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Georgia Tech

1. Lee, Byunghun. A robust wirelessly-powered recording and stimulation system for a freely-moving animal subject.

Degree: PhD, Electrical and Computer Engineering, 2017, Georgia Tech

A robust wirelessly-powered recording and stimulation system for a freely-moving animal subject is proposed. The proposed research is composed of two parts: 1) several wireless power transfer (WPT) systems for a transmitter (Tx), 2) a wireless recording/stimulating system in a receiver (Rx). In the WPT systems, a triple-loop WPT system and a new Q-modulation method are demonstrated which can maintain the high PTE in wirelessly powered applications that operate in dynamic environments. A new architecture for a three-phase time-multiplexed power Tx is proposed, which has ability to wirelessly power a large number of distributed receivers with arbitrary angle and spatial misalignments across a large plane. The wirelessly-powered homecage system, called the EnerCage-HC, that is equipped with a multi-coil WPT, an optical behavioral tracking, and a graphic user interface (GUI), is proposed for long-term behavioral experiments with implantable medical devices (IMDs). A completed inductively-powered wireless implantable neural recording and stimulation system, called WINeRS-8 is presented, which equips 32-channel adaptive averaging low noise analog front-end (AFE) for central and peripheral nervous system. The transmitted RF signal from WINeRS-8 is detected by two individual software-defined ratio (SDR) receiver (Rx) to increase the directivity and coverage of the received RF signal over the experimental space. In two in vivo experiments, five types of WINeRS-8 headstage and implantable device are designed to demonstrate the recording/stimulating functionalities for the central/peripheral nervous system in the EnerCage-HC system. Advisors/Committee Members: Ghovanloo, Maysam (advisor), Cressler, John D. (committee member), Wang, Hua (committee member), Inan, Omer T. (committee member), Choi, Yoonsu (committee member).

Subjects/Keywords: Wireless power transfer system; RFID; Load modulation; Distributed implants; Low noise amplifier; Current stimulation; Analog front end; Central nerve recording; Peripheral nerve interface

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APA (6th Edition):

Lee, B. (2017). A robust wirelessly-powered recording and stimulation system for a freely-moving animal subject. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/59797

Chicago Manual of Style (16th Edition):

Lee, Byunghun. “A robust wirelessly-powered recording and stimulation system for a freely-moving animal subject.” 2017. Doctoral Dissertation, Georgia Tech. Accessed October 20, 2019. http://hdl.handle.net/1853/59797.

MLA Handbook (7th Edition):

Lee, Byunghun. “A robust wirelessly-powered recording and stimulation system for a freely-moving animal subject.” 2017. Web. 20 Oct 2019.

Vancouver:

Lee B. A robust wirelessly-powered recording and stimulation system for a freely-moving animal subject. [Internet] [Doctoral dissertation]. Georgia Tech; 2017. [cited 2019 Oct 20]. Available from: http://hdl.handle.net/1853/59797.

Council of Science Editors:

Lee B. A robust wirelessly-powered recording and stimulation system for a freely-moving animal subject. [Doctoral Dissertation]. Georgia Tech; 2017. Available from: http://hdl.handle.net/1853/59797

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