Inventor · disambiguated record
Randhir S. Malik
Also filed as: MALIK RANDHIR · MALIK RANDHIR S · MALIK RANDHIR SINGH
86 granted patents·6 pending applications·2,003 citations·filing 1983–2019
99Inventor score
Top patents by PatentIndex Score
92 records- 0195US4586120ACurrent limit shutdown circuit with time delayAT & T BELL LAB·Filed 1983·Granted Apr 29, 1986·118 cites·5 claims
- 0293US6487098B2Power factor correction (PFC) circuit that eliminates an inrush current limit circuitIBM·Filed 2001·Granted Nov 26, 2002·85 cites·18 claims
- 0393US6487095B1Multiphase zero-volt-switching resonant DC-DC regulatorIBM·Filed 2001·Granted Nov 26, 2002·105 cites·23 claims
- 0491US5777539AInductor using multilayered printed circuit board for windingsIBM·Filed 1995·Granted Jul 7, 1998·75 cites·31 claims
- 0591US4605999ASelf-oscillating high frequency power converterAT & T BELL LAB·Filed 1985·Granted Aug 12, 1986·88 cites·23 claims
- 0689US7698095B2Apparatus, system, and method for detecting fan rotation direction in electronic devicesIBM·Filed 2008·Granted Apr 13, 2010·25 cites·20 claims
- 0789US5367247ACritically continuous boost converterIBM·Filed 1992·Granted Nov 22, 1994·117 cites·9 claims
- 0889US5319536APower system for parallel operation of AC/DC convertrsIBM·Filed 1991·Granted Jun 7, 1994·130 cites·16 claims
- 0988US6157168ASecondary power supply for an uninterruptible power systemIBM·Filed 1999·Granted Dec 5, 2000·134 cites·23 claims
- 1086US8854849B2Power-saving voltage converter systemKOBEDA EDWARD·Filed 2012·Granted Oct 7, 2014·11 cites·17 claims
- 1186US8405945B2Power distribution unit branch protectionDIMARCO ROBERT·Filed 2010·Granted Mar 26, 2013·9 cites·18 claims
- 1286US7888919B2Apparatus, system, and method for an adaptive high efficiency switching power supplyIBM·Filed 2008·Granted Feb 15, 2011·23 cites·20 claims
- 1386US7698585B2Apparatus, system, and method for reducing idle power in a power supplyIBM·Filed 2008·Granted Apr 13, 2010·17 cites·30 claims
- 1486US6445165B1Circuit for limiting inrush current to a power sourceIBM·Filed 2001·Granted Sep 3, 2002·53 cites·19 claims
- 1585US7908505B2Apparatus, system, and method for event, time, and failure state recording mechanism in a power supplyIBM·Filed 2007·Granted Mar 15, 2011·17 cites·25 claims
- 1684US7679217B2Apparatus, system, and method for a high efficiency redundant power systemIBM·Filed 2007·Granted Mar 16, 2010·25 cites·20 claims
- 1784US6522190B1High efficiency multiple input voltage sources power supplyIBM·Filed 2001·Granted Feb 18, 2003·52 cites·23 claims
- 1884US6181114B1Boost circuit which includes an additional winding for providing an auxiliary output voltageIBM·Filed 1999·Granted Jan 30, 2001·71 cites·3 claims
- 1983US6630753B2Low cost redundant AC to DC power supplyIBM·Filed 2001·Granted Oct 7, 2003·87 cites·35 claims
- 2083US6320771B1Fault tolerant active current sharingIBM·Filed 2000·Granted Nov 20, 2001·56 cites·8 claims
- 2181US7906871B2Apparatus, system, and method for reducing power consumption on devices with multiple power suppliesIBM·Filed 2008·Granted Mar 15, 2011·21 cites·20 claims
- 2280US8200990B2Apparatus, system, and method for a high efficiency redundant power architectureDISHMAN CECIL C·Filed 2007·Granted Jun 12, 2012·12 cites·20 claims
- 2380US8159160B2Apparatus, system, and method for improved fan control in a power supplyDISHMAN C CHARLES·Filed 2008·Granted Apr 17, 2012·11 cites·20 claims
- 2479US7705488B2Apparatus, system, and method for a high voltage, high frequency redundant bus power systemIBM·Filed 2007·Granted Apr 27, 2010·16 cites·19 claims
- 2579US5561596AAC line stabilization circuitry for high power factor loadsIBM·Filed 1994·Granted Oct 1, 1996·35 cites·24 claims
- 2677US8214165B2Apparatus, system, and method for precise early detection of AC power lossDISHMAN C CHARLES·Filed 2008·Granted Jul 3, 2012·9 cites·18 claims
- 2777US6188588B1Switching controller and method for operating a flyback converter in a critically continuous conduction modeIBM·Filed 1999·Granted Feb 13, 2001·52 cites·18 claims
- 2876US6697955B1Method and apparatus for using an energy reserve to provide voltage to a power factor correction circuit in the event of a power interuptionIBM·Filed 2000·Granted Feb 24, 2004·31 cites·29 claims
- 2975US8862278B2Power supply thermal profile selection managementIBM·Filed 2013·Granted Oct 14, 2014·5 cites·13 claims
- 3073US7602623B2Apparatus, system, and method for a low cost self-healing power supplyIBM·Filed 2007·Granted Oct 13, 2009·11 cites·20 claims
- 3172US8958220B2Power-saving voltage converter operationIBM·Filed 2013·Granted Feb 17, 2015·2 cites·2 claims
- 3271US8120300B2Fault tolerant cooling in a redundant power systemDISHMAN C CHARLES·Filed 2008·Granted Feb 21, 2012·7 cites·20 claims
- 3371US7956579B2Battery charge management system for charging a battery bank that includes a plurality of batteriesIBM·Filed 2007·Granted Jun 7, 2011·10 cites·15 claims
- 3471US5610803APulse width modulated power supply that reduces overshootIBM·Filed 1994·Granted Mar 11, 1997·38 cites·11 claims
- 3570US8232680B2Selecting a single AC source for a switching power supplyDIMARCO ROBERT·Filed 2009·Granted Jul 31, 2012·11 cites·16 claims
- 3670US6865094B2Circuit for AC adapter to reduce power drawn from an AC power sourceIBM·Filed 2003·Granted Mar 8, 2005·28 cites·10 claims
- 3770US6249411B1Over-voltage protection circuit and method for preventing system shutdown in a power system employing multiple power suppliesIBM·Filed 1999·Granted Jun 19, 2001·54 cites·20 claims
- 3869US6850396B1Fail safe circuit with reset capability for a power supplyIBM·Filed 2000·Granted Feb 1, 2005·15 cites·24 claims
- 3969US6747424B1Integrated fan speed control and fault detection circuitryIBM·Filed 2000·Granted Jun 8, 2004·16 cites·16 claims
- 4069US6297970B2Multiple output synchronous rectifier circuit providing zero volt switch mode operationIBM·Filed 1999·Granted Oct 2, 2001·37 cites·10 claims
- 4168US6448744B1Power factor correction circuitIBM·Filed 2000·Granted Sep 10, 2002·17 cites·7 claims
- 4266US11105863B2Burn-in system energy managementIBM·Filed 2019·Granted Aug 31, 2021·0 cites·14 claims
- 4366US7859132B2Apparatus, system, and method for safely connecting a device to a power sourceIBM·Filed 2008·Granted Dec 28, 2010·5 cites·20 claims
- 4466US6160724ABoost doubler circuit wherein an AC bridge rectifier is not requiredIBM·Filed 1999·Granted Dec 12, 2000·31 cites·11 claims
- 4565US8755200B2Single stage power conversion unit with circuit to smooth and holdup DC output voltageIBM·Filed 2013·Granted Jun 17, 2014·2 cites·20 claims
- 4665US6434026B1Multiple output power supply circuitIBM·Filed 2000·Granted Aug 13, 2002·19 cites·12 claims
- 4765US5563758ACircuit to permit three phase input power supply to operate when one phase drops out and provide lightening protectionIBM·Filed 1995·Granted Oct 8, 1996·26 cites·19 claims
- 4864US8159198B2Power supply that adjusts a transformer turns ratio to operate efficiently at high and low line inputDISHMAN CECIL C·Filed 2008·Granted Apr 17, 2012·7 cites·17 claims
- 4964US8103907B2Power architecture to provide power supply redundancyJANICK JAN M·Filed 2009·Granted Jan 24, 2012·4 cites·14 claims
- 5063US8471405B2High efficiency standby power generationDIMARCO ROBERT A·Filed 2010·Granted Jun 25, 2013·3 cites·21 claims
Showing the top 50 of 92 patent records by PatentIndex Score.
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