All Questions
Tagged with solenoid solenoid-valve
50
questions
2
votes
2
answers
182
views
H-bridge with two logic-level GPIOs drawing high current
I am working on controlling a bi-stable latching solenoid with an H-bridge.
The microcontroller that I am using for my project doesn't have enough GPIOs for me to use four pins for the H-bridge, so I ...
- 113
0
votes
1
answer
199
views
Diode in parallel with AC solenoid valve
I have a circuit I'm trying to design to fire both 120VAC and 24VDC solenoid valves. We have relays that work on 12vdc for the coil, and can switch AC or DC. the valves are normally around 30W. I ...
- 137
0
votes
1
answer
72
views
What kind of solenoid is this?
My electrical water timer broke, and interested to see its inside I opened up and found this (image) solenoid. I'm not sure what type it is.
The whole thing runs on 2xAA (2x1.5V) batteries, but it ...
- 3
3
votes
1
answer
585
views
How can the magnetic field produced by the shading ring of a solenoid valve be 90° out of phase compared to the coil magnetic field?
I am trying to understand how the shading ring in solenoid valves is able to produce a 90° out phase magnetic field compared to the coil's magnetic field. The logic seems different from a shaded pole ...
- 31
0
votes
1
answer
186
views
Controlling a solenoid valve with a relay and a 18650 battery
I have a 12 V 18 W (1.5 A) solenoid valve that I want to control valve with an RF relay.
I use a Sony 18650 li-on battery to power this system. A 1S 10 A BMS unit is protecting the battery.
Even ...
- 1
-1
votes
1
answer
96
views
How is this solenoid going to last for months? [closed]
After buying a water control unit for my garden I got curious of how it worked, so I picked it apart and had a look before assembling it again :-). It uses 2x1.5V AA Alkaline batteries to output 3V (...
- 29
1
vote
4
answers
2k
views
How to design a solenoid.?
I want to design a DC solenoid valve that could compress a spring under 5 kg of load. All I know is the voltage (12V), load (5kg), the current range (15-20), and the cross-sectional area of the ...
- 11
0
votes
0
answers
123
views
Control flow rate of a solenoid valve using PWM
I'm hoping to control the flow of chemical by shutting a solenoid valve periodically over short intervals, similar to this video: https://youtu.be/O49mqn33vBI?t=6
Does anyone know if conventional ...
- 893
0
votes
2
answers
2k
views
What battery should I use to power a solenoid?
I’m quite new to electrical work and I’m trying to open and close a solenoid valve with a battery.
I have bought these tiny 23a 12 V batteries. The solenoid says it needs 12 VDC. I have no idea why it’...
- 325
0
votes
1
answer
936
views
Controlling a AC valve solenoid using a SSR relay
I have a micro controller based irrigation controller which should control solenoid valves.
The solenoid is 24V AC type, with 25 Ohm resistance.
I am considering to use some triac based SSR to switch ...
0
votes
2
answers
1k
views
Can I extend the life of a solenoid by reducing its supply voltage?
Say that I have a 12VDC 2A rated solenoid, but I test the lowest voltage that my solenoid operates reliably for my specific application. Could I just operate the solenoid at this lower voltage to ...
- 101
2
votes
0
answers
443
views
How do I prevent my BMS from tripping when solenoid is connected?
I am working on a project that is effectively just a battery powered reticulation system. It is charged through a solar array and cheap MPPT charger, which connects into the battery via the BMS. The ...
2
votes
1
answer
485
views
How does a washing machine intake solenoid valve control flow rate? [closed]
Our washing machine, an AEG L69480VFL ( seen here ) has a pair of solenoid valves on its water intake looking like this:
(One controls the flow to a tube running to a detergent compartment, the ...
- 133
-1
votes
1
answer
2k
views
Circuit to control 24VAC OR 24VDC solenoids
Is there a circuit out there that could control both 24VDC or 24VAC solenoids from a 24VDC power supply? I am working on a sprinkler control board that I would like to be able to use both on. The ...
- 149
0
votes
1
answer
725
views
How to use solenoid valve with vacuum pump
I am a software developer working on small pick and place machine. I have bought mini vacuum pump and one solenoid valve. I want to control vacuum pump suction through solenoid so that when from ...
- 111