| Patent | Date |
|---|
System and method for generator frequency control during UPS power walk-in
Grant 11,183,869 - Bush , et al. November 23, 2 | 2021-11-23 |
System And Method For Generator Frequency Control During Ups Power Walk-in
App 20200321800 - BUSH; Terry D. ; et al. | 2020-10-08 |
Method of mitigating effects of AC input voltage surge in a transformer-less rectifier uninterruptible power supply system
Grant 10,637,279 - Heber , et al. | 2020-04-28 |
3-wire transformer-free UPS system and method of control to reduce common mode current
Grant 10,340,733 - Shires , et al. | 2019-07-02 |
Method for balancing power in paralleled converters
Grant 10,277,066 - Bush , et al. | 2019-04-30 |
Method Of Mitigating Effects Of AC Input Voltage Surge In A Transformer-Less Rectifier Uninterruptible Power Supply System
App 20180241246 - HEBER; Brian P. ; et al. | 2018-08-23 |
Method for detecting a failing rectifier or rectifier source
Grant 10,042,007 - Heber August 7, 2 | 2018-08-07 |
Techniques for improving operation of static transfer switches during voltage disturbances
Grant 9,876,390 - Bush , et al. January 23, 2 | 2018-01-23 |
Method to select optimal synchronization source in a multiple uninterruptible power supply system
Grant 9,843,188 - Chen , et al. December 12, 2 | 2017-12-12 |
Systems and methods for balancing UPS output voltages during transitions between operating modes
Grant 9,531,288 - Bush , et al. December 27, 2 | 2016-12-27 |
Method For Balancing Power In Paralleled Converters
App 20160308389 - BUSH; Terry D. ; et al. | 2016-10-20 |
Multiple UPS system having multi-way power tie system and intelligent power sharing control
Grant 9,431,854 - Chen , et al. August 30, 2 | 2016-08-30 |
Method For Detecting A Failing Rectifier Or Rectifier Source
App 20160223620 - HEBER; Brian P. | 2016-08-04 |
3-wire Transformer-free Ups System And Method Of Control To Reduce Common Mode Current
App 20150244206 - SHIRES; Edwin ; et al. | 2015-08-27 |
Method To Select Optimal Synchronization Source In A Multiple Uninterruptible Power Supply System
App 20150137604 - CHEN; Xian ; et al. | 2015-05-21 |
Multiple Ups System Having Multi-way Power Tie System And Intelligent Power Sharing Control
App 20140159493 - CHEN; Xian ; et al. | 2014-06-12 |
Systems And Methods For Balancing UPS Output Voltages During Transitions Between Operating Modes
App 20140139022 - BUSH; Terry D. ; et al. | 2014-05-22 |
Techniques For Improving Operation Of Static Transfer Switches During Voltage Disturbances
App 20140132074 - Bush; Terry D. ; et al. | 2014-05-15 |
Maximized battery run-time in a parallel UPS system
Grant 8,271,146 - Heber , et al. September 18, 2 | 2012-09-18 |
System and method for detecting an electrical short across a static switch of an uninterruptible power supply
Grant 8,060,321 - Heber , et al. November 15, 2 | 2011-11-15 |
Power supply system with adaptive blown fuse detection using negative sequence component
Grant 8,035,944 - Chen , et al. October 11, 2 | 2011-10-11 |
Intelligent sensorless control of a phase controlled rectifier
Grant 7,864,552 - Heber , et al. January 4, 2 | 2011-01-04 |
Maximized Battery Run-time In A Parallel Ups System
App 20100082173 - Heber; Brian P. ; et al. | 2010-04-01 |
Intelligent Sensorless Control Of A Phase Controlled Rectifier
App 20100067269 - Heber; Brian P. ; et al. | 2010-03-18 |
Maximized battery run-time in a parallel UPS system
Grant 7,668,624 - Heber , et al. February 23, 2 | 2010-02-23 |
System And Method For Detecting An Electrical Short Across A Static Switch Of An Uninterruptible Power Supply
App 20100042344 - Heber; Brian P. ; et al. | 2010-02-18 |
Undervoltage Transfer Detection
App 20090251005 - BUSH; Terry D. ; et al. | 2009-10-08 |
Power Supply System With Adaptive Blown Fuse Detection Using Negative Sequence Component
App 20090213627 - Chen; Xian ; et al. | 2009-08-27 |
Maximized Battery Run-time In A Parallel Ups System
App 20070007825 - Heber; Brian P. ; et al. | 2007-01-11 |
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