323 / | HD | ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS |
318 | DF | EXTERNAL OR OPERATOR CONTROLLED {5} |
328 | DF | .~ Using a transformer or inductor as the final control device {6} |
329 | DF | .~.~ Controllably saturable {5} |
332 | .~.~.~ With plural power windings {3} | |
333 | DF | .~.~.~.~> In bridge configuration or in bridge arm |
334 | DF | .~.~.~.~> On different legs of single core |
335 | DF | .~.~.~.~> On different cores {2} |