G05F 1/20

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
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
5760631 Protection circuit for a CMOS integrated circuitJul 23, 96Jun 02, 98WINBOND ELECTRONICS CORP.
5654627 Method of automatically changing upper, balanced and lower voltage in electric power saving transformer and the device of the sameJan 05, 96Aug 05, 97POWERPERFECTOR LIMITED
5604424 Electrical changeover switchingMay 04, 94Feb 18, 97The National Grid Company PLC
5581173 Microcontroller-based tap changer controller employing half-wave digitization of A.C. signalsNov 09, 93Dec 03, 96BECKWITH ELECTRIC CO., INC.
5455505 Removable field programmable data memory storage moduleAug 02, 93Oct 03, 95SIEMENS ENERGY, INC.
5327355 Voltage or reactive power control method and control device thereforJan 17, 92Jul 05, 94HITACHI, LTD.
5136233 Means and method for controlling elecrical transformer voltage regulating tapchangersApr 09, 91Aug 04, 92MIDAMERICAN ENERGY COMPANY

Showing 1 to 20 of 30 results