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1000V/10mA switching power supply?

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steve_rb

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1kv power supply circuit

I want to build a 1000V/10mA switching power supply with 220V input (single phase). I am looking for a schematic of a similar power supply or something close to help me to find out how to start.
 

Primary side isn't specific to high voltage output, I think. So it's similar to other low power off-line SMPS. At the secondary, a cascade rectifier could ease transformer design.
 

What should I do to decrease output ripple as much as possible?

Any schematic even hand drawn will be appriciated?
 

the thing is you must used a higher value of filtering such as higher value of capacitor and inductor to lessen the output ripple voltage.
 

HV power supply design is not so easy: indeed the secondary winding of the transformer requires many turns, and thus has a large distributed capacity; that causes parasitic phenomena of oscillations, with overcurrents and overvoltages.
Generaly you have to use resonant design.
 

if your using a transformer that has limited output they you can multiple the result of the voltage (voltage multiplier)
 

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