Скачать или смотреть Exploring a high voltage power supply

From the same range as another unit I looked at recently, this one has an open PCB power supply with a very retro, but good high voltage PSU.

Unlike many of the cheap eBay modules, this one hasn't skimped on components and pushed them hard. Instead it seems a logical and well thought-out design with the components kept within their ratings.
The filter across the transistor and complex feedback array to give fast transistor switching show that the person who designed this was knowledgeable in this area of design.

Current draw of this unit is around 100mA at 12V meaning it might be suited to use with a small solar panel in a remote location to keep cabins from going stale.

For those who haven't guessed, the unit is a vehicle ozone generator, which would actually be OK for freshening a stale vehicle interior, but might be a bit too strong for continuous use in a small vehicle cab.
The high negative voltage on the spikes causes a plasma discharge at the spike tips, and the charged air then gets attracted towards the positive plate, causing a surprisingly strong airflow with no moving parts. The plasma discharge causes oxygen molecules to break into separate oxygen atoms that can recombine temporarily as ozone and other molecules in the same process found in nature. These active components of air are a natural air sanitiser that has the ability to deactivate airborne contaminants like viruses, bacteria and spores. Although ozone is harmful in large quantities, it is safe at the levels found in nature.

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