A high magnitude potential supply comprises a first circuit (220, 224) for generating a first signal related to an output high magnitude potential (KV) across a pair of output terminals (113 and ground) of the supply, a second circuit (210, 218) for generating a second signal related to a desired output...http://www.google.es/patents/US6144570?utm_source=gb-gplus-sharePatente US6144570 - Control system for a HVDC power supply
