Inventor
KIM SANGSUN
US44 patents
⚠️ This page may combine multiple inventors who share the name “KIM SANGSUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GOOGLE INC
14 patentsUS9392720B1Jul 12, 2016
Server rack architecture that facilitates reduced current density
GOOGLE INC13 citations92
US9634512B1Apr 25, 2017
Battery backup with bi-directional converter
GOOGLE INC20 citations89
US9439327B1Sep 6, 2016
Vertical tray structure for rack in data center
GOOGLE INC12 citations84
US9413221B1Aug 9, 2016
Power conversion using a series of power converters
GOOGLE INC20 citations84
US9032250B1May 12, 2015
Online testing of secondary power unit
GOOGLE INC10 citations84
US9373977B1Jun 21, 2016
Battery backup system for uninterrupted power supply
GOOGLE INC10 citations83
US9712040B1Jul 18, 2017
Virtual impedance shaping
GOOGLE INC17 citations79
US9479077B1Oct 25, 2016
Three-phase power supply system
GOOGLE INC9 citations76
US9716408B2Jul 25, 2017
Redundant residential power sources
GOOGLE INC3 citations73
US9490720B1Nov 8, 2016
Power conversion with solid-state transformer
GOOGLE INC6 citations73
US9667094B1May 30, 2017
Battery backup system for uninterrupted power supply
GOOGLE INC4 citations72
US10033196B2Jul 24, 2018
Converting alternating current power to direct current power
GOOGLE INC4 citations62
US9843221B1Dec 12, 2017
Redundant charging and discharging MOSFET driving in battery backup system
GOOGLE INC1 citations59
US9692309B1Jun 27, 2017
AC power monitoring and parameter determination
GOOGLE INC0 citations51
KIM SANGSUN
13 patentsUS8278997B1Oct 2, 2012
Apparatus and methodology for controlling hot swap MOSFETs
KIM SANGSUN56 citations97
US9490663B1Nov 8, 2016
Apparatus and methodology for battery backup circuit and control in an uninterruptible power supply
KIM SANGSUN36 citations94
US9065277B1Jun 23, 2015
Battery backup system for uninterrupted power supply
KIM SANGSUN29 citations93
US9225202B1Dec 29, 2015
AC power control for a power supply system during AC line disturbance
KIM SANGSUN30 citations88
US9515520B1Dec 6, 2016
Battery backup based on voltage feed-forward control in a power supply
KIM SANGSUN9 citations84
US8270188B1Sep 18, 2012
Apparatus and methodology for generating an auxiliary low power output by using three-phase input power
KIM SANGSUN17 citations84
US9166410B1Oct 20, 2015
Line balancing for a three-phase alternating current system
KIM SANGSUN17 citations82
US9214833B1Dec 15, 2015
Redundant charging and discharging MOSFET driving in battery backup system
KIM SANGSUN7 citations81
US9035609B1May 19, 2015
Hot swap control in uninterruptible power supply
KIM SANGSUN7 citations80
US8810273B1Aug 19, 2014
Apparatus and methodology for instantaneous AC line fault detection
KIM SANGSUN7 citations76
US8872484B2Oct 28, 2014
Power factor correction circuitry and methodology to compensate for leading power factor
KIM SANGSUN5 citations73
US9548650B1Jan 17, 2017
AC power monitoring and parameter determination
KIM SANGSUN2 citations64
US9166423B2Oct 20, 2015
Battery leakage current elimination in UPS units
KIM SANGSUN1 citations53
GOOGLE LLC
10 patentsUS9966761B1May 8, 2018
Load curtailment on an electrical grid
GOOGLE LLC8 citations83
US9997917B2Jun 12, 2018
Transformerless power conversion
GOOGLE LLC5 citations80
US10327354B1Jun 18, 2019
Server rack architecture that facilitates reduced current density
GOOGLE LLC2 citations73
US10439399B2Oct 8, 2019
Transformerless power conversion
GOOGLE LLC2 citations69
US12556030B2Feb 17, 2026
Timing determination for UPS power transfer
GOOGLE LLC0 citations62
US12051940B2Jul 30, 2024
Timing determination for UPS power transfer
GOOGLE LLC1 citations62
US12081064B2Sep 3, 2024
System and method for transitioning to backup power pooling
GOOGLE LLC0 citations52
US10225948B1Mar 5, 2019
Server rack architecture that facilitates reduced current density
GOOGLE LLC0 citations52
US9967998B1May 8, 2018
Server rack architecture that facilitates reduced current density
GOOGLE LLC0 citations52
US10727673B2Jul 28, 2020
Transformerless power conversion
GOOGLE LLC0 citations48
MONOLITHIC POWER SYSTEMS INC
4 patentsUS7236041B2Jun 26, 2007
Isolated gate driver circuit for power switching devices
MONOLITHIC POWER SYSTEMS INC30 citations93
US7667410B2Feb 23, 2010
Equalizing discharge lamp currents in circuits
MONOLITHIC POWER SYSTEMS INC14 citations84
US7525258B2Apr 28, 2009
Current balancing techniques for fluorescent lamps
MONOLITHIC POWER SYSTEMS INC12 citations84
US7439685B2Oct 21, 2008
Current balancing technique with magnetic integration for fluorescent lamps
MONOLITHIC POWER SYSTEMS INC4 citations63