Assignee
MICREL INC
US347 patents
Top patents by PatentIndex Score
US7315052B2Jan 1, 2008
Power FET with embedded body pickup
MICREL INC159 citations98
US7064407B1Jun 20, 2006
JFET controlled schottky barrier diode
MICREL INC94 citations98
US6825531B1Nov 30, 2004
Lateral DMOS transistor with a self-aligned drain region
MICREL INC120 citations98
US7482793B2Jan 27, 2009
Ripple generation in buck regulator using fixed on-time control to enable the use of output capacitor having any ESR
MICREL INC57 citations97
US7307614B2Dec 11, 2007
Light emitting diode driver circuit
MICREL INC150 citations97
US7015680B2Mar 21, 2006
Current-limiting circuitry
MICREL INC76 citations97
US5568044AOct 22, 1996
Voltage regulator that operates in either PWM or PFM mode
MICREL INC360 citations97
US5447876ASep 5, 1995
Method of making a diamond shaped gate mesh for cellular MOS transistor array
MICREL INC137 citations97
US7550934B1Jun 23, 2009
LED driver with fast open circuit protection, short circuit compensation, and rapid brightness control response
MICREL INC161 citations96
US7482791B2Jan 27, 2009
Constant on-time regulator with internal ripple generation and improved output voltage accuracy
MICREL INC85 citations96
US7304464B2Dec 4, 2007
Switching voltage regulator with low current trickle mode
MICREL INC86 citations96
US7148670B2Dec 12, 2006
Dual mode buck regulator with improved transition between LDO and PWM operation
MICREL INC89 citations96
US6853174B1Feb 8, 2005
Selective high-side and low-side current sensing in switching power supplies
MICREL INC106 citations96
USRE37609EMar 26, 2002
Voltage regulator that operates in either PWM or PFM mode
MICREL INC90 citations96
US6307409B1Oct 23, 2001
Gate driver circuit for high and low side switches with primary and secondary shoot-through protection
MICREL INC78 citations96
US6242974B1Jun 5, 2001
Self-calibrating operational amplifier
MICREL INC67 citations96
US5517046AMay 14, 1996
High voltage lateral DMOS device with enhanced drift region
MICREL INC126 citations96
US5374844ADec 20, 1994
Bipolar transistor structure using ballast resistor
MICREL INC60 citations96
US5355008AOct 11, 1994
Diamond shaped gate mesh for cellular MOS transistor array
MICREL INC115 citations96
US7439945B1Oct 21, 2008
Light emitting diode driver circuit with high-speed pulse width modulated current control
MICREL INC72 citations95
US7230408B1Jun 12, 2007
Pulse frequency modulated voltage regulator with linear regulator control
MICREL INC64 citations95
US6377788B1Apr 23, 2002
Tunable filter in radio receiver
MICREL INC47 citations95
US6167246ADec 26, 2000
Fully integrated all-CMOS AM receiver
MICREL INC45 citations95
US4914546AApr 3, 1990
Stacked multi-polysilicon layer capacitor
MICREL INC91 citations95
US7064531B1Jun 20, 2006
PWM buck regulator with LDO standby mode
MICREL INC144 citations94
US6304108B1Oct 16, 2001
Reference-corrected ratiometric MOS current sensing circuit
MICREL INC72 citations94
US6275395B1Aug 14, 2001
Accelerated turn-off of MOS transistors by bootstrapping
MICREL INC58 citations94
US8593125B1Nov 26, 2013
Buck DC-DC converter with dual feedback control
MICREL INC37 citations93
US7433302B2Oct 7, 2008
Ethernet network implementing redundancy using a single category 5 cable
MICREL INC29 citations93
US7177325B2Feb 13, 2007
Operations, administration and maintenance (OAM) systems and methods for packet switched data networks
MICREL INC90 citations93
US7102394B1Sep 5, 2006
Programming and control of an integrated circuit using an externally connected resistor network
MICREL INC22 citations93
US7013355B2Mar 14, 2006
Device and method for improved serial bus transaction using incremental address decode
MICREL INC21 citations93
US6864537B1Mar 8, 2005
Thick gate oxide transistor and electrostatic discharge protection utilizing thick gate oxide transistors
MICREL INC21 citations93
US6650165B1Nov 18, 2003
Localized electrostatic discharge protection for integrated circuit input/output pads
MICREL INC23 citations93
US6593621B2Jul 15, 2003
LDMOS field effect transistor with improved ruggedness in narrow curved areas
MICREL INC92 citations93
US6204649B1Mar 20, 2001
PWM regulator with varying operating frequency for reduced EMI
MICREL INC84 citations93
US8878387B1Nov 4, 2014
Multi-level stack voltage system for integrated circuits
MICREL INC29 citations92
US7504748B2Mar 17, 2009
Relay switch including an energy detection circuit
MICREL INC23 citations92
US7415647B2Aug 19, 2008
Test mode for pin-limited devices
MICREL INC26 citations92
US7378827B2May 27, 2008
Analog internal soft-start and clamp circuit for switching regulator
MICREL INC33 citations92
US7348621B2Mar 25, 2008
Non-volatile memory cells
MICREL INC18 citations92
US7299029B2Nov 20, 2007
Method of operating radio receiver implemented in a single CMOS integrated circuit
MICREL INC13 citations92
US7145211B2Dec 5, 2006
Seal ring for mixed circuitry semiconductor devices
MICREL INC26 citations92
US7087973B2Aug 8, 2006
Ballast resistors for transistor devices
MICREL INC21 citations92
US7084612B2Aug 1, 2006
High efficiency linear regulator
MICREL INC56 citations92
US7019377B2Mar 28, 2006
Integrated circuit including high voltage devices and low voltage devices
MICREL INC36 citations92
US7002187B1Feb 21, 2006
Integrated schottky diode using buried power buss structure and method for making same
MICREL INC32 citations92
US6833586B2Dec 21, 2004
LDMOS transistor with high voltage source and drain terminals
MICREL INC29 citations92
US6809560B1Oct 26, 2004
Load sensing circuit for a power MOSFET switch
MICREL INC48 citations92
US6737841B2May 18, 2004
Amplifier circuit for adding a laplace transform zero in a linear integrated circuit
MICREL INC34 citations92
Showing the top 50 of 347 patents by PatentIndex Score.