An electromagnet combined with an actuator to convert electrical energy into linear physical motion.

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How to operate a solenoid [closed]

I purchased some of these solenoids and cannot get them to operate with a 12v battery. I am simply connecting the ground to one open wire and the positive to the other and the solenoid does not ...
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1answer
39 views

Solenoid valves in series or parallel?

I already have the main solution and dosing solution tanks hooked up to each other, with solenoid valve S1 controlled by the liquid level switch through the DC power supply and DC/AC SSR (see image), ...
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1answer
62 views

What is the difference between push and pull solenoid? [duplicate]

I want a solenoid that stays retracted and propels forward when current is passed through it. Is there a solenoid that does this? What is the difference between push and pull solenoid?
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2answers
67 views

Sense if USB is alive or dead ++

I'm using a 16 channel digital output module (NI 9375) from National Instruments which routes 24v (from a PSU) to several solenoid controlled pneumatic valves. So a valve is open when 24V is sent to ...
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0answers
64 views

What is the best way to share 12V, 22V, and 5V power?

Please bear with me - I'm a software developer that hasn't worked with electronics since college. I'm trying to replace the internal electronics on this pinball machine: ...
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1answer
32 views

measure instantaneous position of a solenoid piston?

I'm trying to improve speed & force of a solenoid and its power electronics strategy. So far I can measure many variables such as : tension current waveform shape time to reach final excursion ...
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1answer
67 views

Solenoid circuit current issue

I have been working on a circuit go make a solenoid switch polarity with arduino. I originally used transistors (NPN) rated for 1A and 625mW in between the ends of the solenoid and ground. These all ...
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1answer
43 views

liquid level switch and solenoid valve circuit

I am trying to make sure that I have this circuit hooked up right before I actually put it to use. I’m planning to use the liquid level switch (McMaster PN:50195K93) to open the solenoid valve ...
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0answers
27 views

Generating current from a high voltage power line [duplicate]

I learnt that power lines carry high-voltage electric current with electric fields and a magnetic fields around them (That i just think go to waste). So i was asking, if i surrounded a single power ...
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0answers
72 views

Can I wire 110v solenoid project straight to mains power?

I'm making a arduino project where the 5v current switches on/off a relay to power a solenoid. I've just bought a 110v 50/60Hz tractive solenoid and can't figure out the right way to power it. I'm in ...
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1answer
25 views

Autoelectrics: Testing components off 12v battery

I'm quite good with mechanics and am just starting to learn more about electrics specifically applicable to automotive. One thing I am still yet to get the grasp of is the way electricity behaves. It ...
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1answer
63 views

Arduino Controlled adjustable current 0-1A,18V

Hello Masters of Electronics, I'm civil ingeneer, electronics are big unknown to me, but it wakes up my interest. I would like to control proportional pressure with electronic proportional pressure ...
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2answers
106 views

Driving a solenoid with low voltage source

I have a 5V solenoid here, but my power source (battery) is only 3.3V . It's a pretty small solenoid, so it doesn't need huge amounts of power, but directly connecting it to the battery terminals wont ...
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0answers
69 views

How can I add redundancy to the flyback diode protection across an inductive load?

Dear StackExchange users, I want to add redundancy to a flyback diode system that is protecting an N channel MOSFET from flyback of an inductive load but I don't know how to accomplish this! I am ...
1
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1answer
77 views

Procedure for finding the right MOSFET, diode and resistor to make a solenoid valve open/close? [closed]

I need a right MOSFET to make a 8 valves open/close about 15 times per second! It needs to switch very fast. Anything that can slows the speed of the valves is not desirable. From what I see the ...
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4answers
135 views

12V solenoid drawing more current than it needs

I'm fairly new to practical electronics so I apologize if any of this is obvious. I am currently trying to use a microcontroller to control the energizing of several 12V solenoid valves using a PC ...
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2answers
60 views

Calculating peak current of solenoids

I'm a electronics newbie, and I'm making a project with 8 24v solenoids playing percussion quickly. I want to power these all with the same power source, so I'm being careful. This is similar to ...
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2answers
121 views

Electrolytic Capacitor in Solenoid Circuit

I was looking at a few solenoid circuits. I came across this one that had an electrolytic capacitor across it (whereas most just seemed to skip it). Does this capacitor serve any other purpose ...
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0answers
40 views

Driving solenoid with Microcontroller with variable strength

I am working on an interface to trigger physical drums with solenoids. Therefore I need to not only drive the Solenoids Hi/Low, but also change the force - ideally using PWM for each individual ...
0
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1answer
51 views

Sprinkler Control Power supply requirements questions

Not sure if this is the right forum or not... I am looking to build a custom sprinkler controller using a Raspberry Pi and a relay board. The question is around the power supply. The valve ...
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0answers
44 views

Solenoid Core Coil

Friends, I am working with Air core Solenoid coils. While I am calculating the lifting magnetic force of the actuator the answer I get is in Henries or in Tesla. Actually I am tying a 50gram weight in ...
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2answers
166 views

Many small and cheap linear actuators [closed]

Me and my friends are trying to build a linear actuator matrix. It's supposed to be a grid of pins that go up and down at reasonably fast speed (more than 1cm/s, the faster the better). Problem is, ...
0
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1answer
83 views

What kind of relay do I need for for 12V source with a 5V control voltage

Trying to figure out which relay I need for a project I'm working on. The source is a 12V battery, and I'm looking to turn on a 12v solenoid using a relay. I want the control voltage on the rely to be ...
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0answers
28 views

Circuit modification of OSBee shield for Arduino

I purchased OSBee shield board to control 24V Solenoid Valve. It utilized 5V external power to charge a capacitor and then release charge to open/close solenoid valve. However, I found sometimes it ...
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2answers
112 views

Is this the behavior of a broken mosfet?

I designed this circuit to switch on/off 8 solenoid valves for a programmable dancing fountain that I am building. The GPIO is coming from a Raspberry Pi. VCC is coming from a 12V deep cycle car ...
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0answers
58 views

Solenoid Circuit: MOSFET switch help

I am trying to operate a 5V solenoid using a IRLZ44N power MOSFET. My problem is I cannot get the MOSFET switch to work. My circuit: 5V into solenoid and diode (1n4004) in parallel into the drain of ...
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2answers
162 views

EMC considerations for driving a solenoid via PWM over a long cable

We're designing a circuit which essentially has the topology shown below. We're driving an inductive load (24V, 3.8Ohm solenoid - max avg current = 2A, but peak current can be 6.3A) using PWM. ...
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1answer
98 views

Might I be better off using a TIP122 Darlington than a FQP30N06L MOSFET?

This is a followup to: Simple ESD protection for MOSFETS I built the circuit described in the above post using FQP30N06L MOSFETs and after several hours of testing two of the MOSFETS died at nearly ...
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1answer
98 views

Need to choose between 48 solenoids, trying to design a proper circuit to do so

I am in the process of designing a project that will allow a Raspberry Pi to "print" to an old (60s) electric typewriter. I have decided to have a push-solenoid for each key (24V), for 48 total keys. ...
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0answers
76 views

Reversing motion on a bi-directional solenoid

I have a Ledex 4EM rotary solenoid (26awg winding) that, by using permanent magnets in its construction, changes direction depending on input polarity. I want to actuate this solenoid in one direction ...
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2answers
62 views

Inductor Reactance

I have a few questions about the reactance of inductors at certain frequencies. I have been working on a project that involves flipping the field in a solenoid with an air core at ~10-20 kHz with a ...
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2answers
162 views

Solenoid Driver Circuit

I want to drive a solenoid (12V load and 20A rating) using a MOSFET and an Arduino. What kind of switching circuit should I use?
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1answer
96 views

Tubular Solenoids and Arduino

I am interested in using this Tubular Solenoid at 3 DC voltage to operate in Continuous (100%) Duty Cycle. According to the specifications the solenoid can operate at a: Continuous (100%) Duty ...
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1answer
162 views

Can someone recommend a relatively small device that can move a 2 1/2 inch sphere weighing 6 oz 20 feet?

I am trying to find a method (solenoid?) by which I can strike and move a 2 1/2 inch ball that weighs 6oz with enough force to propel it up to 20 feet. Can a solenoid do this? I would not want to ...
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2answers
216 views

Solenoid strong enough to open lock latch [closed]

I am new to electronics and am trying to build a fun project that needs a solenoid strong enough to push/pull the latch open of a masterlock (thats open or combo has already been entered) Im not sure ...
1
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3answers
145 views

Help with simple Arduino/Transistor/Solenoid circuit

I'm trying to use an Arduino+transistor to control a shutter (which I believe is a solenoid) at work. The shutter is normally connected to a power supply by two small wires (positive and negative) and ...
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4answers
225 views

Basic question - multiple solenoids in parallel

Please excuse my ignorance - I am first and foremost a software person, and I only fool around occasionally with hardware... I want to get 5-6 solenoid valves working in parallel. The solenoids are ...
1
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2answers
295 views

arduino mosfet solenoid

I'm trying to drive a solenoid with an arduino pro. I've assembled the typical MOSFET approach with a protection rectifier: The circuit works, and the solenoid is triggered, but very weakly. In ...
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0answers
68 views

EMI/EMC filters for different frequency sub-circuits

I am designing a PWM based solenoid controller. The PWM controller works at 23kHz with an average circuit consumption of 23-45mA. The PWM controller is powered by a non-isolated SMPS with 12V output ...
0
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1answer
87 views

mechanical relay output voltage doesn't change

As a followup to my previous question, where a 2222 npn transistor wasn't beefy enough to handle the load I was putting on it to activate a solenoid valve, I decided to try a mechanical relay board ...
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2answers
160 views

transistor toggles an LED, but not a solenoid valve

I'm working on a hobby project where I'm trying to drive a solenoid valve with an arduino (for some automated plant watering). The solenoid valve takes 12v, so I've rigged up some smaller batteries ...
0
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1answer
300 views

Actuating a solenoid through a capacitor

I would like to actuate a latching solenoid through the following circuit: simulate this circuit – Schematic created using CircuitLab A capacitor is charged over a resistor. When this ...
0
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2answers
541 views

Latching solenoid control

I am working on a personal project that will involve driving a latching 9V/DC solenoid from an arduino. The circuit I've come up with is dependent on two things, that I haven't quite figured out yet: ...
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1answer
247 views

Simple ESD protection for MOSFETS

I'm designing a MOSFET (FQP30N06L) circuit to drive a (50V, 3.4ohm) pinball solenoid controlled by a PWM pin on an Arduino DUE: simulate this circuit – Schematic created using CircuitLab ...
0
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1answer
177 views

solenoid hammer trigger control

I am new here and a newbie regarding electronics, I shoot PCP air rifles and have a small project regarding the air rifle. The shooting mechanism is consisted of a trigger releasing a spring loaded ...
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2answers
184 views

Electrical behavior of holding magnets when you pull them apart

I'm going to buy a holding electromagnet and a strike plate to hold some things, and I want to design my circuit (arduino-controlled) not to fry like bacon. I'm aware that since a holding magnet is ...
0
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1answer
67 views

Determine the speed of a solenoid

I've found this solenoid online. In my current project I try to generate fake recoil for a lasertag marker. Now my question is: Can I determine the time the solenoid needs for completing one cycle? ...
0
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1answer
69 views

Magnetic flux outside a solenoid perpendicular to the direction of axis of solenoid

I know that using straight forward Biot-Svart law it is possible to calculate field inside a solenoid or at a point on an axis away from the circular coil. Now is it possible to calculate the Flux ...
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1answer
54 views

Alternate to a proportional linear solenoid

I am trying to build a circuit using gears, motors, and relays only which mimics the motion of a proportional linear solenoid i.e. Hold a spring compressed at a certain distance depending on the ...
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2answers
110 views

Using a solenoid to open a door

I'm trying to rig up my door to be unlockable using RFID and an Arduino. The problem is the actual mechanics of unlocking the door. There's a few limitations: I can't actually unlock the door. It's ...