—This paper presents an ultra-low power batteryless energy harvesting body sensor node (BSN) SoC fabricated in a commercial 130 nm CMOS technology capable of acquiring, processing, and transmitting electrocardiogram (ECG), elec-tromyogram (EMG), and electroencephalogram (EEG) data. This SoC utilizes recent advances in energy harvesting, dynamic power… (More)
1 • Wireless body area sensor nodes (BASN) enable inexpensive continuous monitoring of patients • Battery replacement for body-worn devices may not be feasible or desirable
—A boost converter for thermoelectric energy harvesting in 130 nm CMOS achieves energy harvesting from a 10 mV input, which allows wearable body sensors to continue operation with low thermal gradients. The design uses a peak inductor current control scheme and duty cycled, offset compensated com-parators to maintain high efficiency across a broad range of… (More)
A 1 trillion node internet of things (IoT) will require sensing platforms that support numerous applications using power harvesting to avoid the cost and scalability challenge of battery replacement in such large numbers. Previous SoCs achieve good integration and even energy harvesting , but they limit supported applications, need higher… (More)
This paper presents a single inductor energy harvesting and power management (EHM) unit for ultra-low power (ULP) systems. The proposed circuit harvests energy from solar cells from 0.38V input voltage (Vin) and provides 4 output voltages-storage at 5V and VDDs at 3.3V, 1.5V and 1.2V. A peak inductor current control scheme enables high efficiency operation… (More)
Recent advances in ultra-low power chip design techniques, many originally targeting wireless sensor networks, will enable a new generation of body-worn devices for health monitoring. We utilize the state-of-the-art in low power RF transmitters, low voltage boost circuits, subthreshold processing, biosignal front-ends, dynamic power management, and energy… (More)
This paper presents a charge-pump based low swing interconnect receiver circuit. The interconnect circuit is single ended and supports swings of 300mV or lower. A charge pump front end at the receiver boosts the arriving signal before restoring it to the full logic level, improving the performance of the interconnect. For a 10mm long interconnect wire in a… (More)
— This paper presents a model of a DC-DC converter that is used to study power management techniques like DVFS, PDVS, etc. It accurately predicts the behavior of DC-DC converters of varying topologies across output voltage and current load and predicts the relative benifits of different power management options.