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12KV
High Voltage Generator
The hobby circuit below uses an unusual method to generate about 12,000
volts with about 5uA of current. Two SCRs form two pulse generator
circuits. The two SCRs discharge a 0.047uF a 400v capacitor through
a xenon lamp trigger coil at 120 times a second. The high voltage
pulses produced at the secondary of the trigger coil are rectified using
two 6KV damper diodes. The voltage doubler circuit at the secondary
of the trigger coil charges up two high voltage disc capacitors up to
about 12KV. Although this circuit can’t produce a lot of current be
very careful with it. A 12KV spark can jump about 0.75 of an inch so
the electronic circuit needs to be carefully wired with lots of space
between components.
LOW POWER 12,000 VOLT POWER
SUPPLY If you need about 12,000
volts DC for an ion generator this circuit might be the ticket. It draws power
from the 120vac power line but it uses a small 6KV camera flash trigger coil.
The output signal is isolated from the power line. Although the circuit can only
deliver about 5uA of current it can produce dangerous shocks, so be careful.
SIMPLE NITROGEN SPARK
GENERATOR Nitrogen or air sparks
are very powerful light sources that produce flashes that last only a fewnanoseconds. This line powered circuit generates a continuous series of
very small sparks acrosselectrodes with a 0.05 inch
gap.
