Recent content by jmaniglia
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J
Drastically decreasing capacitor ESR
Well, now i will take that as there is not magic box to decrease ESR. NNNNNOOOOO! And i was hoping for an easy and cheap solution. =( Never works that way- jmaniglia
- Post #11
- Forum: Electrical Engineering
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J
Drastically decreasing capacitor ESR
Thank you what. I do understand that. And my system is one that already has around 20 to 30 capacitors in series and in parallel. series to decrease voltage (and sadly increase overall resistance) across a single capacitor, and parallel to rid myself of ESR. But I've run into a block. And I...- jmaniglia
- Post #8
- Forum: Electrical Engineering
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J
Design Powerful Electromagnet: Maximize Magnetic Field w/Constant Power
Just a little chime in, when you use your sensor to detect the distance to the object make sure that you use a "Schmidt Trigger" to simplify your circuit. A schmidth trigger is an Op-Amp IC that 'swtches on' and 'switches off' more realistically, rather than oscillating a certain point. Ex...- jmaniglia
- Post #17
- Forum: Electrical Engineering
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J
Drastically decreasing capacitor ESR
And sorry. to clarify, I'm attempting to get an ESR of LESS than 1 milli-ohm. I know, very lofty...- jmaniglia
- Post #6
- Forum: Electrical Engineering
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J
Drastically decreasing capacitor ESR
Exactly. Thank you for the ideas my friend, but that's why I've included decreasing the ESR with a single capacitor, since I have been successful on paper making a circuit with a low enough ESR, I've been unsuccessful in doing it within the budget...since to triple the voltage rating while...- jmaniglia
- Post #5
- Forum: Electrical Engineering
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J
Drastically decreasing capacitor ESR
I have looked into the large car audio systems. The problem with those is that their operating voltage, for inexpensive ones, is far too low. I'm looking at 1-2 kV for these babies! Most of the caps I'm looking at have a rating of 450-630 V- jmaniglia
- Post #3
- Forum: Electrical Engineering
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J
100% homemade railgun - capacitor question first
...F = I LxB where L and B are vectors and where the x represent a vector multiplication. B is the magnetic field and L the length of the projectile in which the current pass. Finally I is the current in amp. You can also calculate the energy given to the projectile by this force : Ek = F...- jmaniglia
- Post #13
- Forum: Electrical Engineering
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J
Substation Capacitor Bank Problem
Please don't take anything I say as an insult, I'm not sure of what you have tried to do to fix the situation. Possible problems (that I can see): - If the capacitors are electrolytic and polar, than the fuses could be installed to prevent the capacitors from being damaged when seeing a...- jmaniglia
- Post #4
- Forum: Electrical Engineering
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J
Drastically decreasing capacitor ESR
Hey all, I'm and Aerospace undergrad at Cal Poly working on my senior project, which has turned out to be more of a EE project than anything else. Anyways, I'm building a capacitor bank for the firing of an electromagnetic rail gun. I'm attempting to make a PFN (pulse forming network)...- jmaniglia
- Thread
- Capacitor decreasing Esr
- Replies: 13
- Forum: Electrical Engineering