Design of a Piezoelectric Based Low Power Charging System for Portable Electronic Devices

Energy plays a fundamental role in the economic development of a country. The modern world's energy crisis and environmental concerns have increased the demand for renewable and clean energy resources. As the use of electronic devices grows, there is a need for dependable and eco-friendly charging solutions. Pakistan's reliance on fossil fuels has caused pollution, environmental damage, and green-house gas emissions and it is the need of the hour to utilize renewable energy sources for power generation. This is where the concept of piezoelectric energy harvesting technology comes in, offering a solution to generate electricity from ambient vibrations and mechanical forces. The proposed low power charging system harnesses the power of piezoelectric sensors to convert mechanical energy into electrical energy for charging smartphones. Piezoelectric sensors produce an AC voltage when exposed to mechanical pressure or vibrations. To charge a mobile phone, the alternating current (AC) voltage is first converted to direct current (DC) voltage by utilizing a full wave bridge rectifier. Then, a DC-DC boost converter may be utilized to increase the voltage to the necessary level based on the specific requirements. The regulated voltage is then employed to charge the mobile phone. To ensure a consistent power supply, a backup battery system is also included in the hardware implementation.

Keywords: Piezoelectricity, Renewable Energy, Low-Power Charging System
Tools: MATLAB Simulink, Proteus, Power Electronics
Department: Department of Electrical Engineering

Project Team Members

Name Email
Tooba Manal tooba2019@namal.edu.pk
Bushra Sardar bushra2019@namal.edu.pk

Project Poster

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