252 Results for "bldc"

3D printed hydroelectric power plant model
Details from 3D printed hydroelectric power plant model
Hydroelectric power plant converts the kinetic energy of running water into electricity. The amount of produced energy and the current power of the power plant depends on the drop and flow of water. On the experimental model, the flow and drop are manually...

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...

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...

Teardown: Xiaomi Mi Vacuum Cleaner Mini (EU)
Details from Teardown: Xiaomi Mi Vacuum Cleaner Mini (EU)
In the top of the device, there is a plastic cap holding the motor in place. I undid the three clips by squeezing the device to allow for a bit more wiggle room, then prying with a flathead screwdriver. Under the plastic cap there is a rubber thingy,...

Can a Brushless Motor Maintain a Constant Speed ?
Hacker page by Mark Liu
Can a brushless motor icludes brushless dc motor,dc gearmotor,etc. maintain a constant speed when the load changes? The answer is: yes. If the load applied to a brushless motor changes, whether it increases or decreases, the motor can maintain a relatively...

How to Choose the Right Brushless DC Motor?
Hacker page by Mark Liu
Compared with ordinary traditional motors, brushless DC motors have the advantages of high power density, high efficiency, and long life. Brushless DC motors have a simple structure and few components, so they are easy to maintain and have a long service...

What are the advantages and disadvantages of brushless DC motors and brushed DC motors?
Hacker page by Mark Liu
First, in simple terms, their differences are:Brushed DC Motor has a set of carbon brushes fixed on the rotor that are in contact with the AC excitation electrodes to provide the electromagnetic field required by the rotor; There are no fixed carbon...

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...

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...

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...

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