Preprint Article Version 1 This version is not peer-reviewed

Resonant Rectifier ICs for Piezoelectric Energy Harvesting Using Low-voltage Drop Diode Equivalents

Version 1 : Received: 20 February 2017 / Approved: 20 February 2017 / Online: 20 February 2017 (18:23:13 CET)

A peer-reviewed article of this Preprint also exists.

Din, A.U.; Chandrathna, S.C.; Lee, J.-W. Resonant Rectifier ICs for Piezoelectric Energy Harvesting Using Low-Voltage Drop Diode Equivalents. Sensors 2017, 17, 901. Din, A.U.; Chandrathna, S.C.; Lee, J.-W. Resonant Rectifier ICs for Piezoelectric Energy Harvesting Using Low-Voltage Drop Diode Equivalents. Sensors 2017, 17, 901.

Journal reference: Sensors 2017, 17, 901
DOI: 10.3390/s17040901

Abstract

Herein, we present the design technique of a resonant rectifier for piezoelectric (PE) energy harvesting. We propose two diode equivalents to reduce the voltage drop in the rectifier operation, a minuscule-drop-diode equivalent (MDDE) and a low-drop-diode equivalent (LDDE). The diode equivalents are embedded in resonant rectifier integrated circuits (ICs), which use symmetric bias-flip to reduce the power wasted for charging and discharging the internal capacitance of a PE transducer. The self-startup function is supported by synchronously generating control pulses for the bias-flip from the PE transducer. Two resonant rectifier ICs, using both MDDE and LDDE, are fabricated in a 0.18 μm CMOS process and their performances are characterized under external and self-power conditions. Under the external-power condition, the rectifier using LDDE delivers an output power POUT of 564 μW and a rectifier output voltage VRECT of 3.36 V with a power conversion efficiency (PCE) of 90.1%. Under self-power conditions, the rectifier using MDDE delivers a POUT of 288 μW and a VRECT of 2.4 V with a corresponding PCE of 74.6%. The result shows that the power extraction capability of the proposed rectifier is 5.9 and 3.0 times higher than that of a conventional full-bridge rectifier.

Subject Areas

AC-DC converters; energy harvesting; piezoelectric; rectifier

Readers' Comments and Ratings (3)

Importance: How significant is the paper to the field?
Outstanding/highlight paper
0%
Significant contribution
50%
Incremental contribution
50%
No contribution
0%
Soundness of evidence/arguments presented:
Conclusions well supported
50%
Most conclusions supported (minor revision needed)
50%
Incomplete evidence (major revision needed)
0%
Hypothesis, unsupported conclusions, or proof-of-principle
0%
Comment 1
Received: 21 February 2017
Commenter: Nuzhat ul Ain
The commenter has declared there is no conflict of interests.
Comment: Good idea.
+ Respond to this comment
Comment 2
Received: 21 February 2017
Commenter: Haffi
The commenter has declared there is no conflict of interests.
Comment: Incremental contribution
Conclusions well supported
+ Respond to this comment
Comment 3
Received: 26 February 2017
Commenter: Davaid Raonnie
The commenter has declared there is no conflict of interests.
Comment: Well explained.
+ Respond to this comment
Leave a public comment
Send a private comment to the author(s)
Rate this article
Views 0
Downloads 0
Comments 3
Metrics 0
Leave a public comment

×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.