257 Results for "bldc"

[M][L] Dual 1.14" PCB (and prototype's CAD and eCAD finished)
Log from Tetrinsic [gd0041]
So I've spent the past 6.5 hours working though Fusion 360 crashes to bring Tetrinsic v361 into existence. I've replaced the old 1.47" pad with a new custom pad for a PCB that connects the two screens, converted the FPC of the displays into sheet-metal...

Slightly misapplied: High side FET gate input
Log from DIY 1.3 GHz FET Probe
The only low-capacitance probe I currently have is one of these FET Probes. And I had to have a look at the gate signal for a high-side FET in a BLDC motor controller. So why not try it with this one! Here's the schematic for the gate driver and dual...

Backyard's first tests of prototype 2
Log from 3D PRINTED PORTABLE WIND TURBINE
I needed to do these tests because I have to decide if I need to use gears or other power transmission mechanisms, in which case I would change the design a bit. It is not enough to make the propellers rotate, it is necessary to generate an adequate...

New changes to Windturer_P4!
Log from 3D PRINTED PORTABLE WIND TURBINE
Hi everyone, I have been making some changes and now I share with you the files of some variations that I have been making. You can download the pieces from the files section.I have developed a new articulation system for the tail. With the new parts,...

Wrong way, Hal
Log from A Wheel
Or I can just swap the motors. That worked.Looks like I swapped the controllers from left to right as leaning forward goes back and vice versa, but hey... it powers on. It has some scary acceleration on that un-inflated tire, while...

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...

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...

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...

[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...

|<
<
12
13
14
15
16
>
>|