ASTEC INTERNATIONAL LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 7339
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 1981
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 13107
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 1272
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 1166
 
  
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 490
 
  
 
H03K PULSE TECHNIQUE 4127
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 4152
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 3444
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 3130

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0104,340 CONSTANT CURRENT LIMITING PROTECTION FOR SERIES COUPLED POWER SUPPLIESOct 08, 15Apr 13, 17[H02J]
2016/0225,514 POWER TRANSFORMERS AND METHODS OF MANUFACTURING TRANSFORMERS AND WINDINGSFeb 04, 15Aug 04, 16[H01F]
2016/0226,385 DC-DC POWER CONVERTER FOR USE IN DATA COMMUNICATIONS DISTRIBUTED POWER ARCHITECTUREJan 29, 16Aug 04, 16[H02M]
2016/0117,908 SYSTEMS AND METHODS FOR COMMUNICATING DATA VIA LIGHT PULSESOct 08, 15Apr 28, 16[G08B, H04B]
2015/0200,597 Control Circuits And Methods For Regulating Output Voltages Using Multiple And/Or Adjustable Reference VoltagesJan 10, 14Jul 16, 15[H02M]
2015/0200,598 Control Circuits And Methods For Regulating Output Voltages Using Multiple And/Or Adjustable Reference VoltagesJan 10, 14Jul 16, 15[H02M]
2014/0217,832 DISCONNECT SWITCHES IN DC POWER SYSTEMSFeb 06, 13Aug 07, 14[H01H]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9906121 Control circuits and methods for transitioning between power converter control modesOct 08, 15Feb 27, 18[H02M]
9906135 Multiphase DC/DC converters and control circuits for controlling converters using fixed and/or variable frequenciesSep 21, 15Feb 27, 18[H02M]
9906150 Open loop bi-directional converters and corresponding control methodsNov 09, 16Feb 27, 18[H02M]
9891679 Single phase redundant power supply systems for reducing phase current imbalancesDec 22, 11Feb 13, 18[H02J, G06F, G05F]
9866133 Control circuits and methods for regulating output voltages using multiple and/or adjustable reference voltagesJan 10, 14Jan 09, 18[H02M]
9866134 Control circuits and methods for regulating output voltages using multiple and/or adjustable reference voltagesJan 10, 14Jan 09, 18[H02M]
9806519 Input redundant circuitOct 16, 14Oct 31, 17[H02M, H02H]
9787175 High voltage power converter with a configurable inputOct 10, 14Oct 10, 17[H02J, H02M]
9748830 Control circuits using different master-slave current sharing modesSep 30, 16Aug 29, 17[H02M]
9748948 Methods for overdriving a base current of an emitter switched bipolar junction transistor and corresponding circuitsDec 29, 16Aug 29, 17[H03K]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0197,914 TRANSFORMER ASSEMBLIES WITH MOVEABLE TERMINAL BLOCKSAbandonedJan 17, 13Jul 17, 14[H01F, H05K]
2014/0028,101 POWER SUPPLIES FOR SIMULTANEOUSLY PROVIDING AC AND DC POWERAbandonedJul 26, 12Jan 30, 14[H02J]
2013/0082,814 MULTI-WINDING MAGNETIC STRUCTURESAbandonedSep 30, 11Apr 04, 13[H01F]
8232674 Multiple output isolated DC/DC power convertersExpiredSep 11, 08Jul 31, 12[H02J]
2012/0139,442 Mains Dimmable LED Driver CircuitsAbandonedDec 07, 10Jun 07, 12[H05B]
8189351 Multi-input DC/DC converters with zero-current switchingExpiredFeb 23, 07May 29, 12[H02M]
2012/0080,943 Photovoltaic Power SystemsAbandonedDec 22, 10Apr 05, 12[H02J]
2012/0075,898 Photovoltaic Power Converters and Closed Loop Maximum Power Point TrackingAbandonedSep 28, 10Mar 29, 12[H02M]
2011/0254,531 Current Balancing Multiphase Power Converters, Controllers and MethodsAbandonedApr 20, 10Oct 20, 11[G05F]
2011/0074,383 Assemblies and Methods for Sensing Current Through Semiconductor Device LeadsAbandonedSep 29, 09Mar 31, 11[G01R]
2011/0075,392 Assemblies and Methods for Directly Connecting Integrated Circuits to Electrically Conductive SheetsAbandonedSep 29, 09Mar 31, 11[H05K]
2009/0284,303 CONTROL CIRCUITS AND METHODS FOR CONTROLLING SWITCHING DEVICESAbandonedMay 16, 08Nov 19, 09[H03K]
7616464 Reverse current control system for a power converterExpiredAug 16, 05Nov 10, 09[H02M, G05F]
7589505 Power supply with reliable voltage feedback control independent of any ground voltage differenceExpiredJun 14, 05Sep 15, 09[H02J, G05F]
7586765 Switched current power converter with reduced power losses during low load conditionsExpiredJul 26, 05Sep 08, 09[H02J, G05F]
2009/0129,127 METHODS AND DEVICES FOR INHIBITING NEGATIVE OUTPUT CURRENT DURING START-UP OF A SWITCH MODE POWER SUPPLYAbandonedNov 19, 07May 21, 09[H02M]
2009/0086,518 Switching mode power supplies with digital electromagnetic interference controlAbandonedJan 17, 08Apr 02, 09[H02M, G05F]
2009/0085,543 Variable Output Voltage Power ConverterAbandonedSep 25, 08Apr 02, 09[G05F]
2009/0073,731 Health monitoring of power converter fans and electric motorsAbandonedSep 14, 07Mar 19, 09[H02M, F01D]
7499299 Method and apparatus for reducing body diode conduction of synchronous rectifiersExpiredAug 27, 07Mar 03, 09[H02M]

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