This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignee: Oregon State University. Active years: 2021-2022.
Company Filing History:
Years Active: 2021-2022
Title: Soumya Bose: Innovator in Low-Voltage Energy Solutions
Introduction
Soumya Bose is a prominent inventor based in Corvallis, OR (US). She has made significant contributions to the field of low-voltage energy harvesting technologies. With a total of 2 patents to her name, her work focuses on enhancing the efficiency of energy conversion systems.
Latest Patents
One of her latest patents is an integrated circuit for low-voltage thermoelectric energy harvesting with self-start capabilities. This innovative integrated circuit (IC) lowers the start-up voltage to approximately 50 mV, making it compatible for initiating a DC-DC converter from a thermoelectric generator (TEG), even with minimal temperature gradients. The IC enhances the end-to-end efficiency of the energy harvester by improving the power efficiency of the DC-DC converter while ensuring maximum power transfer from the TEG at low voltages. It employs a low voltage integrated charge pump that can boost sub-100 mV input voltage. Additionally, a startup clock is generated by a ring-oscillator that begins operation with low supply, allowing for a single inductor to be utilized for both the DC-DC converter and its startup. The IC can be configured between the TEG and any downstream sensor or communication circuits to provide a sufficient voltage for powering downstream circuits from a low-voltage TEG energy source.
Another notable patent is for ultra-low voltage circuits, which includes an ultra-low voltage inverter comprising a first inverter, a second inverter, and a third inverter. The first inverter receives input from a delay cell and generates output for a subsequent delay cell. The second and third inverters are coupled to the first inverter, with their outputs connected to the source terminals of a p-type transistor and an n-type transistor of the first inverter, respectively. This ultra-low voltage inverter forms a delay cell, serving as a fundamental building block of an ultra-low voltage ring-oscillator. A NAND gate is constructed using three inverters, where the outputs of two inverters are connected to the p-type transistors of the NAND gate, while the output of the third inverter is linked to an n-type transistor of the NAND gate.
Career Highlights
Soumya Bose is currently affiliated with Oregon State University, where she continues to advance her research in energy harvesting technologies. Her innovative work has garnered attention in the field, contributing to