A low-power RF integrated circuit for implantable sensors

Adeeb, M.A.; Nguyen, Hung D.; Islam, Syed K.; Zhang, Mo

doi:10.1007/s10470-006-6221-2

Cited by 6 publications

(2 citation statements)

References 11 publications

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“…Using techniques such as synchronous switch harvesting on inductor and step-down DC-DC converter to increase power transfer compared to standard circuits [48][49][50][51][52][53][54][55][56].…”

Section: ) Optimization Of Power Harvesting Circuitmentioning

confidence: 99%

Improving Power Density Of A Class Of Piezoelectic Power Harvesters Through Proof Mass Optimization

Li¹

2021

Preprint

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This thesis presents a method to optimize the proof mass of the cantilever piezoelectric power harvester. With this novel proof mass, a lower fundamental frequency and a higher power density (output power per unit volume) were achieved. Prototypes of 0.242 cm³ in volume were fabricated and tested and a power density of 1446 μW/cm³ was achieved for sinusoidal excitation of 0.75 g. It was experimentally shown that the new power harvester lowered the fundamental frequency by 26% and increased the power density by 68% in comparison with the conventional harvesters. When tested on a shoe, the new power harvester generated an average power of 48.4 μW at 3.0 mph walking speed on a treadmill.

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Section: ) Optimization Of Power Harvesting Circuitmentioning

confidence: 99%

Improving Power Density Of A Class Of Piezoelectic Power Harvesters Through Proof Mass Optimization

Li¹

2021

Preprint

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“…Along with the rapid development of VLSI technology, the semiconductor device of the high quality implantable interface has been applied into the medical treatment practice. Though many variety of the receivers for telemeter biological signals have been reported [3,[6][7][8][9], these implantable interfaces are not well suited for implantable brain neural chip, because we must consider the trade-off about the system reliability, the transforming speed and the power dissipation simultaneously.…”

Section: Introductionmentioning

confidence: 99%

A compensability RF CMOS mixed-signal interface for implantable system

2009

Analog Integr Circ Sig Process

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The implantable microsystem requires the hybrid circuit technology for a brain-machine interface. The paper described a compensability mixed-signal implantable receiver including an analog front-end and a digital processing circuit. The analog circuit consists of mainly an amplifier, an amplitude shift keying (ASK) demodulator, a clock extraction and a power recovery. In this paper, the amplifier and the ASK demodulator are described and provided without the capacitor and the resistor, fully integrated low-power circuit. The processing circuit is designed with the digital technology, so that implementing the correct synchronous signal. The carrier frequency of the circuit is applied in the 10 MHz range; the data rates up to 1 M bit/s are supported, suitable for complex implants such as the brain neural stimulating and so on. The compensability low-power and the high-performance implantable interface using a CMOS technology has been designed, fabricated and verified. All of circuits were implemented in a standard 0.18-lm CMOS process.

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Emerging Design Strategies Toward Developing Next‐Generation Implantable Batteries and Supercapacitors

Peng

Wang

et al. 2023

Adv Funct Materials

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In recent years, the development of implantable bioelectronics has garnered significant attention. With the continuous advancement of IoT and information technology, implantable bioelectronics can be utilized more effectively for health monitoring to enhance treatment outcomes, reduce healthcare costs, and improve quality of life. Implantable energy storage devices have been widely studied as critical components for energy supply. Conventional power sources are bulky, inflexible, and potentially contain materials that are dangerous to the body. Meanwhile, human tissues are soft, flexible, dynamic, and closed, which puts new requirements on energy storage devices to improve the safety, stability, and matching of implantable batteries or supercapacitors. Herein, recent advances in state‐of‐the‐art nonconventional power options for implantable electronics, specifically biocompatible, miniaturized, stretchable/deformable, biodegradable/bioresorbable, edible, and injectable energy storage devices, are reviewed in this paper. The material strategy and architectural design of the next‐generation implantable energy storage device are discussed, including the selection principle of electrolytes, the all‐in‐one structure design strategy, and the way to realize self‐charging. Finally, the challenges and prospects of emerging design strategies toward developing next‐generation implantable batteries and supercapacitors for the future are put forward.

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A low-power RF integrated circuit for implantable sensors

Cited by 6 publications

References 11 publications

Improving Power Density Of A Class Of Piezoelectic Power Harvesters Through Proof Mass Optimization

Improving Power Density Of A Class Of Piezoelectic Power Harvesters Through Proof Mass Optimization

A compensability RF CMOS mixed-signal interface for implantable system

Emerging Design Strategies Toward Developing Next‐Generation Implantable Batteries and Supercapacitors

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