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Full-Text Articles in Engineering
Human-Powered Swing Generator, Danny Cai, Timothy Lai, Brandon Wong
Human-Powered Swing Generator, Danny Cai, Timothy Lai, Brandon Wong
Electrical Engineering
Many developing countries lack sufficient resources to provide enough electricity for every family to live with a satisfying level of comfort and convenience. Our project proposes a solution that provides families with an alternative access to electricity using a playground swing. This project addresses the design and construction of the Human-Powered Swing Generator, which converts mechanical energy to electrical energy for charging a battery. The charged battery serves as a source of DC energy for potential DC purposes, such as charging a cell phone.
Bipolar Pulse Width Modulation Inverter, Xin Chen, Ryan Harada
Bipolar Pulse Width Modulation Inverter, Xin Chen, Ryan Harada
Electrical Engineering
The project entails the design of an improved PWM inverter circuit for the inverter lab experiment in the introductory power electronic course. The improved PWM inverter uses bipolar switching with a half bridge control circuit. The inverter utilizes two ICL8038 chip to generate both the control and carrier signals. The improved inverter enhances the system's portability, protection and is easy to understand from the prior design. The improved PWM inverter provides AC variable single phase 65 Hz AC output voltage from DC input signal. The finished product will be used specifically in the EE 410 laboratory course.