dc.contributor.author | Chew, Zheng Jun | |
dc.contributor.author | Zhu, Meiling | |
dc.date.accessioned | 2016-02-16T10:07:55Z | |
dc.date.issued | 2015-11-01 | |
dc.description.abstract | A maximum power point tracking (MPPT) scheme by tracking the open-circuit voltage from a piezoelectric energy harvester using a differentiator is presented in this paper. The MPPT controller is implemented by using a low-power analogue differentiator and comparators without the need of a sensing circuitry and a power hungry controller. This proposed MPPT circuit is used to control a buck converter which serves as a power management module in conjunction with a full-wave bridge diode rectifier. Performance of this MPPT control scheme is verified by using the prototyped circuit to track the maximum power point of a macro-fiber composite (MFC) as the piezoelectric energy harvester. The MFC was bonded on a composite material and the whole specimen was subjected to various strain levels at frequency from 10 to 100 Hz. Experimental results showed that the implemented full analogue MPPT controller has a tracking efficiency between 81% and 98.66% independent of the load, and consumes an average power of 3.187 μW at 3 V during operation. | en_GB |
dc.description.sponsorship | Innovate UK | en_GB |
dc.description.sponsorship | Engineering and Physical Sciences Research Council (EPSRC) | en_GB |
dc.identifier.citation | Vol. 660, article 012022 | en_GB |
dc.identifier.doi | 10.1088/1742-6596/660/1/012022 | |
dc.identifier.uri | http://hdl.handle.net/10871/19883 | |
dc.language.iso | en | en_GB |
dc.publisher | IOP Science | en_GB |
dc.rights | Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | en_GB |
dc.title | Microwatt power consumption maximum power point tracking circuit using an analogue differentiator for piezoelectric energy harvesting | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2016-02-16T10:07:55Z | |
dc.identifier.issn | 1742-6588 | |
dc.description | The 15th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2015) 1–4 December 2015, Boston, USA | |
dc.identifier.eissn | 1742-6596 | |
dc.identifier.journal | Journal of Physics: Conference Series | |