An electrical actuator converting electrical energy into rotational motion.
1
vote
1answer
63 views
Using capacitor to maintain current flow past opening of switch
This circuit turns on the motor when something blocks the beam from the LED to the phototransistor. I want the motor to remain on for 5 seconds after the beam stops being blocked (i.e. from when the ...
-3
votes
0answers
40 views
What USB Devices exist to control motors and connect sensors? [closed]
I am planning to use a Raspberry Pi for controlling an automated toy car. I would like to know what USB devices exist that have several slots for connecting motors and sensors. My plan is to connect ...
5
votes
5answers
294 views
Microcontrollers - Beginner questions
How do you determine how many sensors a microcontroller can use?
My understanding is you can't use C# directly on any microcontroller but you can use C# and communicate over the USB and look for a ...
0
votes
1answer
34 views
small fixable position motor to drive universal stage, possible?
I'm trying to make a universal stage, inside a cooling chamber, controlled through Arduino. So what I'm after are small as possible motors (2-3 cm with shaft) to fix on the stage's arms which will ...
-5
votes
0answers
56 views
How to control a stepper motor 's direction, speed and rotate it in steps of aprox 2 degrees [closed]
a unipolar stepper motor is to be used having 4 coils
no use of microcontroller or LS297(stepper motor driver IC)
H bridge IC ,counter, e.t.c to be used
2
votes
0answers
53 views
Matching mosfets - linear servo amplifier (AB)
I'm replacing a bunch of burnt mosfets in a linear amplifier for a brushless motor.
3 phases
Each phase: 3 pairs of totem IRFP240 / IRFP9240 in parallell. (no R in series)
My main concern is ...
3
votes
0answers
58 views
Ideas for actuation/actuators besides motors
I have a 1 cm piece of standard rubber tubing with a 1 mm hole at exactly one point along the surface of the tube.
Probably doesn't warrant a picture but just for clarity:
I would like to ...
1
vote
4answers
154 views
Can I use a 220v engine to build up a RC car?
sorry for the noob question, but I'd like to build myself a small RC car. I've found this motor in a blender, which runs at 220v.
Can I power it with a lower voltage? What should I use?
Thanks a ...
1
vote
3answers
111 views
AC motor Low RPM problem
I'm working on a controller for ac induction motor and it's spec is given below. I could control the speed without any trouble at higher speeds like 2000 rpm and above. I'm using TRIAC phase angle ...
1
vote
1answer
48 views
Detecting Motor Overload
I want to make a circuit to indicate an LED if a motor is drawing too much current. (when the motor is stopped for example mud got stuck around the gears) I am using 9-12 volts to power my motor, and ...
1
vote
1answer
63 views
Electrically Controlling A motor direction
I want to control a motor's direction electrically. When the input is a zero, I want it to go one way, and a 1, the other way. The only way I can think of this is a solenoid with a spring attached to ...
0
votes
1answer
25 views
What are fast and slow decay timings in the Allegro A3201 low voltage meter?
In the A3901 Low Voltage Meter Driver datasheet Figure 8 on pg. 10 shown below indicates what the output "IOUT 2/3-4" will look like given input "IN1/3 or IN2/4".
But Figure 8 does not mention ...
-1
votes
0answers
28 views
resolver sensor [closed]
I need a resolver sensor for my project, to sense the angle of the motor shaft. Can anyone suggest from where can i get it? And it should be without a decoder chip. Input=v sin(wt) and outputs= v ...
1
vote
1answer
57 views
Driving a brushless DC motor (with a UC3625?)
I am trying to drive a brushless DC motor with hall effect sensors using a microcontroller and a TI UC3625 controller.
Thing is, I haven't had much luck. Its a beast of a chip and I've tried wiring ...
1
vote
1answer
52 views
Which electro motor to use for steering a kite? (guestimation marathon)
I'm doing a pet project in which I want to fly a kite from my computer. For this to happen my plan is to build a little box hanging under the kite which includes a raspberry pi (connected to my laptop ...
