Make a poweful (green) railgun!

Step 4 Make the charger

I used a voltage tripler, but this may be too powerful for smaller banks, and cause them to overcharge. The maximum output of this is 500 volts, I stop it when it reaches 400volts. Use this to make it:
http://www.coolcircuit.com/circuit/voltage/vt.GIF

Make sure your diodes are rated enough, or they will blow. This has a large insrush current, you must be on a house fuse that is rated for 20 amps or higher.

Note for 240v users:A voltage doubler will be enough for you guys.

Connect the voltage doubler to the bank, and take it to your banks peak voltage. Hold it there overnight, it will help your capacitor's.

Comments

[tom10122]

hey , i wanna use a 9 volt cause theres no chance ill be allowed to use an outlet since i already tripped the breaker a few times if i wired two volatge triplers together would it work? also do the caps have to just be greater then the input coltage or do they need to be greater then the output voltage?

[jj.inc]

Well, you could use a camera flash, although those take a second to recharge capacitors the size of my thumb, so maybe you should get your own 15 amp breaker so maybe an amp limiter.

[d3monhax0r]

When you say "Connect the voltage doubler to the bank, and take it to your banks peak voltage. Hold it there overnight, it will help your capacitor's." do you do it only once? or all the time?

Also, for the voltage tripler, will it constantly triple and charge up the capacitor? or only triple the amount of voltage you give it?