Xenon Strobe Light

Posted on Nov 21, 2012

Since the circuit operates at greater than mains potential and is not isolated by a transformer, it is extremely dangerous. The DC operating potential is about 340V, and there is more than enough stored charge to kill you many times over (although in my experience, once is usually sufficient). This is not meant to be funny - this is truly serious stuff. In addition, the circuitry usually is directly mains (line) powered, with no isolation. Discharge all capacitors before working on any flash system.

Xenon Strobe Light
Click here to download the full size of the above Circuit.

A xenon flash tube is a triggered gas discharge device. A voltage may be impressed across the tube and it will not conduct until the xenon gas is ionised by an external high voltage (typically 3 to 5kV). Once triggered, the gas becomes a very low impedanc

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