All Questions
16
questions
0
votes
0
answers
248
views
Using ESP32, TIP120s, and 12V DC to power three 12V solenoids
I want to control three 12V solenoid valves with an ESP32, using the GPIO pins on the ESP to switch TIP120 MOSFETs.
The ESP would be powered by a separate USB supply.
I went to circuito.io and it ...
0
votes
1
answer
121
views
Thyristor external power supply
I am trying to make a kicker solenoid. My circuit is:
12 V battery connect to DC step up booster 300 V
diode
thyristor BTW69-1200 with external circuit (battery 1.5 V - resistor 1/4 W, 39 Ω)
...
- 465
4
votes
2
answers
248
views
Switching kicker solenoid with an idea out of the box
From my previous posting some may know I am planning to make a kicker solenoid.
The circuit specs:
Coil - 3.5 Ω, 3.4 mH (inductance)
Capacitor 1000 μF, 450 V
DC booster up to 410 V
12 V DC battery
...
- 465
0
votes
1
answer
57
views
Relay rating for 390 V solenoid
I saw a video using car relay 12V/40A for a solenoid using 390 VDC and about 80A.
https://youtu.be/fVGrYoqn-EU
https://youtu.be/GsnxzMAczHU
I know relay can suppress the back-EMF from coil.
I want to ...
- 465
1
vote
1
answer
270
views
Using a SSR for passing a DC PWM Signal that has positive and negative waveform
I am trying to control the PWM signal to a solenoid via an SSR by passing one leg through it to control the on/off.
I have tried 3 different SSR's and none of them fully stop the signal, I still get a ...
- 11
0
votes
1
answer
59
views
Light up an LED on turning on circuit
I have a 12V DC power supply which would be connected with a solenoid and a manual button as shown in circuit diagram image below.
The rating of solenoid is from 9V-12.5V. It takes 500mA at 12V.
My ...
- 233
1
vote
1
answer
409
views
Circuit giving values on both AC and DC
I have a generator stopper which works on 220 volt AC (in India 220 volt AC is normal supply) and has an electromagnet which pulls up a lever and the generator is stopped.
It works perfectly when the ...
- 39
1
vote
1
answer
334
views
Running AC solenoid vibration pump with DC voltage
Ulka e series solenoid vibration pump works with Ac voltage directly connected to main power.
They are rated at 220, 110, 24 voltage 50-60 Hz.
These pumps use an internal diode for removing half cycle ...
- 19
0
votes
2
answers
703
views
Solenoid Getting Hot and Not Functioning Properly
Please forgive my ignorance on this schematic. I am new to using relays and solenoids so my diagram may be a bit inaccurate.
I am attempting to control a DC solenoid with the GPIO pins from a ...
- 135
2
votes
1
answer
501
views
How can I build a circuit to drive a 12V solenoid from a 3V source, so up 3V to 12V by storing in capacitors, charge and discharge cycles?
No electronics background, noob, but I want to drive a small solenoid to cycle it everytime I push a button.
I wanted to use 2 AA batteries in series as they fit the size of my project well. I will ...
- 21
1
vote
4
answers
4k
views
24 VAC sprinkler valve using DC power
I am creating a circuit that includes a 24vac sprinkler solenoid. I need it to be portable so I'm planning on using DC current rather than AC. What is the best way to do this? If I just use straight ...
1
vote
1
answer
885
views
Water Solenoid Valve 12 DC vs 220 AC
I want to buy some solenoid valves for watering system and attach it to Raspberry. I have choice of Solenoid valve with 12DC and 220AC. Is there any difference between them? I mean, maybe 220AC valve ...
- 167
0
votes
1
answer
288
views
Figuring out how to power a solenoid
I have a solenoid with unknown specifications. I have contacted the manufacturer, but they are reluctant when it comes to sharing information about this product.
The problem
I need to trigger a ...
- 13
0
votes
3
answers
142
views
Voice Coil/ Solenoid driver
I am trying to figure out how to drive a solenoid/voice coil at 3V and 400-1000mA with a reciprocating output (forwards and reverse current) at around 50Hz as cheaply as possible. I have built some ...
0
votes
2
answers
5k
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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- 33