230 Results for "bldc"

Current sense method used
Log from CM6 - Compliant 3D printed robotic arm
Good read about this topic and where i pulled most of the data: https://www.st.com/resource/en/application_note/an5423-current-sensing-in-bldc-motor-application-stmicroelectronics.pdfIn this project, I used the simplest current sensing method and that...

[T] Looking ahead: USB Type-C system
Log from Tetrinsic [gd0041]
Right now I'm just looking further ahead at the Tetent implementation to see if there's anything else that would be required to connect to a Tetrinsic that can't go though I2C.Essentially, the part that'll likely be called Tetent PCB is a PCB that has 2...

First testing until it blew up
Log from I2C Controlled, FOC capable BLDC controller
I got the boards, soldered the components, and fired it up. Nothing blew up then, but the motor did not work. After adjusting some i2c settings (including turning off OCP (which was not the best idea (although that's what made the motor work (although...

Week 1: Research and more Research
Log from My Journey of Building a Performance Quadruped
I have a huge project ahead of me, and in order to be successful i have to be as prepared as possible. I began looking into a whole bunch of open sourced quadrupeds. I mostly only looked at mammal like robots with two sets of parallel limbs. Not the...

1. Motor selection and control
Log from StrobeTuner
The heart of a strobe tuner is the strobe disk, driven by a small electric motor. It has to spin pretty fast (thousands of RPM), but the only mechanical load is inertia and air drag. The angular speed has to be very accurate and stable. These requirements...

PCB motors suited for laser scanning
Log from prism laser scanner
Abstract: PCB motors seems suited for laser scanning; - speeds seem sufficient - cross scan error is not affected by pcb coils Angular stability needs to be improved but this is seen a relatively trivial issue. Video: Measurement...

Log V: The Pandemic Strikes Back
Log from Open Source Spherical Motor
In a week things move fast! Since my last log the university has shut-down almost entirely (extending and then moving forward the Easter holidays) and the chances of actually manufacturing my design look increasingly slim ... Not least because I'm already...

FIRMWARE V007 IS RELEASED [DUAL CORE ACTIVATED!]
Log from SOLO, A Motor Controller for All Motors
Finally, our breakthrough update is here with parallel processing activation!There is a radical performance enhancement achieved and the FOC loop is running with 140kHz now!To know more please check this link:https://solomotorcontrollers.com/firmware-007-is-released-dual-core-activated/…#servoDrive...

2019
Log from ROBOScythe (lawnmower for meadow)
The ROBOScythe almost ready for use. The new design based on VSLOT 20x20 extruded aluminium The drive system based on two MG996 servos and GT2 pulleys. Side effect: I created a GT2 Pulley pack on Thingiverse. The cutting equipment based on...

Scaling
Log from Anti-grav assist unit
The 4 1000kv motors are a bit unwieldy when testing. Figuring out the configuration, and the cost at quantities above the 4...So scaled down to micro core-less motors.In total we have 40 core-less motors, and 80 micro props. :)Each motor can draw .8A...

Robustness
Log from Calibration and Measurement Tool
While using the tuning feature in my other project BLDC motor controller, I had some issues with the values being written to the target became corrupt. This caused some unintended rotor acceleration when tuning the duty cycle... The reason for this turned...

Multiple boards
Log from Open Rover
So as a result of the change in processors, I have changed the BLDC controller design. This work has been a extrapolation from OpenBLDC, which was my HaD Prize 2014 entry. The design is that the Nucleo will plug into a shield but this will have two sets...

Interference on ground and 3.3V
Log from BLDC motor driver for robotics
I'm trying to build a humanoid robot based on BLDC motors instead of steppers or servos and I'm designing my custom controller board. I'm facing this beginner problem: powerful motor de-stabilizes power supply for the controller. I will write up the...

First working release
Log from BLDC motor driver for robotics
Lots and lots happened since my last post - I think I have done 5 or 10 versions before finally arriving at something that I'm (relatively) happy with.Video first, then a couple of words.The controller emerged as an attempt to build direct-drive...

Operation!
Log from BLDC Variable Speed Water Pump
So, this is the part everyone has been waiting for. Franken Pump drinks its first blood. And by blood I mean.... wait, Frankenstein doesn't drink blood... Anyways! Horrible humor aside.. The operation of this pump is exciting! It's probably...

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