ESC is the abbreviation of Electronic Speed Controller

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Relay to power ESC

I am want to create a switch that will power my microcontroller as well as the 2 ESCs that control two brushless motors. The ESCs run at 30A thought the motors only require 13A. I am thinking to ...
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36 views

Why do I need an esc to control a brushless motor if I can use pwm? [duplicate]

I'm looking at building a drone and everywhere seems to suggest that I need to controll the motors with an esc. It seems I send a signal to the esc with pwm. If I search "pwm brushless motor" I get ...
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48 views

FPGA based BLDC control [closed]

I am designing Zynq-7000 BLDC motor (actually 4 of them) control solution now for low voltage (7.4V/11.1V/14.7V) application - low voltage quadrotor flight controller. I want to use that dev kit as ...
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50 views

Regenerative braking with electric bicycle hub motor [duplicate]

What kind of circuit would be required to implement a regenerative braking system on a electrical assisted bicycle with a motor like this? The motor is brushless and the kit comes with a big ESC box....
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45 views

Micro controllers with high speed switching capabilities

I am planning a ESC for use with a 5500KV brushless motor, running on duel 4 cell Lithium Polymer batteries, I have noticed that in most speed controllers they use an Atmega to control the switching ...
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55 views

How a BLDC work

I am working on a controller for a Brushless dc motor and I watched a tutorial about this (the only one that i found and that wasn't just a demonstration), but the problem is that some thing aren't ...
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2answers
159 views

PWM vs ESC for speed control for Arduino quadcopter

I'm from a computer programming background, but I'm interested in combining hardware with software, so I'm playing around with Arduino. Currently going through things on things needed to build a ...
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24 views

How to implement a BLDC for variable torque in its phase (InstaSPIN, TI)

By chance I read this patented method to control the rotor pitch without a swash plate usually a helicopter, by adding two parallel hinges on each blade root. When add torque to spin it the pitch ...
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80 views

How to control ESC (electronic speed controlling) using a micro controller.?

I found on internet in some articles that only customized ESC's for brush less motors can be controlled with a micro controller not ESC's (ESC's for brush-less motors) that available in market. is ...
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88 views

Quadcopter ESCs heating up [closed]

I have 4 Turnigy Plush 25C ESCs plugged into a 3 Cell(11.1 V) 2200 mAh battery and the ESCs get extremely hot very quickly. They also fail to power the main board (CC3D) but will still run the motors ...
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54 views

Fuse and fuse holder

Intro I am currently working on an e-board. my esc is a vesc, which has the following ratings: Voltage: 8V – 60V (Safe for 3S to 12S LiPo). Current: Up to 240A for a couple of seconds or about 50A ...
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115 views

PWM input specs of Hobbywing Quicrun WP-1040 ESC

What are the controlling input specifications of a Hobbywing Quicrun WP-1040 Electronic Speed Controller (ESC) for brushed motors? I assume it should use the standard PWM with 1 kHz frequency as ...
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144 views

Control speed of motor with an AVR through a ESC

I have a XRotor 40A ESC and I started working on controlling it with an AVR micro. I have connected everything: motor, battery and ESC, and connected the ESC input wire to the micro. The code on the ...
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297 views

Can I connect multiple brushless motors and ESC's to a single GND in Arduino Uno?

The main aim is to connect 4 motors in parallel each with separate ESC's to a single GND. I want to do this because there is a limited number of GND sockets built in the Arduino microcontroller. I ...
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0answers
60 views

When do you use a brushless motor driver and when do you use an ESC?

I'm trying to build a drone from scratch on my ARM microntroller on a Tiva C series development board. I know you need a motor driver(controller) to control a motor, but in the case of a brushless ...
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70 views

ESC to convert AC to DC?

I'm starting a project where I want to use a BLDC motor as a generator. I understand that BLDC's need an ESC to be controlled. Essentially an ESC converts DC power into AC and provides the necessary ...
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2answers
496 views

ESC motor and battery matching

How can you tell if an ESC, brushless motor and Li-Po battery will work together. Specifically, I have a A2212 Outrunner Brushless Motor KV2200, 30A Brushless Speed Controller ESC and I am looking for ...
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1answer
203 views

MOSFET Driver Stress

I am using an Allegro Microsystems A4935 3-phase MOSFET driver in a brushless speed controller. I recently got the motor spinning, but when I began increasing the voltage, my commutation started to ...
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74 views

Using Esc without BEC with lipo batteries [closed]

I have an ESC which doesn't have a BEC. Is it possible to use without a BEC directly with 3S lipo batteries
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1answer
103 views

Multiple PWM signals from a single audio channel

Here's my project in a nutshell: I'm building a quadcopter and I need to control each of the four motors independently. I'm using an iPhone as the "brain" of the quadcopter, with of all the control ...
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1answer
257 views

ESC scheme ADC problem

I made own ESC board. Here is schematics: First, I implemented the cycle of 6 combinations of switching signals: A_H, A_L, B_H, B_L, C_H, C_L in loop using delay time before switching to next ...
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61 views

Bldc motor driver compability

I looking for a drive for my sensorless bldc motor for a project of mine. 1)Will I be able to drive my motor with ESC(electronic speed controllers) used to RC hobbyist powered by Smps. 2)what are ...
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1answer
195 views

How can I switch two wires using solid state relays?

I want to add a "reverse" function to a brushless motor ESC - in theory, it can be done by simply switching any two of the three output wires - I would like do to it via solid state relays, but I am ...
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426 views

What does PWM width control in brushless motors?

For servos PWM controls angular rotation - for example 1ms width means 0 degrees and 2ms means 180 degrees (it is PWM width is proportional to angular rotation). I am not sure what PWM width ...
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381 views

BLDC max speed KV or Hz?

So from what I've understood, the KV rating for a motor gives us the rotor speed based on the voltage applied at the phase of the motor. Having looked a bit deeper in ESC / inverters, I've come up ...
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260 views

Will LiFePo4 work with ESC for LiPo?

Im just a little bit confused wether if LiFe batteries will work the same with an ESC (Electronic Speed controller) Whats making me confused is that in the description they only talk about LiPo ...
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245 views

What determines BLDC rotation direction when using trapezoidal commutation with BiPolar Switching?

Block commutation seems simple enough, the rotation is determined by the order in which the 6 step sequence is executed (ex. cw 1->6 or ccw 6->1) What's confusing is how bipolar switching changes ...
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2k views

BLDC motor without esc

I have an ESC and a brushless DC motor. I am interfacing the ESC to the motor. But I am not getting what I want, so my question is, can I directly connect the motor to the battery without taking the ...
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254 views

Initializing the ESC through microcontroller

I have an esc and a brush less dc motor. the connections are given in the pictures. i have written the program for the micrcontroller such that it send 1ms high 19ms low pulses to esc for 5 seconds. ...
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2answers
128 views

ESC not starting the motor

I have a 20A ESC, I have connected it to the brushless dc motor as shown in picture. When i apply a 1ms + signal with rate of 50hz it produces beeps but doesn do any thing. i have connected the wire ...
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2answers
118 views

How will the current move?

I hope I've come to the right forum about this... I'm planning on building an e-bike using RC components, except I'm not going to use a transmitter and receiver. Instead, I'll use a Servo Tester to ...
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1answer
2k views

What's the relationship between ESC pwm input and output?

I'm using ESC(Electronic speed controller) to control outrunner brushless dc motor. As you know ESC detects ppm signal between 1ms and 2 ms approximately. So my ESC detects signal between 4% and 9% ...
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46 views

Continuous charging and varying load on 48v AGM - Will an ESC work with a battery that is being charged?

So, in a lightweight IC/electric hybrid motorcycle I am using a small 4-stroke engine to turn a Brushless RC motor (the generator). Then a 3-phase rectifier bridge to supply 59.2v DC @ 12amps to a 48v ...
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434 views

Controlling an ESC for Brushless Motors with an RPi

Originally posted on Robotics, but guess it's not active enough. I'm looking to build a new (first) quadcopter without the conventional flight controller and radio, with an onboard RPi and applying ...
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144 views

What are the two big transistors on a ESC

Looking at an commercial electronic speed controler for a brushless motor, there is two big transistors on one side. For controling a motor, you have to switch the current on three wire, so you need ...
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1answer
4k views

Do I need a resistor when controlling an ESC with an Arduino?

I am planning to connect one of my arduino's PWM pins to the input pin of an esc and the GND pin to the GND pin of the ESC, which in conjunction with the servo library should allow me to control the ...
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1answer
923 views

How can I fix this ESC circuit?

What happened: Two of the blue wires touched while an 11.1v battery was hooked up and POP What's in the photo: Yellow is the heat shrink wrapper I cut open the material with square impressions on ...
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105 views

Both USB and ESC power options

I am working on a flight control board inspired in this Sparkfun board: http://cdn.sparkfun.com/datasheets/Dev/Arduino/Boards/RedBoard-v21.pdf It is basically an Arduino UNO with a FTDI chip ...
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531 views

Is a 600+Hz R/C Servo/ESC refresh rate possible?

In the R/C multirotor scene, the trend at the moment is to have very high refresh rates on your ESCs (speed controllers). My understanding of how servos/ESCs are driven is a 1-2ms pulse is sent to ...
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382 views

How accurately can an ESC detect the number of RPMs?

I am working on a project involving brushless motors, so I got an ESC to power them. The problem, is that I need to accurately control the number of RPM. Can an ESC, like this one, control the number ...
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393 views

Current usage with multiple PWM controlled motors

I have a circuit that can use 25 A of current max, it is on a 25 A fuse. I am looking to control 4 DC brushless motors using ESC's. The trouble is that the motors are rated at 7A max current. I know ...
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810 views

How do I control a brushless DC motor without an ESC with Arduino

Is there a way to control brushless DC motor removed from a CD-ROM drive without using an ESC by using an Arduino.
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149 views

Calculating DC Brushless Motor Position

I am using a brush-less motor in one of my projects and I need a decent method of sensing the motor position so I know what coils to turn on and off. I looked a bit into sensing Back-EMF, but I did ...
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76 views

Safely Driving a Brushless Motor

I am currently building a quad-copter out of an Arduino. I decided to make my own ESCs using MOSFETs, EMF sensors, and the Arduino. These are the motors that will be driven: http://www.hobbyking.com/...
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1answer
1k views

Homemade Brushless ESC

I am currently working on building a quadcopter with brushless motors. I decided to try to build the ESCs by myself with some MOSFETs. I am using an Uno as the main controller on the receiving end. ...
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1answer
1k views

How to use Turnigy MultiStar ESC with generic microcontroller? [duplicate]

I just got the Turnigy Multistar 20 Amp Multi-rotor Brushless ESC 2-4S. I have a motor and a battery hooked up to the ESC. On the three pin connector, I attached the brown ground wire to a ground pin,...
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269 views

Selecting MOSFETs for Motor

I want to implement a driver circuit for a (sensored) motor that I am purchasing which has the characteristics (on the shopping website): Max Amps: 16 Max Power: 350W ESC: 35A KV: 1900 The name/...
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431 views

CX-20 Quadcopter Part

One of the ESC's on my quadcopter is missing a component. I am unsure what this component does or where to find a new part. Is it a sort of resistor?? What size? it features no markings that I can see....
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2answers
395 views

Connecting 4 ESCs in parallel

Background: I'm building a quadrocopter. In such RC models, usually brushless engines are being used and these require ESCs (Electronic Speed Controllers) to work properly. Most ESCs are equipped with ...
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2answers
591 views

Electronic Speed Control Concepts

I am a programmer who has never worked with electronics before. I am learning the concepts and hoping to build a quadcopter, with the control software entirely written by me. Motor control seems to be ...