R
Randhir S. Malik
Researcher at IBM
Publications - 93
Citations - 1287
Randhir S. Malik is an academic researcher from IBM. The author has contributed to research in topics: Switched-mode power supply & Power factor. The author has an hindex of 21, co-authored 93 publications receiving 1287 citations.
Papers
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Patent
Critically continuous boost converter
Stephen Francis Newton,William Steven Blocher,Bruce M. Cassidy,James Oliver Groves,Randhir S. Malik +4 more
TL;DR: In this article, a correction circuit is provided which extends the on time as a function of the input and output voltage to avoid dead time around the zero voltage crossover of the sinusoidal input voltage which when rectified provides the input voltage to the converter.
Patent
Secondary power supply for an uninterruptible power system
TL;DR: In this paper, a secondary power supply with a battery charging circuit for use with a primary power supply having an AC power relay coupled to a AC power source and a DC/DC power converter is disclosed.
Patent
Low cost redundant AC to DC power supply
TL;DR: The power supply in this paper provides AC redundancy while also preventing voltages from multiple AC voltage sources from adding at a common node by ensuring that only one AC voltage source at a time is providing the voltage at the output.
Patent
Power factor correction (PFC) circuit that eliminates an inrush current limit circuit
Randhir S. Malik,William Hemena +1 more
TL;DR: In this paper, a buck/boost circuit was proposed for achieving a DC voltage from an AC input voltage signal line without developing an inrush current from the AC input input voltage line, and a DC/DC converter circuit coupled to the buck-boost circuit for converting the DC voltage to a desired voltage level.
Patent
Multiphase zero-volt-switching resonant DC-DC regulator
TL;DR: In this paper, a multiphase zero-volt switching, zero volt switch resonant DC-DC regulator is proposed, which uses the resonant circuit in conjunction with the sensing circuit to provide a substantially constant voltage at a fixed frequency.