Capacitor Electrons Captor from Don Smith / Tesla

[madddann]

Hi tomd.

Don's small suitcase model has a 12V battery which runs a 2.5Kv RMS 12mA nst. This connects directly to a 8000uF DC capacitor rated at 480 volts. The circuit seems to be missing some diodes to convert the AC to pulsed DC. Then basically the cap connects to an isolation transformer and then the load.

Could you please point me to the circuit - schematic of the mentioned suitcase device? Been long time since I went through all the Don Smith material - already forgot where which info is.

How is it that a 480VDC capacitor is being charged by a 3.75Kv peak nst?

Did you ever try to capture a coil's flyback spike through a diode into a cap? What was the spike peak voltage and what was the cap voltage rating? Maybe put together the circuit and see what's going on.

[tomd]

Hi tomd.

Could you please point me to the circuit - schematic of the mentioned suitcase device? Been long time since I went through all the Don Smith material - already forgot where which info is.

Did you ever try to capture a coil's flyback spike through a diode into a cap? What was the spike peak voltage and what was the cap voltage rating? Maybe put together the circuit and see what's going on.

I have attached the schematic. I think the circuit needs a gdt between the cap and isolation transformer. The gdt would have a breakdown voltage less than the voltage rating of the cap (480v).

It seems to me this schematic would be easy to combine with Vortex's water ground cap charging.

[Vortex 22]

C-1 capacitor or bank of capacitor 8000 micro farads for 480 volts DC?

Power output
480 volts at 60 amps

My guess
It's a polar capacitor electrons Captor? Ok

[tomd]

C-1 capacitor or bank of capacitor 8000 micro farads for 480 volts DC?

Power output
480 volts at 60 amps

My guess
It's a polar capacitor electrons Captor? Ok

Yes. But how can a nst with a peak voltage of 3.75kv charge it without destroying it?

[tomd]

What's probably happening here. The capacitor time constant is much larger than the time required to reach maximum voltage.
The time constant is 8000uf*R. Let's say R is 10 ohms. So one time constant is 0.08s and it takes 5 time constants to charge a cap. After one time constant it will be 66% fully charged. At a frequency of 25KHz the maximum voltage of 3750 volts will occur after 0.00001 seconds. That's no where near enough time to build up enough charge to exceed the capacitor voltage rating.