323 / | HD | ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS |
304 | DF | SELF-REGULATING (E.G., NONRETROACTIVE) {2} |
311 | DF | .~ Using a three or more terminal semiconductive device as the final control device {1} |
312 | DF | .~.~ For current stabilization {2} |
315 | .~.~.~ Including parallel paths (e.g., current mirror) {2} | |
316 | DF | .~.~.~.~> With amplifier connected to or between current paths |
317 | DF | .~.~.~.~> With switched final control device |