Voltage Doubler

I have a design for which I need to generate a high DC voltage (more than

Out of the 2 options the voltage doubler seems the most straightforward. Some questions I have on this setup are:

If you have any opinions or advice on this subject then please share them.

Thank you.

doubler?

might use an inrush current limiter to safeguard your setup if using 230Vac as input might think of fusing the output (PTC or fuse) be very carefull if using mains directly, for personal security

Looks like you could find a suitable transformer if you hunted around at some sources that carry old tube type radio equipment. They would have 460 volt output or close transformers........also.....couldnt a person use a microwave oven transformer and strip off some of the secondary windings till he got the desired output ???

Actually, the voltage doubler could, depending on the current you draw and the size of the capacitors, give you an output of twice the peak voltage (230V is the RMS value). This could be closer to 650V.

Don't forget that the capacitors could remain charged after you disconnect the mains. Be very careful.

Gareth.

Theyre not built for continuous duty. You could try two in parallel.

Either case will make the transformer saturate and catch fire.

John

You might look for dual-primary transformers, designed to allow easy conversion between 120V and 240V systems. In normal use for 240V, you would put the two primaries in series. Instead, you can either use only one primary (if your load current is small compared to the transformer rating), or hook them in parallel with the proper polarity to get double the output voltage.

Just a thought.

Bob Masta dqatechATdaqartaDOTcom D A Q A R T A Data AcQuisition And Real-Time Analysis

Don't run it that hard next time! ;-)

Bob Masta dqatechATdaqartaDOTcom D A Q A R T A Data AcQuisition And Real-Time Analysis