Questions tagged [solenoid]
An electromagnet combined with an actuator to convert electrical energy into linear physical motion.
640
questions
0
votes
1
answer
32
views
Using a Relay to control an irrigation valve solenoid
I'm using a JQC-FC3VDC relay. I control it from a microscontroller using a 3.3V signal through an opto-link. And the business end of the relay controls a 24VAC output which then activates the ...
- 21.4k
1
vote
3
answers
1k
views
Emergency backup battery supply
I am building a NodeMCU-controlled 12 V solenoid. I am hoping to add an emergency backup battery supply, but the emergency backup supply should not power anything but the solenoid. In other words, if ...
CommunityBot
- 1
1
vote
0
answers
22
views
Sprinkler controller couples electrical noise between stations, firing wrong solenoid
I've been trying to troubleshoot a Toro DDCWP 4 battery-powered sprinkler controller which started exhibiting strange behavior this summer. This is a basic four-station controller paired with RainBrid ...
- 11
0
votes
1
answer
159
views
Can I use AC voltage for a solenoid lock?
I want to make a very high force solenoid lock. I want to use AC over DC because the most voltage I can get from DC is 12 V (I don't have a power source supply more than 12 V).
So can I use AC to make ...
CommunityBot
- 1
1
vote
0
answers
38
views
Ring Video Doorbell / ghost rings with 16 VAC solenoid chimes [closed]
I have:
Ring Video Doorbell
(x4) solenoid chime operating on 16 VAC
The chime is a pre-2000's analog device. Presumably it uses an analog circuit to ring the solenoids in a pattern to make a ...
- 137
0
votes
0
answers
23
views
Should solenoid be connected to NO or NC terminal of RF remote to retract plunger end off of edge of tiny spring-loaded door so it can snap closed?
Remote-control nestbox bird trap. End of solenoid plunger will rest on edge of the tiny, spring-loaded trap door to hold it open until remote control is used to trigger solenoid to retract, releasing ...
- 21
2
votes
1
answer
40
views
does rf remote transmitter power affect solenoid strength
Remote-control nestbox (bird) trap design calls for one 9V battery (pack with switch) boosted to 12V with MT3608 module to power 12V 433Mhz RF remote receiver, which is connected to a ZEY1-0530 ...
- 3,617
0
votes
3
answers
181
views
Using two switches to each send current in opposite directions
I have two momentary switches, one to activate a solenoid and one to reset it. It is only possible to press zero or one of the two switches at the same time. Using a single battery, how can I wire the ...
CommunityBot
- 1
0
votes
1
answer
188
views
Latching solenoid supply circuit / control
I have done DC motor control with an H-bridge circuit before. I used a 3.6 V, 9000 mAh (ERC26500) battery and had no problems.
Now I want to use a latching solenoid and I need 7.2 V for that, so I ...
CommunityBot
- 1
2
votes
1
answer
193
views
Basic circuit advice to control a solenoid at different currents
I am looking to control a solenoid at approx 1.4 A, 0.7 A, and 0 A with a rocker switch and will need constant current capable of 100% duty cycle at these currents.
The supply voltage will be a 12 V ...
CommunityBot
- 1
0
votes
1
answer
177
views
Raspberry Pi Zero - PWM & Python Help
Disclaimer: I am very new to electrical engineering, but I'm determined to figure this project out.
I'm currently working on electronic solenoid lock. Here's a image of what I have so far.
I have a ...
CommunityBot
- 1
0
votes
1
answer
196
views
Charging Battery via solar panel to power a push action solenoid
This is my first project ever, I'm running into some problems with the power supply stage, I hope you could help! I want to power a solenoid (12v/2A), which will get its voltage from a battery (12V/...
CommunityBot
- 1
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 ...
CommunityBot
- 1
1
vote
1
answer
72
views
Did I draw my circuit diagram correctly for 2 MOSFETS and a solenoid?
My project consists of one 5 V solenoid (but uses 3.3 V), one voltage regulator (5 V to 3.3 V), one diode, two N-channel MOSFET transistors, and one 5 V LED strip, all controlled by a Raspberry Pi ...
- 84.8k
4
votes
4
answers
1k
views
Can a slanted magnetic field be created with this insulated stranded wire arrangement?
I am considering building a small-scale experimental coil gun because I have an idea of how a magnetized projectile could be rotated while it is traveling through the coil(s), similar to how a bullet ...
- 1,414