A Linear-Power-Regulated Wireless Power Transfer Method for Decreasing the Heat Dissipation of Fully Implantable Microsystems
Abstract
:1. Introduction
2. Materials and Methods
2.1. Parameter Analysis of the Wireless Power Transfer System
2.2. An LDO-Based Linear-Power-Regulated Wireless Power Transfer Method
2.3. A Miniaturized Linear-Power-Regulated Wireless Power Transfer System
3. Results
3.1. Measurement of Linear-Power-Regulated Wireless Power Transfer System
3.2. Measurement and Analysis of Wireless Power Transfer Efficiency
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
Abbreviations
FCC | Federal Communications Commission |
SAR | Specific absorption rate |
BCI | Brain-computer interfaces |
WPT | Wireless power transfer |
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Coil | Turns | Diameter (mm) | Inductance (nH) | Resistance (m) | Lm (nH) |
---|---|---|---|---|---|
transmitter | 9 | 10 | 1500 | 160 | 400 (d = 5 mm) |
receiver | 5 | 10 | 800 | 100 |
Type | LDO | DC-DC | |||
---|---|---|---|---|---|
Reference | [38] | [39] | [40] | [28] | [27] |
Year | 2022 | 2021 | 2015 | 2015 | 2020 |
Chip Area (mm) | 0.128 | 0.49 | 0.04 | 1.8 | 36 |
CMOS Process (m) | 0.18 | 0.18 | 0.18 | 0.18 | 0.35 |
Input voltage (V) | 1.2–1.8 | 3.3–3.6 | 1.8 | 6–60 | 0.3–0.4 |
Output voltage (V) | 1 | 0.8–3.2 | 1.0–2.2 | 1.65, 5 | 1.6–2 |
Efficiency | 83% (max) | 96.5% (max) | 30–75% | 65% (max) | 40–65% |
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Wang, H.; Zhu, C.; Jin, W.; Tang, J.; Wu, Z.; Chen, K.; Hong, H. A Linear-Power-Regulated Wireless Power Transfer Method for Decreasing the Heat Dissipation of Fully Implantable Microsystems. Sensors 2022, 22, 8765. https://doi.org/10.3390/s22228765
Wang H, Zhu C, Jin W, Tang J, Wu Z, Chen K, Hong H. A Linear-Power-Regulated Wireless Power Transfer Method for Decreasing the Heat Dissipation of Fully Implantable Microsystems. Sensors. 2022; 22(22):8765. https://doi.org/10.3390/s22228765
Chicago/Turabian StyleWang, Haochuan, Chenglong Zhu, Wenkai Jin, Junjie Tang, Zhanxiong Wu, Keming Chen, and Hui Hong. 2022. "A Linear-Power-Regulated Wireless Power Transfer Method for Decreasing the Heat Dissipation of Fully Implantable Microsystems" Sensors 22, no. 22: 8765. https://doi.org/10.3390/s22228765