195 Results for "bldc"

Printing started
Log from Dizzy Wolf
Based on my learnings from BLDC controller and custom motor, I'm now going to build and assemble actual 4-legged robot.I have started printing parts but I don't have much to show yet. Just this.I have bought DLP printer by the way, but have not...

RC aircraft and Quadcopter
Details from RC aircraft and Quadcopter
The quadcopter was made from a simple aluminum frame and was driven by four 1Kv BLDC motors. The control was achieved by using KK flight board and RC based. The the fuselage of the aircraft was built from old polycarbonate sheet and the wings were...

Brushless DC motors: microcontrollers & drivers
Log from Supercon talk: a pragmatic guide to motor controls
BLDC motors are effectively Steppers with three coils instead of two (often called 3-phase.) That means three half bridges and three PWM signals will turn the motor. In fact, if you open up a hobby ESC you'll find six mosfets and either an 8051 or AVR.BLDC's...

Developing the Power module (Part 2)
Log from EverywhereElectric
In the last log we showed how the physical inverter design came about, lets look at the motor control signals are generated.We keep going on about sinusoidal control. Here is why.Brushless DC (BLDC) motors are called so because they followed on historically...

Tiny BLDC
Details from Tiny BLDC
The Tiny BLDC board measures 1.3" x 0.9" (33 mm x 23 mm). The reason why we can make a BLDC motor driver so small is because PAC5223 has pretty much all the circuitry required to drive the power FETs. These components are:3 phase pre drive power stage3...

Electromatronics
Log from Kinesthetic Laser Rifle Prop
To make this 'gun' feel like a GUN, I will require some electronics and other hardwares.First, a list! I love lists. Especially numbered lists. They make me feel like I am accomplishing something even though I am not...Components by 'function'::1. the...

Using BLDC motor in low speed
Details from Using BLDC motor in low speed
In this project, we are trying to drive a BLDC motor in very low speed. This means we need to have a very low PWM values update rate. However, the PWM values update rate is constant, the rotating speed of motor's rotor may not being what you expected....

Am I fooling myself?
Log from Droidbot 07 - Wheeled-Quadruped
Do PAMs really have much benefit over motors? Some (subjective) pros & cons of PAMs vs BLDC motors for this application: Pneumatic Artificial MusclesMotors (& gearbox)+ Powerful for their weight/cost.+ Fast.- Have to trade speed for torque.- Do I have...

BLDCiing it forward
Log from linear actuations for everyone!
Next logical step - is to couple theoretical findings with BLDCs, it is fun, educational and even useful at some point! In previous update that was a brushed motor... Pretty unfortunate - it's hard to imagine worse enemy than brushes with that approach....

MoStBLDC - Modular Smart BrushLessDC
Details from MoStBLDC - Modular Smart BrushLessDC
Here are some general goals:By modular i mean, it consists of 1 ... 3 Parts. Mainmodule with µC (Mostlikely ATMEGA, and Arduino compatible) and Motor PreDriver (DRV8301DCAR)Module for Buscommunication (Interfaces UART, I2C and SPI (so you could...

Here we go again.
Log from P2 - Pick and Place for 3D Printers
While I'm waiting for my Jetson to show up, I'm starting with the other stuff.I've been doing a lot of research into accurate open-loop positioning of BLDC motors. If there ever was a perfect application for this, part rotation is it. Basically...

AlexMod | Open loop BLDC motor position controller
Details from AlexMod | Open loop BLDC motor position controller
The onboard microcontroller ATtiny261A generates 3 Phase (3 channels PWM for U V and W phase) 32KHz PWM from Timer 1. This result in resultant vector A.K.A position of the rotor of the BLDC motor. By changing the Sine angle (Step through Sine LUT). We...

OpenLiDAR
Details from OpenLiDAR
So the first prototype is coming together. Changed the Brushless motor from a DJI 3510 to an PM2805 with encoder feedback on the Vertical axis. The first version will use a LidarLite V3, here we need a really slow vertical movement @ 0.01 hz and 3.0...

Why does my stepper motor not Rotate after being connected to the drive?
Hacker page by Mark Liu
Here is a quick troubleshooting guide on how to solve the problem of a stepper motor or BLDC motor not spinning after being connected to a drive. First, we recommend that you perform the following troubleshooting steps: 1. Check all wiring carefully....

How Brushless DC Motor Works?
Hacker page by kellygreene0805
Industrial applications all over the world frequently use brushless DC motors. First, there are DC (Direct Current) motors and AC (Alternating Current) motors. As the name implies, DC motors that employ no brushes are called brushless. While it is clear...

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