I have a used but working PC power supply laying around. Can I use the 12V rail to power this? Can I use one rail or combine all the rails? What would be the "ideal" amperage for charging the capacitors used in this project? Thanks!
Sure you can. but better to read this post about any upgrades. This post is about your interest. th-cam.com/channels/j6sPESaMxC6O4u7Xb0Gibw.htmlcommunity
If you have a voltage source for 2.7V put the capacitors in parallel. If you have a voltage source of 5V, you can put the 2 capacitors in series - as long as they differ not too much in capacity. Don't put more voltage - unless you want to post a video of exploding capacitors (or a fontain of electrolyte)
@@megahertz6777 Great point! Connecting two 2.7V supercapacitors in series for a 5V source works as long as the capacitors have similar capacitance to share the voltage evenly. Adding a voltage-balancing circuit or resistors can also help prevent uneven voltage distribution. And yes, exceeding the voltage rating is definitely not recommended-safety first!
Thank you for your interest in Spot Welding project. I have create a detailed post to answer your question. please follow this link to get the answer th-cam.com/channels/j6sPESaMxC6O4u7Xb0Gibw.htmlcommunity?lb=Ugkx9askPdrmj8457vIJWzZOwwvqlHyapzx6
This proposal must be a joke. It makes no sense to connect capacitors in series as long as the voltage rating of the capacitor is higher than your power supply. You reduce the usable capacity and increase the total resistance of the capacitor by doing this. Your total capacity will be (4700uF+4700uF)/5 = 1880uF and resistance 2.5 times the resitance of one capacitor. This is MUCH less effect than using only one capacitor. 😞 Putting all in parallel you will get 47000uF and current limiting resistance only 10% of the value of one capacitor.
Thank you for your feedback! You're absolutely right-since the supply voltage is only 24V, a parallel configuration would provide much higher capacitance and current, making it more effective for spot welding. I appreciate your insight and will try to make another video with a better design. Stay tuned!
Thanks,
I have a used but working PC power supply laying around. Can I use the 12V rail to power this? Can I use one rail or combine all the rails? What would be the "ideal" amperage for charging the capacitors used in this project? Thanks!
A PC power supply delivers only 12V, which will work fine. However, for better performance, it is recommended to use a 24V power supply at 2A.
@@HobbyElectroLab Thanks.
Can I use a welding pen with a 2.7v 500f super capacitor? Of course I will connect it in series to make 2 super capacitors
Sure you can. but better to read this post about any upgrades. This post is about your interest. th-cam.com/channels/j6sPESaMxC6O4u7Xb0Gibw.htmlcommunity
@HobbyElectroLab thanks bro
If you have a voltage source for 2.7V put the capacitors in parallel.
If you have a voltage source of 5V, you can put the 2 capacitors in series - as long as they differ not too much in capacity.
Don't put more voltage - unless you want to post a video of exploding capacitors (or a fontain of electrolyte)
@@megahertz6777 Great point! Connecting two 2.7V supercapacitors in series for a 5V source works as long as the capacitors have similar capacitance to share the voltage evenly. Adding a voltage-balancing circuit or resistors can also help prevent uneven voltage distribution. And yes, exceeding the voltage rating is definitely not recommended-safety first!
what voltage rating do you use?
I used 12V DC but 24V can also be applied. make sure to match the capacitor's working voltage.
I want to ask, I have a 500f super capacitor with a voltage of 2.7 volts. Do you think I should combine it in series to 5 volts or in parallel?
Thank you for your interest in Spot Welding project. I have create a detailed post to answer your question. please follow this link to get the answer
th-cam.com/channels/j6sPESaMxC6O4u7Xb0Gibw.htmlcommunity?lb=Ugkx9askPdrmj8457vIJWzZOwwvqlHyapzx6
How many volts do you apply to the capacitors?
25v dc
This proposal must be a joke.
It makes no sense to connect capacitors in series as long as the voltage rating of the capacitor is higher than your power supply. You reduce the usable capacity and increase the total resistance of the capacitor by doing this. Your total capacity will be (4700uF+4700uF)/5 = 1880uF and resistance 2.5 times the resitance of one capacitor.
This is MUCH less effect than using only one capacitor. 😞
Putting all in parallel you will get 47000uF and current limiting resistance only 10% of the value of one capacitor.
Thank you for your feedback! You're absolutely right-since the supply voltage is only 24V, a parallel configuration would provide much higher capacitance and current, making it more effective for spot welding. I appreciate your insight and will try to make another video with a better design. Stay tuned!