Post by James Kelly on Jan 22, 2006 2:50:50 GMT
Among variouse other projects im undertaking, one of the most challeging yet it to build a coil gun, as it is potentially rather dangurouse 
However im sure it will work fine! Ive got 16 2200uF, 200V electrolytic capacitors to store the charged needed to fire a small metal projectile. The coil is quite small in comparison to the capacitor bank about 15cm long.
Im now kinda stuck over an electrical problem - back emf and switch sparking, from discharging the capacitors, this can potentially ruin the capacitors, ive been reading up and it appears that i need to iclude a diode and a switch in parallel with the capacitor bank to avoid the back emf and switch sparking.
Any know of the same problem who could help???
However im sure it will work fine! Ive got 16 2200uF, 200V electrolytic capacitors to store the charged needed to fire a small metal projectile. The coil is quite small in comparison to the capacitor bank about 15cm long.
Im now kinda stuck over an electrical problem - back emf and switch sparking, from discharging the capacitors, this can potentially ruin the capacitors, ive been reading up and it appears that i need to iclude a diode and a switch in parallel with the capacitor bank to avoid the back emf and switch sparking.
Any know of the same problem who could help???