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DC2AC inverter protection for portable Tesla Coil

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LAN_403

iRET

Sat Apr 04 2009, 10:04AM

Registered Member #258 Joined: Sun Feb 26 2006, 03:58PM
Location:
Posts: 21

Hi all,

What kinda of spike protection mechanism should I need to beef up an ordinary 12V to 110v/220v inverter ? My current setup consist of Inverter -> light dimmer -> 3uf microwave cap -> ignition coil -> hv bridge rectifier -> capacitor bank -> spark gap -> primary coil

Just killed my second 500w inverter by playing some sparks at the ignition coil electrodes...SSHhhh..

Dr. Dark Current

Sat Apr 04 2009, 10:07AM

Registered Member #152 Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384

The ignition coil+dimmer setup will always draw current spikes of several Amps, dont know any "protection" that could get rid of them...

iRET

Sat Apr 04 2009, 10:48AM

Registered Member #258 Joined: Sun Feb 26 2006, 03:58PM
Location:
Posts: 21

Hi Dr.Kilovolt,

What would you recommend for replacing ignition coil + dimmer setup? I was thinking of taking just the inverter step-up transformer 12v->110/220v and drive it with a 555 PWM.

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