An electrical actuator converting electrical energy into rotational motion.

learn more… | top users | synonyms

0
votes
1answer
20 views

have a motor actuator md120-01-l2-416-091 Input DC18-35V 5A MAX want to increase speed, what do I need to use to accomplish this

Motor actuator DC18-35v +-5A Max, what is best way to increase speed, is used in a chair
1
vote
0answers
25 views

Circuit for controlling 3 DC motors

I have a simple 3 motor robot arm. Without much experience or knowledge, I put together a circuit for controlling it. Circuit is below: Now the circuit actually works and I can program the Arduino ...
0
votes
0answers
22 views

1 phase induction motor used for pumping of water to syntax

If 1 phase induction motor which is used for pumping of water, is taken the air, means.. I wil run this without water, but after water is there, but it won't work at all.. Means it takes air, how to ...
0
votes
3answers
53 views

How to change rotation direction of 3-phase electrical machines?

I was taught that if you want to change the direction of a three phase rotating machine that is rotating in forward direction, you interchange the phases. Since the phases has the same features ...
0
votes
1answer
57 views

Basic microcontroller to dc motor setup [closed]

I am looking to program a microcontroller to power a dc motor at a given speed. The speed will be determined by a gyro reading of another spinning part. It will need to spin at about 4 Hz (240 rpm) ...
0
votes
3answers
37 views

Regulating D.C. motor - Feedback

I purchase the following hobbyist motor: http://www.digikey.ca/product-detail/en/PKN12EB105C1/P14353-ND/2417077 How can I get a feedback from this motor? The design of D.C. motor that I found on ...
1
vote
3answers
68 views

What's the easy way to measure a DC hobby motor's inductance?

When using simulations(SPICE), I need to model a DC motor or an electromagnet, relay ect. as an RL in series. I can measure the R resistance by an ohmmeter. But I couldn't find an easy way to find ...
-1
votes
0answers
7 views

Arduino uno not working? [migrated]

Recently I assembled my shapeoko machine, we used grbl shield with an uno for the same. For 1-2weeks everything worked perfectly then once when I tried to work the machine, the serial communication ...
1
vote
0answers
47 views

Monster moto shield + Arduino +Pololu 12V, 29:1 Gear Motor Encoder hardware problem

Overflow enthusiasts! I am trying to build a balancing robot with two wheels, using the polulu gear motor as mentioned above. In order to have a strong motor driver,the monster moto shield is used in ...
0
votes
2answers
28 views

Motor acting as a generator with backfeed

12v DC automotive question. I replaced the engine-driven clutch fan with an electric radiator fan, controlled by thermostat and relay. I included an LED in the vehicle to show when the fan is ON. ...
0
votes
0answers
43 views

Circuit board dead if motor disconnected

I have a question about this configuration. I am using a motor with the garage door opener circuit board. I want to remove the motor yet still have the circuit board functioning. If I unplug the ...
1
vote
1answer
37 views

voltage mode vs current mode motor

I wanted to ask question regarding voltage vs current mode for a feedback control motor . Will operating in current mode have any effect on our torque values provided that we are keeping the speed ...
-5
votes
1answer
40 views

AC Motor slowing down then returning normal speed [closed]

We have a 3 phase motor controlled by a variable-speed drive. The problem is the motor will suddenly slow down then return to normal speed. What could be the problem? Also note that the slowing down ...
1
vote
1answer
43 views

TVS unidirectional vs bidirectional in Hbridge

I have used this circuit (I found online last year) to drive big dc motors without much thinking but with great success. http://obrazki.elektroda.pl/4961105700_1437649469.jpg : - But yesterday I ...
0
votes
1answer
20 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 ...
1
vote
0answers
40 views

Draw relation of rotation speed and output power of PMAC generator with brake resistor

I would like to draw a graph showing the relationship between rotation speed and power of an ideal Sinus PMAC generator with a brake resistor R(load) to be defined controlled via a 4Q Controller ...
2
votes
1answer
29 views

Relay control of AC motors, handling turn-off kickback

I've been researching how to control a smallish AC-motor using a relay, and more specifically, how to turn an AC motor off using a relay. This is a subject that has been up many times at this site, ...
1
vote
1answer
37 views

Bidirectional control of two different actuators

I have two actuators, part of two different mechanisms: A cheap brushed DC motor with gearbox coupled to 2 limit switches A Firgelli L16 linear actuator with protective limit switches (not ...
0
votes
0answers
74 views

Digital Potentiometer and Motor Speed Controller [migrated]

I'm trying to get a Chinese 20A DC Motor Speed Controller working with a MCP42100 Digital Potentiometer. The analogue potentiometer supplied was 100kOhm. I have programmed my arduino with the ...
0
votes
1answer
45 views

Customized Digital Clock(two power sources)

I am quite newbie in electronics. Recently I bought a Digital Alarm clock and tried to customize it by adding DC motor wheels . Idea is to set an alarm , when its alarm time apart from sound it should ...
-6
votes
1answer
53 views

running motors from ownely coupled generator [closed]

i want to do the experiment on motor generator my design is iamgoing to connect a 2 dc motors and 2 dc generators in that 1st dc motor and 1st dc generator is coupled 1st dc motor and 2nd dc motor are ...
0
votes
1answer
40 views

DC motor selection criteria for electric vehicle application?

I read that for DC electric motors you should generally use the motor with the highest "motor size constant" you can (motor size constant Km = Kt^2 / R, where Kt is motor torque constant i.e. N*m/A, ...
1
vote
1answer
51 views

Help with coreless micromotor. Can I add a switch?

I have ordered some coreless micromotors, as shown here. These are for a science club for the kids to tinker around with. We are simply using them to make lightweight cardboard junk robots jiggle ...
0
votes
1answer
86 views

Using Logic Gates to Power a Motor

I want to design a circuit that powers a motor on under certain criteria, and off under other criteria. I built my circuit using switches and a 74ls04 (Inverter) and a 74ls08 (AND) gates. The ...
0
votes
0answers
36 views

Regenerative braking torque ca[ability

I have been trying to calculate the maximum torque that be applied to my driveline through regenerative braking on my DC motor, using the equations from this paper: ...
0
votes
0answers
40 views

Can this motor shield be used with a raspberry pi and not an arduino? [migrated]

Is it possible to wire this motor shield designed for the Arduino up and get it to work for a Raspberry Pi 2? http://linksprite.com/wiki/index.php5?title=Motor_Shield
-4
votes
1answer
30 views

how does a flux reversal motor operate??

flux reversal motor has 2 sets of magnet in a pole that can conduct in the cycle first magnet,both magnets, second magnet.how is the excitation made possible.Note that both the magnets are in the same ...
-3
votes
0answers
31 views

Controlling servo 360 degree(clockwise and anti clockwise) using arduino with “if statement” [migrated]

I am facing a problem to control my 360 degree servo motor using arduino by "if statement" and the input will be potentiometer. For and example, "if the analogRead<200" i want the servo motor to ...
-3
votes
1answer
66 views

Is this diagram correct? [closed]

I have created the below mentioned circuit diagram: I just wanted to know that have I drawn a good/correct diagram or should I make any changes to this diagram? I have not added the resistors in ...
2
votes
2answers
76 views

Which of the following motors best suit as a wind generator? [closed]

I'm watching some brushless outrunners with low kv as a generator for a simple wind turbine that I'm going to build soon. It might not be a scale or fully useful turbine, because I want to build it ...
0
votes
2answers
102 views

Strategy for a learning lawnmower robot, and choices of motors

I am pondering on building a practical learning lawnmower robot (could be Arduino based) and I am wondering if this will work. The robot will be both autonomous and RC (radio controlled). Given some ...
2
votes
1answer
66 views

Connecting cables when end point rotates 360

I need to be able to rotate raspi camera 360' by motor and up/down by servo. The problem is that when I rotate it 360', all camera cables will tangle up. What is the method to make it right? I need ...
3
votes
2answers
83 views

What's a good set of PWM values to make sine waves for a 3 phase motor?

I'm building a synchronous rotating spark gap for a tesla coil. I have a working mcu (Kinetis K64F) driving a 230volt inverter board and it spins a 3 phase synchronous motor. The motor is a ...
0
votes
1answer
20 views

How to put a delay timer on a micro motor small Area

I am trying to put a micro motor basically as small as I can inside of a 1"or so wide tube like a long fishing plug, I am going to put a small prop or propeller on one end. What I need is to be able ...
0
votes
2answers
84 views

Control of a coreless DC motor using a PWM and a mosfet

I'm using 4 Si2302 logic level mosfets to drive 4 coreless dc motors. The speed of the motors is control led by the PWM signal from an Arduino Pro Mini. The power supply for the boards is a 3.7V (4.2V ...
0
votes
0answers
47 views

Rotating plate motor with position feedback

I am currently building a 3D scanner and I want the camera/laser to be fixed and the subject to move on a rotating plate. This is where I am now : the rotating plate design. Unlike most general ...
1
vote
1answer
74 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 ...
0
votes
2answers
55 views

Rotating a motor according to calculated output [closed]

I have 13 photodiodes. Positive connection from battery is connected to the positive end of each photodiode. The position of photodiodes is as shown below: ...
1
vote
2answers
154 views

Difference between capacitor start and capacitor run Induction motors?

All though in both types of Induction Motors, capacitor does the job of phase shifting to produce the rotating magnetic field, their working principle is the same. Then whats the point in ...
0
votes
0answers
40 views

How to control direction AC motor with 555(clockwise-off 5sec-anticlockwise)

How do I control an AC motor direction with a 555 timer monostable delay configuration and a few relays.The nature I want it to be is anticlockwise all the way(with a press of a button) then press ...
0
votes
0answers
10 views

Can I use Bipolar stepper motor driver to drive Unipolar motor in Unipolar configuration? [duplicate]

Can I use Bipolar stepper motor driver to drive Unipolar motor in Unipolar configuration ?
0
votes
1answer
40 views

torque of locked gear motor vs gearless motor

Do gears increase the torque of locked/stalled motor ?. I understand that in case of rotation of shaft the gears will increase the torque because of transmission to slow rpm. But what makes difference ...
0
votes
1answer
66 views

Multiple Motors and one H bridge

I am trying to make one H bridge for four identical motors. I do not want to make more than one H bridge by any means. I got a way to do that but I need your recommendation. I am going to make all the ...
2
votes
2answers
89 views

Is stalling a DC Motor with rated current safe for the motor?

I know that stalling DC motor can cause overheat because of excessive current. If i will limit the current to the rated current of motor, is there still issue to damage the motor ? to be more ...
1
vote
3answers
94 views

Is it possible to change direction of DC motor using a 3-state rocker switch?

I have a 3-state switch, It has 3 pins. It can have 3 state as you can see in the picture below. when it's off (i.e on O) the middle pin is not connected to anything. When it's on I, the middle pin is ...
1
vote
4answers
103 views

Inverter using Alternator

Is it possible to generate AC power by powering an alternator using a DC motor? If you think about it is much easier and better sine wave than a circuit? Why isn't it used then? What are the ...
0
votes
0answers
43 views

How to determine motor's pinout

So I've savaged an old Maxon DC motor. I've searched thoroughly for some documantion but found none. So I have 6 pins which I guess should be: V+ V- Vcc GND A B Is there a way to determine which is ...
1
vote
1answer
53 views

Question regarding a resistor in optocoupler/TRIAC circuit

I'm building a ac motor starter with a optocoupler (FOD4218) and a TRIAC (BTA16), one for each phase in a three phase 400V system. I have a question regarding the circuits that can be found all over ...
1
vote
1answer
40 views

Turntable Circuit

I have a 33 rpm turntable and I would like to put a switch in it to play 45 rpm records. I don't know where to start. I would appreciate some help with which electronic components I'll have to buy.
1
vote
1answer
72 views

What kind of motor is this?

I have 2 blower motors. I know where they came from and what the models are but I cannot find any real info on them, and I don't know motors enough to know what I have or how to use them. I dabble in ...