speed controller ?

You can make a washing machine motor with the module and taco run with a potentiometer switch to give you speed control over the motor I have the planes for a hot point motor but not the motor im using !! does anyone have the no how as to with leads to connect to contact mrkeithg.rumsey@tesco.net

Question by rumsey   |  last reply

AC motor speed controller for stereo turntable

Hello Brainiacs, I am wondering about salvaging a electric fan speed controller for my Vintage (1980's) Stereo turntable. I purchased a table from Europe and it ran on 50Hz 240v. But once I rewired the unit for 110v 60Hz it still ran too fast. It is a synchronous 24 pole motor driving a small pulley and belt system. I was told a speed controller would fix the issue by varying the voltage. True? Or if someone could come up with a schematic! ??? Any suggestions? 

Topic by bullit224   |  last reply

Help Motor Control!

Hey guys, I need to create a motor that can have a fader/dial so that I can control its speed (rotations). I figure it must be a simple enough system but I don't even know where to begin in terms of parts. I just need it to be strong enough that I can spin a GoPro camera (fairly light - but not toy car motor weak). Sincerely, Alex

Topic by mrmadsci   |  last reply

DC Motor speed controler

Hi all Can anyone suggest the best way to replace the variable speed trigger of a 18v battery drill, with a remote from the drill adjustable speed control. I want to control the speed and have it stay at the setting until I turn it off or adjust the speed. The drill will be clamped to a board with no battery and powered by a power supply. Thanks for any advice Les

Topic by Les1951   |  last reply


I have a 12dc sever fan installed into and old fridge to be made into a jerky dehydrator. what i need is a simple TWO POWER WIRE IN and TWO FAN WIRES OUT speed controller as the fan empty's the air from the fridge in 2 seconds flat. what i need is a controller with three speeds and an OFF. i can make one very easily from a detailed schematic but please keep it simple

Topic by joypad   |  last reply

Controlling the speed of the ceiling fan?

I have a standard ceiling fan of which the speed can be controlled by pulling the cord. As the slowest of the three speeds is still to fast, I would like somehow to be able to lower the speed. Is there any way of doing this? The fan operates at 220V

Question by nightlife31   |  last reply

ac motor speed control

My uncle recently gave me a compact, functional ac motor with an axial blower attached to it. its a pretty cool thing, and i am planning on putting it in my mac's plexi case (when its built). i have no clue how to vary the speed. from what i found on wikipedia, an inductance motor cannot have speed control. how do i know if this motor is brushed or inductive?? and if its brushed, how do i vary its speed? help!!??

Topic by tech-king   |  last reply

DC motor speed controling Answered

HI! I'm trying to mod my Tascam cassette recorder. I want to be able control speed of the motor. So I bought on ebay PWM controller and after installation thing don't run so smooth as I wish. the problem is ... when pot is all the way down at 7 clock motor is off, when I turn it to 8 a clock motor starts spinning and reaches its full speed at 9 a clock. and from 9 a clock to 4 there is no effect on speed. Please help me! .... my electronic skills are too weak to understand this. p.s it is 12v dc motor and there is link for the pwm I use. http://www.ebay.co.uk/itm/111817741979?_trksid=p2057872.m2749.l2648&ssPageName;=STRK%3AMEBIDX%3AIT Thanks

Question by AndrisT1   |  last reply

DC motor speed controling

HI!  I'm trying to mod my Tascam cassette recorder. I want to be able control speed of the motor. So I bought on ebay PWM controller and after installation thing don't run so smooth as I wish. the problem is ... when pot is all the way down at 7 clock motor is off, when I turn it to 8 a clock motor starts spinning and reaches its full speed at 9 a clock. and from 9 a clock to 4 there is no effect on speed. Please help me! .... my electronic skills are too weak to understand this. p.s  it is 12v dc motor and there is link for the pwm I use.  http://www.ebay.co.uk/itm/111817741979?_trksid=p2057872.m2749.l2648&ssPageName;=STRK%3AMEBIDX%3AIT Thanks    

Topic by AndrisT1   |  last reply

Speed controlled industrial fan

Hi all, For an installation I need a speed controlled fan that I can control via a microcontroller. Is there any industrial fan that you know that allow to be controlled with eletrical signals rather than the usual manual control? thanks a lot!

Topic by amicoleo   |  last reply

How to control the speed of this motor ? Answered

I have this spare Dayton Shaded Pole Motor that I would like to use for a project.  When the motor was removed, just two wires are attached to it to which I attached an adapter plug.  When plugged in to a wall outlet, it obviously runs at only one speed.  I was wondering how I could control the speed of the motor thus enabling me to lower the speed.  Would it be possible to add a dial to lower the speed?   I saw a video on youtube titled How to make a Simple Speed Controller (link: https://www.youtube.com/watch?v=0YZJ0kJEmh0) and was wonder if this would work for my motor? In the video, the guy uses a Switch, project box, and potentiometer.  However, should a rheostat be used instead? (someone posted that in the comments to the video) So, let me know what you think, and how I should go about doing this. Here are the specs of the motor: 1/40 HP 1550 rpm 115V 60 Hz 1.1 Amp Class A Ins, 40 degree C Max. Amb. Cont. Duty Thank you.

Question by Schaf77   |  last reply

controlling speed of dc motor Answered

Hey guys I'm trying to finish a project.  I have a motor thats making a 5 gal bucket spin, I would REALLY like to be able to control the speed but I'm not sure how to go about it.  Right now it's spinning extremly fast and to unstable The motor I used is decently small cgi.ebay.com/DRIVE-MOTOR-DC-GEARMOTOR-12VDC-DRIVE-SYSTEM-NEW_W0QQitemZ300327674056QQcmdZViewItemQQptZBI_Robotics I've read similar problems and ppl suggest PWM what size do I need for the motor I have?

Question by micha3l87   |  last reply

dc motor speed control

I need help regulating the speed of a simple dc hobby motor. i understand that i should be able to do this with a variable resistor/potentiometer but while it does work, it only does so when the wiper gets really close to one end. how do i even it out? i also must admit i don't understand complex electronics and wish to find a simple solution. any help is much appreciated.

Topic by synthetic_iron_oxide   |  last reply

Over voltage on Speed controller? Answered

Hi, Today I found out that my electric scooter has a 36 volt motor and it has a 24 volt speed controller. I'm sure it is 24 volts can I over-volt it to 36 volt with out causing harm it has been OK for a while now but I'm thinking of the poor capacitors there only rated at 25v and that why I dont think it will matter as normally there rated a lot higher than that for a safety margin also sealed lead acid battery's have a nominal voltage of 24v and there charged voltage anything up to 30 volts, I,m just hoping that the MOS-FET's that drive the PWM (pulse width modulation circuit) are rated over 36 volts

Question by Daniel Deacon   |  last reply

Best motor for speed control - ( low rpm - spin 1Lb of coffee)

I'm looking for a motor can have its speed varied, down to 1 rpm if needed and that can be done with a simple circuit. I'm building a coffee roasters. I hear that AC induction motors are hard to have their speed changed. The load will be about a pound or so and the motor will spin a cage full of beans over a heat source.  I dissasembled a bread machine and the motor is induction which I have heard is not able to be accurately speed controlled.  DC or AC?  I've seen electric drills used to spin the bean cage. What about a treadmill motor?   

Topic by fizzzbang   |  last reply

115VAC low current fan speed controller

Greetings, I am fairly new to electronics, and have mostly worked with DC circuits so far.  I have an AC fan I want to use to make a carbon filtered ventilation fan for my soldering station.  I can do this with a DC circuit and DC fan, but when researching how to do it with an AC fan I came up with more questions than I started with... The fan I have is a Nidec TA450AC model A30122-10.  It is about 5x5x1.5 inches, and rated for 115VAC, 50/60Hz, .26/.21A.  I found data on the fan here: http://http://www.nidecpg.com/fanpdfs/ta450ac.pdf In my research so far it seems there might be three solutions: 1> Use a TRIAC/DIAC circuit, 2> Use a MOSFET circuit or 3> Use a microcontroller/PWM circuit.  There seem to be benefits/drawbacks to each method, and I don't know which method to choose, or even if I'm headed in the right direction..  I don't know how to tell if the fan is  single-phase, triple-phase, induction...  ugh.  I am looking for an inexpensive solution I can build myself,  that performs well. Can anyone help me find the right solution for my application?  Or at least point me in the right direction? Thanks much, doval

Topic by d0val   |  last reply

How to control DC motor off and on cycles.

I need to control a radio control boat,  i want to cycle the motor on and off to extend the life of the batteries 6 - 12 v 40A my feed would be a normal radio control speed controller Thanks Ian 

Question by ian.collins.771   |  last reply

12v Electric Motor Speed Control?

I have a 12v electric motor I was given from a camper water pump (at work currently so I don't have any of the specs). I also have a power supply from an LED lighting kit to take the power from a wall plug down to the 12v for the motor. Connecting them directly works fine, but I am trying to make an electric leather burnisher and would like to have a bit of control over the speed of the motor. I have a small 25 ohm rheostat I wired in, and it worked perfectly, but the rheostat began to overheat with in a few minutes. What type of controller would I need to look for? Just not sure where to look when it comes to items like that.

Question by dbgrigg189   |  last reply

Speed control for a 24v to 250w wheelchair motor Answered

 Speed controller for a 24v to 250w wheelchair motor. Can anyone give me a list of parts needed to build  this also a  circuit board diagram showing where to put the components and the size of the PWM that would be required. Thanking you all again. hoplite66

Question by hoplite66   |  last reply

Low Cost DC motor Controler?

I want to power a 90 Volt, 5amp Perment Brush type DC Gear Motor. The, "Variable speed controller", needs to be able to use 115v AC or 115v DC input power, which is selectable by the operator. I have used a Staco variable tranformer which uses 115v AC input and rectified the output to drive the motor. But also need the 115v DC input option.

Question by Realdann   |  last reply

Computer Control

I would like to know how to control the speed of a small DC motor via serial or USB. I have general electrical and programming knowledge, but I have no idea how I would do this. I have found http://www.lvr.com/usb.htm..Any help?

Topic by Crash2108   |  last reply

How do I control this motor? (speed)?

I have a motor 110v 1/3 hp hz 60 phase 1rpm 1750  class B is posible

Question by 3strada1965   |  last reply

automotive starter and dc speed controller? Answered

can I use a 45amp digital dc pwm motor speed controller with an automotive starter? the controller is from quality kits part number :uk1133. or is there another kit  I should be using? thanks

Question by robin67   |  last reply

Speed Control for AC Electric Motors

Can anybody tell me how to build a controller to adjust the speed of an 110VAC electric motor, ( ex: blower motor, fan motor ) I was cautioned about using a light dimmer. bill

Topic by broham   |  last reply

how to control speed of an dc motor?

I have very small dc motor of 5v 650mah and i am using it in my rc helicopter and it rotates very fast so how to controll its speed plz help me i would be thankful for that

Question by sahilnarang   |  last reply

DC motor speed controller layout Answered

Alright so below is a quick picture i drew up of the circuit for an electric kayak idea i have. The drawing is just a rough mock up. I think I'm on the right track, but looking for somebody with more experience to double check it!   Really appreciate any help! Thank you! Below is the link to the PWM Speed Controller i plan to use:   http://www.amazon.com/RioRand-RRCCM6NSPC-Reversing-Adjustable-Controller/dp/B00HTZ5OS2?

Question by ScratchBuiltAircraft   |  last reply

Potentiometer to control DC motor speed

I have a 12 volt fan in my RV. It has a 1.6 amp DC motor. Would a 2 watt, 350 ohm potentiometer be suitable to use as a variable speed control? If not, what potentiometer would I need?

Question by gaugeguy   |  last reply

speed control for A-C electric motor

I want to use a GE A-C motor (5KC33GG101): Connection Type and Voltage Rating in Volts: 115.0 line to neutral single input Rotor Speed Rating in Rpm: 1725.0 single full load Frequency in Hertz: 60.0 input to run a 50' line on pulleys for a Halloween project but it's too fast. Can anybody help me figure out if I can buy/build a controller to run it slower? Thanks in advance!

Topic by mario-alonzo   |  last reply

Speed control for AC electrical motors

I want to use a GE A-C motor (5KC33GG101): Connection Type and Voltage Rating in Volts: 115.0 line to neutral single input Rotor Speed Rating in Rpm: 1725.0 single full load Frequency in Hertz: 60.0 input to run a 50' line on pulleys for a Halloween project but it's too fast. Can anybody help me figure out if I can buy/build a controller to run it slower?

Topic by mario-alonzo   |  last reply

DC motor speed controller questions Answered

In the early stages of planning an electric kayak build. Im Brainstorming ideas on how the propulsion system will work and have a few questions when it comes to DC motor speed controllers.  First off i plan on using a 100W 24v DC motor from a old electric scooter.  Not sure on the type of battery yet but it will be a 24V Now i am fairly experienced with RC Aircraft electronics, but this appears to be a different ball game! After some research it appears i want a PWM Speed controller that can handle at least 24V.   Amps wise i think i want at least 4 Amps. (Assuming my calculation was correct based off the Watts and Volts )  So this is basically more of a "am i barking up the right tree" question!   As i said earlier this is just early planning stages of the build and i want to make sure i don't make any silly mistakes!  Any help is greatly appreciated! Thanks!

Question by ScratchBuiltAircraft   |  last reply

How can I make a really simple speed controller? Answered

I have a 100w 12V 360RPM motor and a 12V battery. I'd like to know how to make a really simple speed controller to control the speed of the motor. thanks Jack

Question by sladek   |  last reply

Wah pedal as speed controller for Dremel?

I was working with my Dremel the other night and I noticed my not-working Crybaby out of the corner of my eye and started thinking that it would be a perfect speed controller for my dremel. I think I'm gonna tear it apart and see what it looks like inside and see maybe where to go from there. Probably would like it to have a footswitch somehow that will turn it off or when it is pushed all the way in it will turn off. Just an idea. If anybody has some suggestions or maybe could build it and make an instructable that would be awesome.

Topic by oopeydoopey   |  last reply

electronic speed control based emp?

Is it posible to use a 20 amp 8 khz esc to power an emp? as far as why, the induction pipe from origin clear i found out runs at 4.8v 20 amps and 2-4 khz. it would be amazing to have my own low scale model of their machines for research and testing. unfortunately my research funding is slim to none otherwise i would try this my self .  if anyone has a good esc that they could try this i would love to see the results. i cant im broke, therefore forced to live vicariously through others

Question by snowfox222   |  last reply


Someone can advice me what switch is suitable to use in my remote control. I had tried push button however it does not compatible with the coding (I'm using chipkit UNO32). My intention is to make the user select AUTO mode or MANUAL Mode. After selecting, the user will be asked to select speed and duration. So this requires a lot of loop-inside-a-loop, if-inside-if etc. When I'm using push button, the microcontroller cannot read the command when the second button is push. I heard, if using push button I need electronic relay. 

Topic by lovetronic   |  last reply

Gs to Speed Converstion

I am looking for the math equation that converts G load to speed using Arduino (https://www.adafruit.com/products/2796)?  I am building a high power rocket data logger/controller. I need to know the speed by using accelerate of the bird. Yes I might be able to use GPS info, but at super sonic speed GPS can not keep track of the speed. The bird is a 2 stage bird. I want to stage when about 40% of the speed has bleed off.  Thanks Rocket Nut

Topic by Rocket Nut   |  last reply

Speed controller for brushless electric bike motor? Answered

I have obtained a 400W 24V 2800RPM Monophase BLDC motor with related power supply and a 24V 40A-rated pulse width modulator unit, however from what i understand the PWM won't give me full control (if any at all) of the actual speed of a BLDC motor. I want my motor's torque to remain relatively intact and for it to cover a range of about 50-300 RPM, with no need for exact control. Are my only choices to build a pulley mechanism or to buy a mechanical gearbox? I'd like to control my motor electronically.

Question by Khalim   |  last reply

Cheap computer fan speed controller used to slow the speed of a DC motor?

I've got a cheap 12 VDC computer fan speed controller (adjusts from 5v to 12v) rated at 1000mA. It's designed to be plugged into a computer motherboard with a 4 wire plug.(green, yellow, black, and blue). It also has an output socket for a fan...looks like 3 wire. I'd like to provide the input of the speed controller with a 2 wire (+ and -) 12VDC, 3A power supply that plugs into a wall socket (110 VAC). I'd like to then use the output socket on the controller to power a 2 wire (+ and -) 12VDC motor (rated at .03A) in order to change its speed. Is this even possible? Is the controller considered a PWM controller? The instructions on the controller says the blue wire is the "control" wire. How would I wire up these components? (110VAC 12VDC power supply, 5v to 12VDC fan speed controller, 12VDC motor).

Question by Springsdude   |  last reply

Help me find a servo speed controller!

I'm motorizing my camera slider (https://vimeo.com/39175570) in order to use it for time-lapses. I'm using a gear motor, a 8ft circumference timing belt (for 4ft of motion), and a motor speed controller.  I am getting the parts from ServoCity.com and McMaster-Carr.  This is the motor I'm planning on using: http://www.servocity.com/html/10_rpm_precision_gear_motor.html And here is the speed controller I want to use: http://www.servocity.com/html/digital_manual_speed_controlle.html A video of it working: http://www.youtube.com/watch?v=R_t1V5MljvY Although that speed controller would work perfectly for what I'm doing, it's $80. Does anyone in this community know a cheaper place to find a similar device? From what I can tell it works like most speed controllers, by pulse-width modulation. Whatever that is. Here's kind of what I'm looking for: http://www.electronickits.com/kit/complete/motor/k166.htm. This may work fine, but it seems overbuilt for the purpose. Would it still work fine on a smaller motor like I'm going to use? Thanks for the help! -Jason

Topic by John Smith   |  last reply

Reduce speed of an RC motor?

I took apart a RC helicopter and stripped everything so its just the motor operated by remote. I plan on attaching a camera to the end if the motor and my goal is to make a pan/rotate base mount thing. However even on the slowest speed (lowest on the throttle) the motor spins way to fast. Is there anyway to control the speed or slow it down? Please Help

Question by jasonduiella   |  last reply

How To Control the Speed of a BIG DC Motor

How would one control the speed of a BIG DC motor used as an engine for a go kart?

Topic by OzoneLab   |  last reply

How do you control the speed of an AC BRUSHLESS motor? (Used on a scroll saw)?

I have a small scroll saw i would like to build a cheap speed controler for It uses an AC motor which appears to be brushless when i dismantled it Could anyone tell me how brushless AC motors work, and how their speeed controlers work (i assume you need to change the phase of the ac current) Many thanks Chris

Question by ooda55   |  last reply

control the speed of the ac fan by pic with PWM

Hello I would like to know how to control the speed of the ac fan by pic with PWM I used optoisolator to protect the pic but the circuit does not work well is the optoisolator doing his duty ? is this circut working properly ? please help me  

Topic by MohamadK4 

230vac extract fan speed control - help

Hi I'm just in the process of refurbishing the bathroom of a flat I bought. It's all been plastered out already and I realised I've no extract! So, I created a plenum at hi level and mounted a fan under floor and have ducted it out. I want to run the small AC extract fan 24/7 at low speed (kinda tick over speed) and then switch it to hi speed when either the humidity goes up (cos the shower is running) or the light goes on (assumes someone's using the WC!). I can't get to the lighting wiring so I'll need to sense that remotely. I can fit a humidity sensor in the duct work. I've tried everywhere to find something suitable with zero joy. Is anyone here able to point me in the right direction?

Topic by ListysDad   |  last reply

I have to design controller for controlling speed of BLDC motor for E RICKSHAW ?


Question by DIGVIJAYSING   |  last reply

How do you control 2 motors, 4 servos and 2 stepper motors for a RC airplane? Answered

For the upcoming Epilog challenge I was wondering if there is a 4 servo 2 motor controller for a R/C airplane.If there is can you give me the specifications on what to look for? Is there also a way to control 2 stepper motors from the signal from the transmitter, it has to be semi-light, or light enough for a RC airplane. How could a program both the motor/servo control and the stepper controller?

Question by squirt8500   |  last reply

speed control of multiple bldc motor -design

Please help me, anyone please help me to design the speed control of multiple bldc motor./ 

Topic by sachin george    |  last reply

how to choose an electric motor and speed controller?

Hi, I`m going to design turning table (50-60cm diameter) the spinning disc is made from aluminum so its weight won`t exceed 10kg. it will spin by the mean of an electric motor (maybe gears will be used also). I want the spinning speed to be variable where I can control it from 0 up to 300 rpm (gradually or by steps where each step is 50 rpm) by them mean of speed control or whatever. The feeding power will be used is the normal home socket which is 220-240V 50Hz. My questions are: 1- What is better to use and easier to implement? AC or DC motor? 2- What will be the power of my motor? and how many amps are enough to turn it at maximum speed? (let`s say the load on the table won`t exceed 20kg) 3- Whatever has been chosen AC or DC, what is the best and easier way to control the speed? How will i control the speed? Thanks.

Question by iSulley   |  last reply

PM-DC motor and its speed control ???

Hi friends,  our team is going to make a trike(tricycle) which runs coz of pedalling and also with an electric motor. we have decided to used PM-DC motor. can anybody please tell us what are the specifications of the motor to be used. also please tell us about the cheapest and easiest mode for speed control of the same. Other details:   Max power of motor allowed=400W Motor is made to run with a power source of a 12V battery. We would also like to know how to charge the battery with the same motor(run as generator) Thank u... 

Question by arjun169   |  last reply

Overpriced Stuff: Electric Motor Speed Controllers

Commercially, speed controllers for electric motors (electric car size) are very expensive, like on here.That page has a controller capable of 144v at 550a peak (about 90 horsepower peak) for $1250. I just designed a speed controller with parts off of digikey.com for about $200 that could handle 144v at 690a continuous so it could probably get over 180 horsepower peak.All things considered, their's costs over 10 times as much per amount of power.This seems like a BIG markup. I can understand shipping costs, labor costs, etcetera, but something seems a little messed up here.NOTEI am not sure that the design is quite right, and haven't done it myself, so criticism is good.

Topic by yourcat   |  last reply