P

Inventor

MALIK RANDHIR S

US69 patents
⚠️ This page may combine multiple inventors who share the name “MALIK RANDHIR S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IBM

40 patents
US6487098B2Nov 26, 2002

Power factor correction (PFC) circuit that eliminates an inrush current limit circuit

IBM85 citations98
US6157168ADec 5, 2000

Secondary power supply for an uninterruptible power system

IBM134 citations98
US5319536AJun 7, 1994

Power system for parallel operation of AC/DC convertrs

IBM130 citations98
US6320771B1Nov 20, 2001

Fault tolerant active current sharing

IBM56 citations96
US6249411B1Jun 19, 2001

Over-voltage protection circuit and method for preventing system shutdown in a power system employing multiple power supplies

IBM54 citations96
US5367247ANov 22, 1994

Critically continuous boost converter

IBM117 citations94
US6697955B1Feb 24, 2004

Method and apparatus for using an energy reserve to provide voltage to a power factor correction circuit in the event of a power interuption

IBM31 citations93
US6434026B1Aug 13, 2002

Multiple output power supply circuit

IBM19 citations93
US6188588B1Feb 13, 2001

Switching controller and method for operating a flyback converter in a critically continuous conduction mode

IBM52 citations93
US6157555ADec 5, 2000

Current limiter responsive to changing parallel power supply capacity

IBM34 citations93
US5610803AMar 11, 1997

Pulse width modulated power supply that reduces overshoot

IBM38 citations93
US5561596AOct 1, 1996

AC line stabilization circuitry for high power factor loads

IBM35 citations93
US7888919B2Feb 15, 2011

Apparatus, system, and method for an adaptive high efficiency switching power supply

IBM23 citations92
US6630753B2Oct 7, 2003

Low cost redundant AC to DC power supply

IBM87 citations92
US7679217B2Mar 16, 2010

Apparatus, system, and method for a high efficiency redundant power system

IBM25 citations91
US6865094B2Mar 8, 2005

Circuit for AC adapter to reduce power drawn from an AC power source

IBM28 citations91
US7906871B2Mar 15, 2011

Apparatus, system, and method for reducing power consumption on devices with multiple power supplies

IBM21 citations90
US7698095B2Apr 13, 2010

Apparatus, system, and method for detecting fan rotation direction in electronic devices

IBM25 citations90
US5563758AOct 8, 1996

Circuit to permit three phase input power supply to operate when one phase drops out and provide lightening protection

IBM26 citations88
US6747424B1Jun 8, 2004

Integrated fan speed control and fault detection circuitry

IBM16 citations84
US6621718B1Sep 16, 2003

Resonant converter circuit

IBM15 citations84
US6448744B1Sep 10, 2002

Power factor correction circuit

IBM17 citations84
US7956579B2Jun 7, 2011

Battery charge management system for charging a battery bank that includes a plurality of batteries

IBM10 citations83
US7705488B2Apr 27, 2010

Apparatus, system, and method for a high voltage, high frequency redundant bus power system

IBM16 citations83
US7698585B2Apr 13, 2010

Apparatus, system, and method for reducing idle power in a power supply

IBM17 citations82
US7602623B2Oct 13, 2009

Apparatus, system, and method for a low cost self-healing power supply

IBM11 citations82
US7908505B2Mar 15, 2011

Apparatus, system, and method for event, time, and failure state recording mechanism in a power supply

IBM17 citations81
US5373434ADec 13, 1994

Pulse width modulated power supply

IBM13 citations74
US8054599B2Nov 8, 2011

Apparatus, system, and method for detecting a power system component failure

IBM2 citations63
US7919840B2Apr 5, 2011

Integrated non-isolated VRM and microprocessor assembly

IBM2 citations63
US7826236B2Nov 2, 2010

Apparatus, system, and method for a switching power supply with high efficiency near zero load conditions

IBM5 citations63
US5488551AJan 30, 1996

Pulse width modulated power supply which avoids excessive on-time of switch during start-up

IBM4 citations63
US7759964B2Jul 20, 2010

Apparatus, system, and method determining voltage, current, and power in a switching regulator

IBM4 citations62
US6621180B2Sep 16, 2003

Method and system for maintaining full power during a power interruption in a multiple power supply system

IBM6 citations62
US6373722B1Apr 16, 2002

Power supply system for providing an auxiliary output voltage

IBM6 citations62
US8958220B2Feb 17, 2015

Power-saving voltage converter operation

IBM2 citations61
US8039989B2Oct 18, 2011

Apparatus, system, and method for a low cost multiple output redundant power supply

IBM3 citations61
US8018088B2Sep 13, 2011

Apparatus, system, and method for a synchronous multiple output power supply

IBM2 citations61
US7724487B2May 25, 2010

Apparatus, system, and method for lossless reverse voltage protection

IBM2 citations61
US6097583AAug 1, 2000

Rapid short circuit protection for a multiple output power supply

IBM3 citations61

DISHMAN C CHARLES

3 patents

AT & T BELL LAB

2 patents

DISHMAN CECIL C

2 patents

DIMARCO ROBERT

2 patents

KOBEDA EDWARD

1 patent

Showing the top 50 of 69 patents by PatentIndex Score.