Questions tagged [actuator]

An actuator is a device for converting energy into motion. They may be pneumatic, hydraulic, electric, or mechanical.

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Repurpose adjustable standing desk linear actuator for a project on my truck [closed]

Disclaimer: fairly limited experience with electrical engineering. I'm currently making a deck for my snowmobile that will sit in my truck bed - a 'Sled deck'. Nice sled decks have telescopic sides so ...
MorleyTheMaker's user avatar
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Control bi-direction of an actuator by two solar panels

I have two solar panels and would like to control a small actuator in both directions. I reckon I need to use relays but hard to make a solid circuit with these two independent power sources. Would it ...
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Joint actuator consideration for quadruple robot

I’m in the process of building a hybrid robot between wheel and leg so that it could traverse different terrain effectively. I’m not planning to implement any complicate galloping or jumping on my ...
Speh's user avatar
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Linear actuator doesn't move or moves very slowly

I am observing issues with linear actuator not moving and/or moving very slowly at highest speed setting. I am using a DC linear actuator with a speed control unit and rocker switch to extend and ...
Rock's user avatar
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How does this motor work?

I have been on a bit of a quest to find some sort of linear motion device to compress a spring with 15kg of force 80mm at 1600mm/s, with continuous duty cycle, ideally under $40. So I was digging for ...
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Linear Motor Design

I previously uploaded a question on trying to make a solenoid attract a magnet 80mm away, however this ended up being an impossible ask due to solenoid's having a max effective attraction distance of ...
Yassin's user avatar
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Turbocharger Electronic Valve Control

I have seen that the H bridge method is used to drive the valves required to use the turbocharger feature in the engines, why do they prefer this? There is no DC motor, they open and close an ...
Eng's user avatar
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Actuator using a BLDC motor simulation

I need to represent an actuator which is using a BLDC motor in Simulink, for my Bachelor's Degree. I don't specialize in electrical engineering, but in mechanical engineering, so I'm at a loss here. ...
David Drăghici's user avatar
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Can an L298N motor driver run a linear actuator?

I am new in Arduino and electronics. I am trying to run the Sumret SRA6000 linear actuator with an L298N motor driver. Will it work? If not work, what motor driver can I use to synchronize both linear ...
Cheng Kai Chew's user avatar
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Validating motor control architecture using Raspberry Pi hardware PWM

I need a validation that what I am doing is correct. Please look at the part of schematic shown below. I am driving two linear actuators through Raspberry Pi 4b. Both enable pins of each motor driver ...
BhavinT's user avatar
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Could actuator (DC motor) damage the relay that controls it?

I have a 12V 22A DC actuator that I turn on/off with an automotive 80A 12V relay. Could turning it on and off cause damage to relay in the long run? I understand a diode is required on relay's control ...
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Speed control actuator in a two-actuator setup, joystick controlled

I have two 12 VDC actuators connected to a 4-position joystick. I need to be able to control the speed of one actuator only; the other will run at full speed. Could you draw and/or explain how I could ...
Richard Sutton's user avatar
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2 answers
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Are heating foils resistors?

In my project I need to use some heating foils to warm a chamber up to a certain temperature. I would like to use polyimide or polyester heating foils. If these heating foils act as resistors, can I ...
stefyanna's user avatar
2 votes
1 answer
110 views

How to toggle a rocker switch with an actuator [closed]

I have a cheap grid tie inverter which is supposed be activated and deactivated with a rocker switch. The switch is not directly disconnecting the AC power, but acting somewhere deeper inside the ...
CGP's user avatar
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How can I control my two AC motors from a single 3-conductor relay?

I have a pool system that can control two valve actuators via relays, one to switch the water return from either the pool or spa, and another to feed filtered water to either the pool or spa. Each ...
bboe's user avatar
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Why is this an example of actuator?

Hi, I know that an actuator is: a component of a machine that is responsible for moving or controlling a mechanism But how is a simple LED circuit as I’ve attached an actuator example please as there ...
Johnny 's user avatar
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Actuator linking alternatives

I am working on a project that requires raising and lowering a static flexible rubber to a max height of 300mm from a zero, flat point. My issue, other than the fact my expertise lies within other ...
John Psota-Jenkins 's user avatar
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Generating 50-300 Hz oscillations with piezoelectric stacks

I am currently working on a project that prompts me to find/design sources of mechanical oscillations, similar to the ones generated by a motor with an eccentric load used in mobile phones and similar ...
APasagic's user avatar
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Looking for a linear actuator that can carry a transverse load. Does such a product exist?

I am looking for a product that works like a linear actuator where you can control how far it extends but it can also hold a transverse load at the furthest point of extension. What I am looking for ...
belza00's user avatar
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1 answer
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What is the PE in 4P+PE connector mean?

I'm wiring a valve actuator to a connector for quick-disconnect purposes. The actuator has five wires so I thought of getting a connector that says 4p+PE, however I was told that 5p was needed. I'm ...
Chris's user avatar
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1 answer
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Low side driver and flyback diode

I wanted to control electric door lock (12V, 1.5A peak, unlocking time < 200ms) with Self-Protected Low Side Driver like NCV8412 (https://hr.mouser.com/datasheet/2/308/1/NCV8412_D-2317556.pdf). One ...
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Protecting small DC motor (power door lock actuator) from burning out due to stall

This question of small DC motor burnout due to heat/stall has been asked in a few different ways/scenarios already, so I think I have a basic understanding of what the issue is -- I'm interested in ...
calikw's user avatar
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1 answer
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Need some help with design for reduced friction acceleration of a ferromagnetic mass through a barrel

I would like to levitate (by that I mean just enough to not make contact with the surface of the barrel) and accelerate a ferromagnetic mass along a barrel of a certain length. I have a few questions ...
ICRed's user avatar
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Relay to drive actuators

wanting to use 240v AC motor controller to drive a DIY TV lift that uses DC actuators. The AC controller has Neutral, L1 and L2 outputs. Will it work if I… Wire 240v AC L1 and L2 outputs to each side ...
David Pritchard's user avatar
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2 answers
215 views

Small actuators/motors to generate low frequency vibrations

I am a beginner in vibration technology, and I am interested in making a wearable device that delivers low-frequency and low-amplitude vibrations to the user's wrist. All of the motors I have found ...
MurkyNewspaper9's user avatar
2 votes
1 answer
258 views

How does this pentode power amplifier (old technology, 1960s) work?

This is a diagram of a pentode power amplifier: This amplifier is used to control an electro-pneumatic actuator. Let me describe it a little bit: the input voltage (the control signal) is V3 (-30V &...
Dat's user avatar
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2 answers
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Quasi Direct Drive Actuator - Slot & Pole Combinations for High Torque Motor

I am building my own Quasi Direct Drive actuator and looking for information/ design guidelines for building a High Torque Motor similar to the MIT Mini Cheetah below. Specifically I cannot seem to ...
SoloLeveling's user avatar
1 vote
1 answer
209 views

How to choose the right MOSFET?

I am looking to use a MOSFET to switch a linear actuator on and off. There's nothing else on the circuit, just the switch and the actuator (and a Raspberry Pi to control the switch.) The actuator ...
Lil Mami Chula's user avatar
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2 answers
141 views

How does negative feedback control system begin to work fast

Let us consider an open loop system, which has some value of bandwidth. Now, when the loop is closed via negative feedback, the gain of the system reduces and the bandwidth of the system increases. ...
SaJ's user avatar
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Linear actuator is not working with BTS7960

I am trying to run a linear actuator with a BTS7960 motor driver and an Arduino UNO. The code seems fine, wiring seems fine but after uploading the code, the linear actuator does not start. I am using ...
Muskaan's user avatar
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1 answer
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Code misbehaviour when linear actuator to the circuit

I have a circuit meant to operate an actuator in function of the temperature. The code has been tested and, as long as the actuator is not connected, it does what it is meant to do (tried simulating ...
Fracchie's user avatar
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1 answer
111 views

Does "rated torque" (kg.cm) directly apply to "lead screws"? [closed]

I am making a project that requires driving nuts through threaded rods. I keep seeing different numbers for kg.cm and N.m, the explanation kg.cm found on this Stack emphasized only on radial distance, ...
Rami Raghfan's user avatar
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0 answers
258 views

0-10V control signal for valve actuator from -10/10V DAC

I'm trying to control a valve actuator (24VAC power) that uses a 0-10V voltage input signal which only uses one wire, with a USB multifunction board which has a +-10V DAC control output which uses two ...
Andrew Caspary's user avatar
1 vote
0 answers
292 views

How do I find the best DC motor for my rack and pinion system?

I need enough electric power to produce about 0.289 Nm with a rack and pinion system and compress 24 mm of a 110 mm x 21.6 mm, 0.99 N/mm steel spring. What I have so far is that for a 10mm pitch ...
curioso's user avatar
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0 answers
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How to control a piezoelectric actuator programmatically?

How can one control a piezoelectric actuator programmatically (e.g. with a 3.3. Volt digital signal from a Raspberry Pi or any other method you recommend)? The goal is to be able to output an ...
Miladiouss's user avatar
0 votes
1 answer
102 views

Square wave from high voltage power supply (5kV)

I working on a project involving dielectric elastomer actuators and need to generate a square wave from a 5kV power supply (SRS PS350). The operating frequency will be 0-50Hz. What's one circuit I ...
mrino's user avatar
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-2 votes
1 answer
78 views

DC motor remote control with one push [closed]

I am planning to use 2 actuators as a gate opener. The linear actuators are hooked to a DC motor controller, with remote, so I can open/close the gate by either press and hold one of the two buttons ...
A h's user avatar
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0 votes
1 answer
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Map arm movement (as plant) to lidar-measured distance (as setpoint) using PID

I am trying to control the arm of my setup such that its tip is at a particular distance from the surface. That's when its supposed to stop. The actuator has no feedback, so I use a 1D LiDAR to ...
Pe Dro's user avatar
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0 answers
146 views

Controlled solenoid stroke length

Let me create a scenario to better illustrate the problem I have 1500 pens that I want to individually actuate upwards with 3 different distances, ex: 10mm/15mm/20mm I thought I could use a solenoid ...
Mauro Delazeri's user avatar
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0 answers
46 views

Insight on backup safety feature for linear actuator using NEMA stepper motor in commercial product?

I am of intermediate skill level with electronics and hardware. I am working on a linear actuator concept prototype with a partner that we plan to iteratively develop and eventually take to market for ...
Pholotic's user avatar
0 votes
1 answer
249 views

2 Relay H bridge design

I am wanting to design an H bridge to control a linear actuator. 12vdc motor, max current 3.2A under load, and has built-in travel limit switches (ie motor stops at full extension and retraction). ...
Dropbear 's user avatar
0 votes
0 answers
86 views

Linear motion (quiet, variable speed)

I want to use a raspberry pi or arduino to create linear motion, back and fourth, my current goal is to make the pushing part for a baby rocker, but also a swing-rocker as a next project I have looked ...
Cowborg's user avatar
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3 answers
476 views

How do i know what resistor value, that's attached to a BLDC motor, i should use in order to get a torque of 100 lb-ft put on my actuator?

Motor P/N is M-3441Y-LN-02D. Back EMF [Ke] is 38.95 (Vpeak/Krpm). Continuous torque 2.495 lb-ft. User manual. I want to run the actuator coupled with the BLDC motor 60:1 gear ratio in reverse. So the ...
Stan's user avatar
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1 vote
2 answers
108 views

Aren't actuators mechanical devices, and so aren't they part of the mechanical system?

I am currently studying Mechatronics: Electronic Control Systems in Mechanical and Electrical Engineering, seventh edition, by William Bolton. Chapter 1 Introducing Mechatronics has the following ...
The Pointer's user avatar
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2 votes
2 answers
1k views

ADC Measure from source with higher voltage and different ground

I would like to measure the voltage of a battery that varies from 4,5V to 3V. To do so I'm planning to connect this source to a STM32F4 DISCO board and one of its ADCs, which will be set to a VREF+ of ...
LazyTurtle's user avatar
1 vote
2 answers
3k views

Please Help with Syncing 2 Linear Actuators

I am a complete noob in regards to electrical wiring and scoured countless hours on the internet for help. I bought 2 DC12V 16inch Stroke Linear Actuators and connected it with a 20 AMP 12V - DC Motor ...
Daniel's user avatar
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2 votes
1 answer
10k views

Do I need to put a resistor in series with relay coil?

I need to design a circuit to drive a relay and I have some doubts. Do I need a resistor in series with relay coil, I mean, between transistor and relay coil ? Why I always find relays with 12V, ...
Daniel's user avatar
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1 vote
1 answer
69 views

Electromagnetic actuator – extension of field beyond coils?

In an electromagnet with an iron or similar core, how far down that core, beyond the coil, will the rod be magnetic when the coil is energized? I'm wondering if I can create an actuator for an object ...
Dan Donaldson's user avatar
1 vote
2 answers
297 views

How to calculate the number of cycles my linear actuators can run

I've recently bought a set of linear actuators for a personal project of mine and I was wondering how many times can this linear actuator run before my battery runs out. (My battery is rated 12V, ...
Axois's user avatar
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-1 votes
1 answer
412 views

DC Motor - need replacement [closed]

Ok I’m am hoping someone can help me. THREE of my 4 door locks stopped working. Dealer quotes me $500 (parts, labor, tax) or $200 (parts, tax). Quote to myself to fix FC-280ST-16200 KD603713 ...
KrazyKat's user avatar