Can anyone advise if this is safe?
I have an idea for a laser pulse drive using an 850V capacitor. If I feed 15VAC into the secondary of a 240V mains 6V output transformer, I get a calculated 600VAC out, which after a bridge rectifier (*1.414) gives me a 848.4V peak (no-load) voltage.
That looks ideal, and cheap, so I want to try it, but what other calculations should I do to set a safe VA or current rating for each selected transformer, assuming a maximum continuous current of 20 mA on the
600V output current. (There will be a brief surge as the capacitor charges, but I will limit that with a series resistor).I'll come back to this after hunting for a small 600V output transformer, but I don't hold out much hope of finding any, let alone as cheap as a combination of two small standard transformers.