https://cris.library.msu.ac.zw//handle/11408/337 Sun, 03 May 2026 04:13:30 GMT 2026-05-03T04:13:30Z https://cris.library.msu.ac.zw//handle/11408/1312 Title: Experimental study of self-powered electronic circuits for piezoelectric energy harvesting: paper presented at a conference held on 14-16 July 2015 at Elephant Hills Resort, Victoria Falls, Zimbabwe Authors: Nechibvute, Action; Chawanda, Albert; Luhanga, Pearson Abstract: The Recently, there has been growing interest in power conditioning interface circuits used to enhance energy harvesting using piezoelectric devices. Among there interface circuits, the Synchronised Switch Harvesting on Inductor Interfaces (SSHI) and Synchronous Electric Charge Extraction (SECE) are the most promising. In this paper we the results of design and performance characterisation of self-powered SSHI and SECE interface circuits. The self-powered SSHI interface demonstrated a record enhancement of close to 300 % while the self-powered SECE interface shoed an enhancement of 70 % more power relative to the standard energy harvesting (SEH) interface. Description: Theme: 1st International Research Conference On Driving Socio-Economic Development Through Value Addition And Sustainable Use Of Resources. Sub Theme: Science and technology and sustainable development- computational sciences, nano-biotechnology, information technology Fri, 01 Jan 2016 00:00:00 GMT https://cris.library.msu.ac.zw//handle/11408/1312 2016-01-01T00:00:00Z Nechibvute, Action Chawanda, Albert Luhanga, Pearson https://cris.library.msu.ac.zw//handle/11408/1311 Title: Energy harvesting for wireless sensor networks: opportunities and challenges: paper presented at a conference held on 14-16 July 2015, Elephant Hills Resort, Victoria Falls, Zimbabwe Authors: Chawanda, Albert; Nechibvute, Action; Luhanga, Pearson Abstract: The spatial distributed nature of wireless sensor networks (WSNs) often requires that batteries power the individual sensor nodes. However, when the battery power is depleted, the sensor node must be manually retrieved and the battery replaced. For long term applications, retrieving thousands of sensor nodes to replace the on-board battery is costly. The battery replacement is not only expensive, but can be a very difficult task in applications such as implanted biomedical devices and cases where sensors are embedded in civil structures. As a way out of the power supply challenge in WSNs, it is critical that alternatives to batteries be aggressively explored. The most attractive alternative which has received great research attention in the last decade is energy harvesting technology. This paper presents the opportunities and design challenges of the latest energy harvesting techniques. Description: THEME: 1st International Research Conference on Driving Socio-Economic Development Through Value Addition and Sustainable use of Resources. Sub Theme: Science and technology and sustainable development- computational sciences, nano-biotechnology, information technology Fri, 01 Jan 2016 00:00:00 GMT https://cris.library.msu.ac.zw//handle/11408/1311 2016-01-01T00:00:00Z Chawanda, Albert Nechibvute, Action Luhanga, Pearson