Subclass |
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ClassTitle
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ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS
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201 | | INCLUDING A DYNAMOELECTRIC MACHINE |
202 | | . Balancer sets |
203 | | . With plural sets of slip rings or brushes |
204 | | . Condition responsive |
205 | | FOR REACTIVE POWER CONTROL |
206 | | . Using saturable inductor |
207 | | . Using converter |
208 | | . Using impedance |
209 | | . . Switched impedance |
210 | | . . . Static switch |
211 | | . . . . Digitally controlled |
212 | | FOR PHASE SHIFT OR CONTROL |
213 | | . By splitting and combining |
214 | | . Using saturable inductor |
215 | | . Using transformer |
216 | | . . With movable structure or winding |
217 | | . Using a three or more terminal semiconductive device |
218 | | . Using impedance |
219 | | . . In bridge |
220 | | IN SHUNT WITH SOURCE OR LOAD |
221 | | . Photo responsive |
222 | | . Using choke and switch across source |
223 | | . Using a three or more terminal semiconductive device |
224 | | . . With additional series regulator |
225 | | . . Plural devices |
226 | | . . Linearly acting |
227 | | . Using electronic tube |
228 | | . . With additional series regulator |
229 | | . Using diode |
230 | | . . Inverse parallel |
231 | | . . Zener |
232 | | . Using inductor |
233 | | . Using impedance |
234 | | OUTPUT LEVEL RESPONSIVE |
235 | | . Zero switching |
236 | | . . Nonelectrical condition sensing |
237 | | . Phase controlled switching using electronic tube or a three or more terminal semiconductive device |
238 | | . . With soft start |
239 | | . . Including single unidirectional element with bidirectional pass |
240 | | . . Including saturable inductor in trigger circuit |
241 | | . . With digital control |
242 | | . . Including ramp generator or controlled capacitor charging |
243 | | . . . As input to comparator |
244 | | . . With synchronization |
245 | | . . With nonelectrical condition sensing |
246 | | . . With plural condition sensing |
247 | | . Using a transformer or inductor as the final control device |
248 | | . . Ferroresonant |
249 | | . . Controllably saturable |
250 | | . . . With specific core structure (e.g., gap, aperture, slot, permanent magnet) |
251 | | . . . With plural power windings |
252 | | . . . . In bridge configuration or in bridge arm |
253 | | . . . . On different cores |
254 | | . . . With electronic tube or a three or more terminal semiconductive device in control circuit |
255 | | . . Having a variable length winding (e.g., tapped) as the final control device |
256 | | . . . With motor driven tap switch |
257 | | . . . . Including an electronic tube or a three or more terminal semiconductive device in control circuit |
258 | | . . . With electronic tube or a three or more terminal semiconductive device as tap switch |
259 | | . . Having a winding in series with the source and load (e.g., buck-boost) |
260 | | . . . With motor in control circuit |
261 | | . . . With saturable reactor in control circuit |
262 | | . . . Plural windngs in series |
263 | | . . . With electronic tube or a three or more terminal semiconductive device in control circuit |
264 | | . . Having movable structure or winding |
265 | | . Using a three or more terminal semiconductive device as the final control device |
266 | | . . Including pre or post regulation |
267 | | . . Including plural loads commonly controlled |
268 | | . . Including plural final control devices |
269 | | . . . Linearly acting parallel connected |
270 | | . . . Linearly acting series connected |
271 | | . . . Switched (e.g., on-off control) |
272 | | . . . . Parallel connected |
273 | | . . Linearly acting |
274 | | . . . With threshold detection |
275 | | . . . With plural condition sensing |
276 | | . . . . For protective system |
277 | | . . . . . With current sensor |
278 | | . . . . . . Having base-emitter of transistor coupled across sensor |
279 | | . . . . Including final control device parameter |
280 | | . . . With a specific feedback amplifier (e.g., integrator, summer) |
281 | | . . . With reference voltage circuitry |
282 | | . . Switched (e.g., switching regulators) |
283 | | . . . Digitally controlled |
284 | | . . . With threshold detection |
285 | | . . . With plural condition sensing |
286 | | . . . . Including filter sensing |
287 | | . . . . . In flyback path |
288 | | . . . With ramp generator or controlled capacitor charging |
289 | | . . . With base drive control dissipation |
290 | | . . . With inductor in control circuit |
291 | | . Using an electronic tube as the final control device |
292 | | . . With a three or more terminal semiconductive device in control circuit |
293 | | . Using an impedance as the final control device |
294 | | . . Hall effect device, magnetoresistor or thermistor |
295 | | . . Pressure sensitive resistor |
296 | | . . Liquid contact resistor |
297 | | . . Plural selective resistors |
298 | | . . Variable resistor |
299 | | INPUT LEVEL RESPONSIVE |
300 | | . Phase controlled switching using electronic tube or a three or more terminal semiconductive device |
301 | | . Using a transformer or inductor as the final control device |
302 | | . . Saturable |
303 | | . Using a linearly acting final control device |
304 | | SELF-REGULATING (E.G., NONRETROACTIVE) |
305 | | . Using a transformer or inductor as the final control device |
306 | | . . Ferroresonant |
307 | | . . . With plural cores |
308 | | . . . With core having an air gap or magnetic shunt |
309 | | . . . . Including a ferrocapacitor across a tertiary winding |
310 | | . . Controllably saturable |
311 | | . Using a three or more terminal semiconductive device as the final control device |
312 | | . . For current stabilization |
313 | | . . . To derive a voltage reference (e.g., band gap regulator) |
314 | | . . . . With additional stage |
315 | | . . . Including parallel paths (e.g., current mirror) |
316 | | . . . . With amplifier connected to or between current paths |
317 | | . . . . With switched final control device |
318 | | EXTERNAL OR OPERATOR CONTROLLED |
319 | | . Zero switching |
320 | | . Phase controlled switching using electronic tube or a three or more terminal semiconductive device |
321 | | . . With soft start |
322 | | . . With digital control |
323 | | . . With interval timer |
324 | | . . Using single unidirectional element with bidirectional pass |
325 | | . . With a three or more terminal semiconductive device in trigger circuit |
326 | | . . . Including ramp generator or controlled capacitor charging |
327 | | . . With passive element only in trigger circuit |
328 | | . Using a transformer or inductor as the final control device |
329 | | . . Controllably saturable |
330 | | . . . With permanent magnet |
331 | | . . . With core having a gap, aperture, or slot |
332 | | . . . With plural power windings |
333 | | . . . . In bridge configuration or in bridge arm |
334 | | . . . . On different legs of single core |
335 | | . . . . On different cores |
336 | | . . . . . Multistage |
337 | | . . . . . Push-pull |
338 | | . . . With plural cores |
339 | | . . . Including an electronic tube or a three or more terminal semiconductive device in control circuit |
340 | | . . Having a variable length winding (e.g., tapped) as the final control device |
341 | | . . . With motor driven tap switch |
342 | | . . . With other transformer |
343 | | . . . With a three or more terminal semiconductive device |
344 | | . . Having a windng in series with the source and load (e.g., buck-boost) |
345 | | . . Having a switch in series with winding |
346 | | . . Having series-parallel connectable windings |
347 | | . . Having movable structure or winding |
348 | | . . . Including rotary motion |
349 | | . Using a three or more terminal semiconductive device as the final control device |
350 | | . . Including plural final control devices |
351 | | . . Switched (e.g., switching regulators) |
352 | | . Using an impedance as the final control device |
353 | | . . Resistor |
354 | | . . . Selective |
355 | | INCLUDING A TRANSFORMER OR AN INDUCTOR |
356 | | . With compensation |
357 | | . . For current transformer |
358 | | . Current transformer |
359 | | . Potential transformer |
360 | | . Superconductive |
361 | | . Polyphase or plural transformers |
362 | | . With core having permanent magnet or air gap |
363 | | . Inductor with or in a bridge |
364 | | INCLUDING AN IMPEDANCE |
365 | | . In a bridge |
366 | | . . Thermistor |
367 | | . . Resistor only |
368 | | . Hall effect device or magnetoresistor |
369 | | . Thermistor or resistor |
370 | | . . With capacitor |
371 | | MISCELLANEOUS |
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| | CROSS-REFERENCE ART COLLECTIONS |
| | ****************************** |
901 | | STARTING CIRCUITS |
902 | | OPTICAL COUPLING TO SEMICONDUCTOR |
903 | | PRECIPITATORS |
904 | | TOUCH SYSTEMS |
905 | | LAMP DIMMER STRUCTURE |
906 | | SOLAR CELL SYSTEMS |
907 | | TEMPERATURE COMPENSATION OF SEMICONDUCTOR |
908 | | INRUSH CURRENT LIMITERS |
909 | | REMOTE SENSING |
910 | | TWO OF THREE PHASES REGULATED |
911 | | MEDICAL ELECTRONICS |