Krishnan Ravichandran

TL;DR: A monolithic microwatt-level charge pump energy harvester for smart nodes of Internet of Things (IOT) networks was optimized by the proposed architecture and circuit level innovations and achieved a flattened and improved PCE as high as 89% for ultra-low power operation capability below 50 μW.

TL;DR: In this paper, an apparatus for detecting presence of a user is described, which includes at least one thermal sensor to sense temperature around a define area of a computer system and a user presence detection subsystem coupled to the thermal sensor.

TL;DR: A fully integrated RF energy-harvesting system that can simultaneously deliver the current demanded by external dc loads and store the extra energy in external capacitors, during periods of extra output power, is introduced.

TL;DR: A fully integrated digitally controlled two-phase buck voltage regulator with on-die solenoid inductors with a planar magnetic core is demonstrated in 14-nm tri-gate CMOS for fine-grained power delivery/management domains of high power density in system-on-chips while enabling ultra-thin (z-height) packages.

TL;DR: A digitally-controlled fully integrated voltage regulator (IVR) enables wide autonomous DVFS in a 22 nm graphics execution core by using voltage sensing, tunable replica circuit, or a core warning signal to respond to fast voltage droops to support fast dynamic workload changes without performance degradation.