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Electrostatic energy harvester

Patent ·
OSTI ID:1925081
An electrostatic energy harvester broadly comprises an electrical energy storage component, an electrical energy transfer stage, first and second variable capacitors, and a switching control module. The electrical energy transfer stage includes diode-connected transistors and dictates electrical energy transfer between the electrical energy storage component and the variable capacitors. The switching control module timely switches between the first and second variable capacitors according to a state machine. Subsequent electrical energy investments from the electrical energy storage component are less than an initial electrical energy investment due to remnant electrical energy remaining at the previously active one of the first and second variable capacitors from previous electrical energy harvesting.
Research Organization:
Kansas City Plant (KCP), Kansas City, MO (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
DOE Contract Number:
NA0002839
Assignee:
Honeywell Federal Manufacturing & Technologies, LLC (Kansas City, MO)
Patent Number(s):
11,437,931
Application Number:
16/889,882
OSTI ID:
1925081
Country of Publication:
United States
Language:
English

References (19)

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Electrostatic vibrational energy harvesting using a variation of Bennet's doubler conference August 2010
Vibration-to-electric energy conversion
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journal February 2001
Self-Tuning Electrostatic Energy-Harvester IC journal October 2010
Electrostatic energy harvester based on multiple variable capacitors conference December 2016
Analysis of Electronic Electrostatic Generators journal April 2019
Energy budget and high-gain strategies for voltage-constrained electrostatic harvesters conference May 2009
An Experimental Demonstration of GaN CMOS Technology journal March 2016
Electrostatic Energy-Harvesting and Battery-Charging CMOS System Prototype journal September 2009
Model and prototype of a green electrostatic harvester of vibration energy conference August 2014
Experimental evaluation of parameters of the capacitive MEMS converters conference October 2009
A Low Forward Bias Active Diode Circuit for Electrostatic Energy Harvesters conference May 2018
Regenerative electrostatic energy harvester with improved output power range conference August 2013
Biased capacitive divider electrostatic generators for energy harvesting conference February 2017
Application of GaN power transistors in a 2.5 MHz LLC DC/DC converter for compact and efficient power conversion conference September 2016
Energy harvesting using symmetrical electrostatic generators conference May 2016
Unipolar symmetrical variable-capacitance generators for energy harvesting conference August 2017
Electrostatic energy harvesting using doublers of electricity conference August 2011
Electrostatic Energy Harvester and Li-Ion Charger Circuit for Micro-Scale Applications conference August 2006

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