| Patent | Date |
|---|
Transformerless power conversion
Grant 10,727,673 - Kim , et al. | 2020-07-28 |
Transformerless Power Conversion
App 20190379207 - Kim; Sangsun ; et al. | 2019-12-12 |
Transformerless power conversion
Grant 10,439,399 - Kim , et al. O | 2019-10-08 |
Server rack architecture that facilitates reduced current density
Grant 10,327,354 - Kim , et al. | 2019-06-18 |
Server rack architecture that facilitates reduced current density
Grant 10,225,948 - Kim , et al. | 2019-03-05 |
Transformerless Power Conversion
App 20180248377 - Kim; Sangsun ; et al. | 2018-08-30 |
Converting alternating current power to direct current power
Grant 10,033,196 - Kim , et al. July 24, 2 | 2018-07-24 |
Transformerless power conversion
Grant 9,997,917 - Kim , et al. June 12, 2 | 2018-06-12 |
Server rack architecture that facilitates reduced current density
Grant 9,967,998 - Kim , et al. May 8, 2 | 2018-05-08 |
Load curtailment on an electrical grid
Grant 9,966,761 - Kim , et al. May 8, 2 | 2018-05-08 |
Redundant charging and discharging MOSFET driving in battery backup system
Grant 9,843,221 - Kim , et al. December 12, 2 | 2017-12-12 |
Redundant Residential Power Sources
App 20170288454 - Kim; Sangsun ; et al. | 2017-10-05 |
Redundant residential power sources
Grant 9,716,408 - Kim , et al. July 25, 2 | 2017-07-25 |
Virtual impedance shaping
Grant 9,712,040 - Kim , et al. July 18, 2 | 2017-07-18 |
AC power monitoring and parameter determination
Grant 9,692,309 - Kim , et al. June 27, 2 | 2017-06-27 |
Battery backup system for uninterrupted power supply
Grant 9,667,094 - Kim , et al. May 30, 2 | 2017-05-30 |
Battery backup with bi-directional converter
Grant 9,634,512 - Kim , et al. April 25, 2 | 2017-04-25 |
Converting Alternating Current Power to Direct Current Power
App 20170047744 - Kim; Sangsun ; et al. | 2017-02-16 |
Redundant Residential Power Sources
App 20170025891 - Kim; Sangsun ; et al. | 2017-01-26 |
AC power monitoring and parameter determination
Grant 9,548,650 - Kim , et al. January 17, 2 | 2017-01-17 |
Transformerless Power Conversion
App 20170005471 - Kim; Sangsun ; et al. | 2017-01-05 |
Battery backup based on voltage feed-forward control in a power supply
Grant 9,515,520 - Kim , et al. December 6, 2 | 2016-12-06 |
Power conversion with solid-state transformer
Grant 9,490,720 - Kim , et al. November 8, 2 | 2016-11-08 |
Apparatus and methodology for battery backup circuit and control in an uninterruptible power supply
Grant 9,490,663 - Kim , et al. November 8, 2 | 2016-11-08 |
Three-phase power supply system
Grant 9,479,077 - Kim , et al. October 25, 2 | 2016-10-25 |
Vertical tray structure for rack in data center
Grant 9,439,327 - Sheng , et al. September 6, 2 | 2016-09-06 |
Power conversion using a series of power converters
Grant 9,413,221 - Kim , et al. August 9, 2 | 2016-08-09 |
Server rack architecture that facilitates reduced current density
Grant 9,392,720 - Kim , et al. July 12, 2 | 2016-07-12 |
Battery backup system for uninterrupted power supply
Grant 9,373,977 - Kim , et al. June 21, 2 | 2016-06-21 |
Non-isolated intermediate bus converter
Grant 9,335,774 - Sheng , et al. May 10, 2 | 2016-05-10 |
AC power control for a power supply system during AC line disturbance
Grant 9,225,202 - Kim , et al. December 29, 2 | 2015-12-29 |
Redundant charging and discharging MOSFET driving in battery backup system
Grant 9,214,833 - Kim , et al. December 15, 2 | 2015-12-15 |
Battery leakage current elimination in UPS units
Grant 9,166,423 - Kim , et al. October 20, 2 | 2015-10-20 |
Line balancing for a three-phase alternating current system
Grant 9,166,410 - Kim , et al. October 20, 2 | 2015-10-20 |
Battery backup system for uninterrupted power supply
Grant 9,065,277 - Kim , et al. June 23, 2 | 2015-06-23 |
Hot swap control in uninterruptible power supply
Grant 9,035,609 - Kim , et al. May 19, 2 | 2015-05-19 |
Online testing of secondary power unit
Grant 9,032,250 - Krieger , et al. May 12, 2 | 2015-05-12 |
Vertical tray structure for rack in data center
Grant 8,964,374 - Sheng , et al. February 24, 2 | 2015-02-24 |
Power factor correction circuitry and methodology to compensate for leading power factor
Grant 8,872,484 - Kim October 28, 2 | 2014-10-28 |
Apparatus and methodology for instantaneous AC line fault detection
Grant 8,810,273 - Kim , et al. August 19, 2 | 2014-08-19 |
Uninterruptible Power Supply Control In Distributed Power Architecture
App 20130187468 - Kim; Sangsun ; et al. | 2013-07-25 |
Battery Leakage Current Elimination In Ups Units
App 20130187471 - Kim; Sangsun ; et al. | 2013-07-25 |
Power Factor Correction Circuitry And Methodology To Compensate For Leading Power Factor
App 20130043847 - Kim; Sangsun | 2013-02-21 |
Apparatus and methodology for controlling hot swap MOSFETs
Grant 8,278,997 - Kim , et al. October 2, 2 | 2012-10-02 |
Apparatus and methodology for generating an auxiliary low power output by using three-phase input power
Grant 8,270,188 - Kim September 18, 2 | 2012-09-18 |
Equalizing discharge lamp currents in circuits
Grant 7,667,410 - Kim , et al. February 23, 2 | 2010-02-23 |
Current balancing techniques for fluorescent lamps
Grant 7,525,258 - Kim , et al. April 28, 2 | 2009-04-28 |
Current balancing technique with magnetic integration for fluorescent lamps
Grant 7,439,685 - Kim , et al. October 21, 2 | 2008-10-21 |
Isolated gate driver circuit for power switching devices
Grant 7,236,041 - Kim , et al. June 26, 2 | 2007-06-26 |
Isolated gate driver circuit for power switching devices
App 20070025123 - Kim; Sangsun ; et al. | 2007-02-01 |
DC to DC converter with high frequency zigzag transformer
Grant 7,170,268 - Kim January 30, 2 | 2007-01-30 |
Current balancing techniques for fluorescent lamps
App 20070007910 - Kim; Sangsun ; et al. | 2007-01-11 |
Current balancing technique with magnetic integration for fluorescent lamps
App 20070007908 - Kim; Sangsun ; et al. | 2007-01-11 |
Equalizing discharge lamp currents in circuits
App 20070007909 - Kim; Sangsun ; et al. | 2007-01-11 |
DC to DC converter with high frequency zigzag transformer
App 20060028187 - Kim; Sangsun | 2006-02-09 |
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