160 Results for "bldc"

Going BLDC!
Log from Silent Orchestra POV aka "Death Ring"
I found a Brushless Washer motor on Ebay, and am going to use this for the drivetrain.Brushed had too many problems at higher RPMs / prolonged usage.Stay tuned!

BLDC testing rig
Log from linear actuations for everyone!
Long time no see! For two months melancholy was my companion, but it seems that season ended x)And I want to introduce BLDC testing rig, as stated somewhere above. Here it is: Designed to measure thrust generated by a propeller, for that purpose...

BLDC alpha-test!
Log from linear actuations for everyone!
I fixed that board from previous update. I wasn't carefull enough and forgot to connect some nodes together, and though MOSFET drivers still die when I power everything with voltages greater than 10V (dV/dT problem?), under that everything works fine....

BLDC controller trials
Log from linear actuations for everyone!
I had an intention to use amazing PowerPak housings for transistors. And guess what? I managed to fail that twice by assigning things to a wrong pins. Firstly, I messed with a gate and after milling second version I realized that drain and source were...

Driving HDD BLDC motor
Log from Hard Disk Drive analog and digital clock
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...

BLDC controller bughunting
Log from linear actuations for everyone!
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...

The very Basics - BLDC control
Log from Smart BLDC controller for eBikes with BLE
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...

Upgrading to a BLDC motor
Log from Rockwell Milling Machine Rebuild
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...

BLDC motor and controller theory
Log from Gator Quad
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....

BLDC Static torque Test bench
Log from Self standing balancing robot
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...

BLDC Motor Problems and Repair
Log from Open esk8 Remote - v1
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...

Feelings of a BLDC Speed & Position Control
Log from STM32 Blue pill IoT expansion boards
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...

Controlling a brushless motor (BLDC): Software
Log from FlexSEA: Wearable robotics toolkit
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...

Centripetal Force and the BLDC Gyrofan
Log from TrillSat
I started to look more closely at the centripetal force equation, since I've been wary of raising the Gyrofan speed higher with its full mass, as I didn't know exactly how much force was being generated. I'd like to ramp the thing up to get appreciable...

BLDC/Gyrofan Is Back in Action
Log from TrillSat
I fully charged the two Lithium-ion battery banks (around 8.4 volts in series), but the BLDC problem that I mentioned in my previous log entry still occurred, so I wrote up a small amount of Python and C code to create a new XMPP command called "bldctest...

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