A Fully Integrated AC-DC Converter in 1 V CMOS for Electrostatic Vibration Energy Transducer with an Open Circuit Voltage of 10 V
Abstract
:1. Introduction
2. Circuit Design
2.1. System Design
2.2. Power Comversion Efficiency
2.3. Bandgap Reference (BGR)
2.4. Built-In Power-On Reset (POR)
2.5. Decoupling Capacitor
3. Experiments
4. Discussions
4.1. Comparison with Previously Reported Converters
4.2. Limination of the Proposed Converter on VA and RS of ES-EH
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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VDD[V] | FF | TT | SS |
---|---|---|---|
0 °C | 1.0 | 1.0 | 1.0 |
27 °C | 1.0 | 1.0 | 1.0 |
70 °C | 0.90 | 1.0 | 1.0 |
Temp. | VDD |
---|---|
0 °C | 20 mV |
27 °C | mV |
70 °C | 22 mV |
Stanzione [6] | De Pelecijn [10] | Kawauchi [11] | Chen [12] | This Work | |
---|---|---|---|---|---|
Energy source | ES-EH | AC mains | MR-EH | PZ-EH | ES-EH |
Voltage conversion: Up or Down? | Down | Down | Up | Up/Down | Down |
Architecture | FBR and Buck | Cap-div, SC, and FBR | FBR and AC-DC CP | FBR and DC-DC CP | FBR and Shunt |
External components | FBR (4 diodes)/LCR (1L,1C,2R) | None (except for CVDD) | |||
CMOS | 0.25 µm 60 V BCD and 3 V CMOS | 0.35 µm 12 V HV-CMOS | 65 nm 1 V low-Vt CMOS | 0.18 µm CMOS | 65 nm 1 V low-Vt CMOS |
VDD regulation | N. A. | N. A. | No regulation | N. A. | ±5% |
Control power | 500 nW | 50 nW | 18 µW | 4 µW (*1) | 700 nW |
Maximum input peak voltage | 60 V | 168 V | 1 V | N. A. | 10 V (measured), 100 V (potentially) |
Input power | 1 µW–1 mW | 20 µW | 22 µW | N.A. | 1 µW–100 µW |
Output power | 1 µW–1 mW | 20 µW | 4 µW | 0.5–64 µW | 1 µW–100 µW |
Power conversion efficiency | 85% | 81% | 23% | 72% (*1) | 43% |
Die/circuit area | BCD (3 mm2) and CMOS (N.A.) | 9.8 mm2 | 0.11 mm2 | 0.2 mm2 | 0.081 mm2 |
Area [mm2]/Max. output power [mW] | 4.6 | 612.5 | 27.5 | 3.1 | 8.1 (meas.), 0.81 (sim.) (*2) |
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Ishida, Y.; Tanzawa, T. A Fully Integrated AC-DC Converter in 1 V CMOS for Electrostatic Vibration Energy Transducer with an Open Circuit Voltage of 10 V. Electronics 2021, 10, 1185. https://doi.org/10.3390/electronics10101185
Ishida Y, Tanzawa T. A Fully Integrated AC-DC Converter in 1 V CMOS for Electrostatic Vibration Energy Transducer with an Open Circuit Voltage of 10 V. Electronics. 2021; 10(10):1185. https://doi.org/10.3390/electronics10101185
Chicago/Turabian StyleIshida, Yosuke, and Toru Tanzawa. 2021. "A Fully Integrated AC-DC Converter in 1 V CMOS for Electrostatic Vibration Energy Transducer with an Open Circuit Voltage of 10 V" Electronics 10, no. 10: 1185. https://doi.org/10.3390/electronics10101185