Assignee
MICROSEMI CORP
US175 patents
Top patents by PatentIndex Score
US7239087B2Jul 3, 2007
Method and apparatus to drive LED arrays using time sharing technique
MICROSEMI CORP96 citations99
US7187139B2Mar 6, 2007
Split phase inverters for CCFL backlight system
MICROSEMI CORP61 citations98
US7183724B2Feb 27, 2007
Inverter with two switching stages for driving lamp
MICROSEMI CORP78 citations98
US6979959B2Dec 27, 2005
Apparatus and method for striking a fluorescent lamp
MICROSEMI CORP74 citations98
US6876157B2Apr 5, 2005
Lamp inverter with pre-regulator
MICROSEMI CORP93 citations98
US7851881B1Dec 14, 2010
Schottky barrier diode (SBD) and its off-shoot merged PN/Schottky diode or junction barrier Schottky (JBS) diode
MICROSEMI CORP87 citations97
US7528582B1May 5, 2009
Battery charging and discharging by using a bi-directional transistor
MICROSEMI CORP53 citations97
US7525291B1Apr 28, 2009
Linearly regulated battery charger
MICROSEMI CORP59 citations97
US7183727B2Feb 27, 2007
Optical and temperature feedbacks to control display brightness
MICROSEMI CORP121 citations97
US7102340B1Sep 5, 2006
Dual-mode PFM boost converter
MICROSEMI CORP132 citations97
US6870330B2Mar 22, 2005
Shorted lamp detection in backlight system
MICROSEMI CORP95 citations97
US7919952B1Apr 5, 2011
Automatic gain control technique for current monitoring in current-mode switching regulators
MICROSEMI CORP251 citations96
US7468722B2Dec 23, 2008
Method and apparatus to control display brightness with ambient light correction
MICROSEMI CORP54 citations96
US7425819B2Sep 16, 2008
Slope compensation circuit
MICROSEMI CORP79 citations96
US7294971B2Nov 13, 2007
Balancing transformers for ring balancer
MICROSEMI CORP42 citations96
US7242147B2Jul 10, 2007
Current sharing scheme for multiple CCF lamp operation
MICROSEMI CORP50 citations96
US7187140B2Mar 6, 2007
Lamp current control using profile synthesizer
MICROSEMI CORP55 citations96
US7141933B2Nov 28, 2006
Systems and methods for a transformer configuration for driving multiple gas discharge tubes in parallel
MICROSEMI CORP58 citations96
US7109691B2Sep 19, 2006
Systems for auto-interleaving synchronization in a multiphase switching power converter
MICROSEMI CORP65 citations96
US7061183B1Jun 13, 2006
Zigzag topology for balancing current among paralleled gas discharge lamps
MICROSEMI CORP60 citations96
US7005835B2Feb 28, 2006
Method and apparatus for load sharing in a multiphase switching power converter
MICROSEMI CORP80 citations96
US6812776B2Nov 2, 2004
Multiple output charge pump
MICROSEMI CORP50 citations96
US6636104B2Oct 21, 2003
Multiple output charge pump
MICROSEMI CORP72 citations96
US6763114B1Jul 13, 2004
Multiple channel class D audio amplifier
MICROSEMI CORP41 citations95
US6654268B2Nov 25, 2003
Method and apparatus for controlling minimum brightness of a fluorescent lamp
MICROSEMI CORP54 citations95
US6605931B2Aug 12, 2003
Switching regulator with transient recovery circuit
MICROSEMI CORP56 citations95
US7038288B2May 2, 2006
Front side illuminated photodiode with backside bump
MICROSEMI CORP64 citations94
US7868603B2Jan 11, 2011
Method and apparatus to compensate for supply voltage variations in a PWM-based voltage regulator
MICROSEMI CORP26 citations92
US7759906B2Jul 20, 2010
Linearly regulated battery charger
MICROSEMI CORP18 citations92
US7759907B2Jul 20, 2010
Battery charging and discharging by using a bi-directional transistor
MICROSEMI CORP13 citations92
US7466819B2Dec 16, 2008
System for powering a switch over data communication cabling infrastructure
MICROSEMI CORP13 citations92
US7414371B1Aug 19, 2008
Voltage regulation loop with variable gain control for inverter circuit
MICROSEMI CORP47 citations92
US7411360B2Aug 12, 2008
Apparatus and method for striking a fluorescent lamp
MICROSEMI CORP29 citations92
US7265499B2Sep 4, 2007
Current-mode direct-drive inverter
MICROSEMI CORP16 citations92
US7250731B2Jul 31, 2007
Primary side current balancing scheme for multiple CCF lamp operation
MICROSEMI CORP25 citations92
US7173382B2Feb 6, 2007
Nested balancing topology for balancing current among multiple lamps
MICROSEMI CORP43 citations92
US7161309B2Jan 9, 2007
Protecting a cold cathode fluorescent lamp from a large transient current when voltage supply transitions from a low to a high voltage
MICROSEMI CORP33 citations92
US7112929B2Sep 26, 2006
Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system
MICROSEMI CORP39 citations92
US6969958B2Nov 29, 2005
Square wave drive system
MICROSEMI CORP40 citations92
US6946806B1Sep 20, 2005
Method and apparatus for controlling minimum brightness of a fluorescent lamp
MICROSEMI CORP50 citations92
US6897709B2May 24, 2005
Charge pump regulator with load current control
MICROSEMI CORP33 citations92
US6825642B2Nov 30, 2004
Switching regulator with transient recovery circuit
MICROSEMI CORP19 citations92
US6784750B2Aug 31, 2004
Transimpedance amplifier with selective DC compensation
MICROSEMI CORP24 citations92
US7906943B2Mar 15, 2011
Boost converter with adaptive coil peak current
MICROSEMI CORP34 citations91
US7391172B2Jun 24, 2008
Optical and temperature feedbacks to control display brightness
MICROSEMI CORP20 citations91
US6965219B2Nov 15, 2005
Method and apparatus for auto-interleaving synchronization in a multiphase switching power converter
MICROSEMI CORP28 citations91
US6836103B2Dec 28, 2004
Method and apparatus for dithering auto-synchronization of a multiphase switching power converter
MICROSEMI CORP46 citations91
US6803825B2Oct 12, 2004
Pseudo-differential transimpedance amplifier
MICROSEMI CORP36 citations91
US7977928B2Jul 12, 2011
Method and apparatus for modifying right half-plane zero in a cascaded DC-DC buck-boost converter
MICROSEMI CORP29 citations90
US8368481B2Feb 5, 2013
RF switchable balun
MICROSEMI CORP47 citations89
Showing the top 50 of 175 patents by PatentIndex Score.