<a href="https://en.wikipedia.org/wiki/Cockcroft-Walton_generator" class="extiw" title="w:Cockcroft-Walton generator">Cockcroft-Walton</a> voltage multiplier circuit, also called the Greinacher multiplier.  Powered by an alternating current, it produces a DC voltage at the righthand terminal equal to <b><i>NV</i><sub>pp</sub></b> where <b><i>V</i><sub>pp</sub></b> is the peak-to-peak voltage swing of the source, and <i><b>N</b></i> is the number of stages.  This diagram shows a 2 stage circuit.  The voltage multiplier is used widely in CRT television sets, photomultiplier tube power supplies, copiers, laser printers and the Cockcroft-Walton particle accelerator.
<a href="//commons.wikimedia.org/wiki/User:Talifero" title="User:Talifero">Talifero</a>
<span class="int-own-work" lang="en">Own work</span>