594 Results for "bldc"

Why are Brushless Motors better than Brushed Motors?
Hacker page by Mark Liu
The reasons why brushless motors are better than brushed motors are as follows: 1. Brushless motors run faster than brushed motors With brushed and brushless motors having the same rating, the brushless motor will be faster because it is more efficient...

A different approach
Log from Droidbot 07 - Wheeled-Quadruped
In order to help me decide on whether to proceed with PAMs or switch to motors, I made a crude model of a leg. It's difficult to see here but there's 4 PAMs for the hip (up/down & left/right) and 2 PAMs for the knee. The paracord "tendons" that attach...

MORPH : Modular Open Robotics Platform for Hackers
Details from MORPH : Modular Open Robotics Platform for Hackers
Why The robot revolution is happening and it's in need of more open and modular technology! Providing an open source platform to build a robot will help anyone having a robot solution in mind to jump start development for that solution. Not only a small...

Field Weakening Support
Log from Axiom: 100+kW Motor Controller
That's right, Field Weakening! A major milestone for the VESC platform! In our public repo we pushed the code to add support to FW to set the motor speed beyond base speed, and Max Torque Per Amp support, intended to drive IPM motors. We'll...

MTPA merged into VESC!
Log from Axiom: 100+kW Motor Controller
Another performance contribution to VESC from powerdesigns! Now that we earned some deep insights about the inner workings of IPM machines, lets recap what is MTPA about. MTPA stands for Maximum Torque Per Amp, which means that for a given current flowing...

unlocking pcb features
Log from custom bldc motor board using fpga
The PCB has arrived and assembly by hand took less than an hour. It consists of a DRV8323HRTA mosfet driver from texas instruments. Six mosfets for controlling three phases and three TLI4970 current sensors from Infineon on each phase. The rest of the...

Log 3 - 12th March
Log from Open Source Spherical Motor
Lots of progress :) Design Design has been finalised, with changes only to be made for tweaks in manufacture. The plan is to produce 3 separate devices that can all be assembled on the same rig. i.e. they are all modular devices. Device #1: AC Induction...

HoloLamp - Between display concept & physics class
Details from HoloLamp - Between display concept & physics class
Why? I was curious to experience how it looks and find out if it works. It might also be a slightly more engaging alternative/addition to showcasing the uncertainty principle with two razor blades and a laser. How did it turn out? Better than expected....

Windturer-P4 design is ready!
Log from 3D PRINTED PORTABLE WIND TURBINE
I am happy to say that you are now ready to download all the Windturer-P4 files. With these files you can print all the pieces. You also have the possibility to modify what you want in your favorite CAD program, depending on your goals and needs. The...

Bipolar Single-Stepping Thoughts
Log from CD/DVD mechanisms and cartesian thinggie[s?]
The sled-motors in most DVD-drives are usually Bipolar Stepper Motors. These are stepper-motors with only 4 wires (whereas Unipolar Steppers usually have 5 or 6 wires).In a bipolar stepper, the wires are paired-up to electromagnet-windings. But the separate...

Combat Covid-19: Electric Mask Solution
Details from Combat Covid-19: Electric Mask Solution
At the beginning of the year 2020, a sudden outbreak of COVID-19 swept the world, causing huge human disasters around the world. Until the vaccine comes out, the most effective defense we can do is to wear a mask. Currently, the most effective masks...

[E1][R] Taking load cells out of pocket scales
Log from Tetrinsic [gd0041]
Cheaper Load Cells So I was watching this teardown video of scales because Detail is considering them for one of his projects and I was wondering if I should chance the 300g load cells for more precision or stick with the planned 750g. I thought...

Mixer seal, take 25.
Log from Arcus-3D-M1 - Full Color Filament Printer
I don't know that is is take 25, but there has been a whole lot of them.I've got a really good feeling about this one! It's tough, the seal portion is self aligning, and I was able to get some pretty good tolerances (with iteration).This one pulls on...

The evolution of FlexSEA prototypes
Log from FlexSEA: Wearable robotics toolkit
Before I adopted the business naming convention (Plan, Manage & Execute) the motor drivers were named PWR_STG, short for Power Stage. The FlexSEA-Execute 0.1 boards that you can see in most of the pictures is the 3rd prototype generation. How did I start...

A little background
Log from Brushed DC Servo Drive
This project came to be when I became tired of searching for a commercial option for closed loop position control for a CNC machine I'm developing. The majority of the retrofit CNC drives I found were stepper motor drives, and altough many brushed or...

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