363 / | HD | ELECTRIC POWER CONVERSION SYSTEMS |
13 | DF | CURRENT CONVERSION {25} |
15 | DF | .~ Including D.C.-A.C.-D.C. converter {5} |
16 | DF | .~.~ Having transistorized inverter {5} |
20 | .~.~.~ Single ended separately driven type {1} | |
21 | DF | .~.~.~.~> With automatic control of the magnitude of the output voltage or current |