G05F 1/20

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Description

Class  G05F : SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES


Subclass 1/20: Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems Regulating voltage or current (G05F 1/02 takes precedence; for electric railways B60M 3/02) wherein the variable is actually regulated by the final control device is ac (G05F 1/625 takes precedence) using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices semiconductor devices only

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
11747841 Current control apparatusDec 09, 20Sep 05, 23EATON INTELLIGENT POWER LIMITED
10890932 Electrical network configured to magnetically couple to a winding and to control magnetic saturation in a magnetic coreAug 05, 19Jan 12, 21EATON INTELLIGENT POWER LIMITED
10871807 Power distribution system with thermal cutoff for dielectric cooling systemsJul 23, 18Dec 22, 20GREEN REVOLUTION COOLING, INC.
10861642 Power electronic tap changer module for transformerApr 29, 19Dec 08, 20ABB Schweiz AG
10483032 Flexible voltage transformation systemApr 24, 18Nov 19, 19ABB Schweiz AG
10181789 Signal isolatorJan 22, 15Jan 15, 19Phoenix Contact GmbH & Co. KG
10126774 Semiconductor chip and electronic apparatus including the sameAug 02, 17Nov 13, 18Samsung Electronics Co., Ltd.
9930812 Data centre cooling systemsMay 25, 11Mar 27, 18Bripco BVBA
9614436 Circuit and method for dynamic switching frequency adjustment in a power converterAug 09, 13Apr 04, 17LINEAR TECHNOLOGY CORPORATION
9588527 Method of operating on-load tap changerJan 15, 14Mar 07, 17MASCHINENFABRIK REINHAUSEN GMBH
9557754 Load tap changerApr 22, 14Jan 31, 17GENERAL ELECTRIC COMPANY
9502964 Systems and methods for skewing DC/DC converter phases to mitigate spursDec 16, 14Nov 22, 16INTEL CORPORATION
9467040 System, a method and a computer program product for controlling electric power supplyDec 06, 12Oct 11, 16ELTA SYSTEMS LTD.
9146570 Load current compesating output buffer feedback, pass, and sense circuitsApr 13, 11Sep 29, 15TEXAS INSTRUMENTS INCORPORATED
9013157 Phase-fired control arrangement and methodJul 08, 09Apr 21, 15SITEC GMBH
8207716 Useful improvements in the art of 3-phase electronic tap changer commutation deviceOct 24, 08Jun 26, 12Utility Systems Technologies, Inc.
7982442 Power systemFeb 11, 05Jul 19, 11ABB SCHWEIZ AG
7737667 3-phase electronic tap changer commutation and deviceOct 13, 05Jun 15, 10Utility Systems Technologies, Inc.
6836102 Booster type switching regulatorSep 17, 02Dec 28, 04SII SEMICONDUCTOR CORPORATION
6490157 Method and apparatus for providing managed modular sub-environments in a personal computerSep 01, 99Dec 03, 02INTEL CORPORATION

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2022/0308,605 WIND TURBINE TRANSFORMER CONTROLMay 12, 20Sep 29, 22Not available
2020/0057,461 Current Control ApparatusAug 05, 19Feb 20, 20Not available

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Patents Issued To Date - By Filing Year

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