joystick is a good way to manipulate multiple variables simultaneously which is suitable for experimentation. The touch pad adds possibilities for position reference.The Raspberry pi here is not needed for the BLDC control...
I have been experimenting with different motors (generators) in order to increase the generating power of the wind turbine. As I presented earlier during my measurements, the nema 17 stepper motor is only capable of delivering 0.65A of maximum short-circuit...
As a starting point, I highly recommend reading AN857 Brushless DC Motor Control Made Easy & AN885 Brushless DC (BLDC) Motor Fundamentals from Microchip. The So, Which PWM Technique is Best? series from TI will then complement your knowledge of BLDC...
Boards can in from JLC PCB, components can in from LCSC and Mouser.Hand populated the first one, testing as I went. I have a stencil for the next few.A few little mistakes. Auto Power switch over between USB 5V and Battery Voltage had a high forward...