363 / | HD | ELECTRIC POWER CONVERSION SYSTEMS |
13 | DF | CURRENT CONVERSION {25} |
15 | DF | .~ Including D.C.-A.C.-D.C. converter {5} |
27 | DF | .~.~ Having thyristor inverter (e.g., SCR) {1} |
28 | .~.~.~ With automatic control of the magnitude of the output voltage or current |