Solar Charge Controller Noah Harder Project Mentor(s): Lad Holden
This project presents the design and implementation of a solar charge controller using a microcontroller and dual PWM-controlled buck converter circuits. The system is designed to efficiently charge a battery using regulated power from a photovoltaic (PV) panel to charge a battery while preventing overcharging and limiting energy loss. The microcontroller generates pulse-width modulation (PWM) signals to control two buck converters, enabling precise voltage and current regulation under varying solar conditions. The controller continuously monitors system parameters to dynamically adjust the duty cycle of the PWM signals to optimize energy transfer and maintain safe charging conditions. The dual buck converter configuration allows for more precise voltage output to decrease battery wear compared to single-stage designs. Experimental testing demonstrates stable operation, high conversion efficiency, and reliable battery protection. This project highlights the effectiveness of embedded control systems in renewable energy systems and provides a scalable solution for solar energy systems. Presentation Type: Poster Presentation (May 21, 9:30am–3:00pm) Keywords : Green Energy, Solar SOURCE Form ID: 108 There is a growing interest in the tabletop role playing game (TTRPG) Dungeons and Dragons (D&D) with limited research on its players' psychology. This study examined the correlation between Big Five personality traits and gaming motivations in TTRPG competitors. The basis of this study comes from the de Hesselle et al. (2021) study finding correlations between video game players' personalities and their gaming motivations. Participants completed the Big Five personality test (Goldburg, 1992) and the Motivations of Online Gamers Questionnaire with a revised introduction paragraph to better suit TTRPG gamers (Demetrovics et al., 2011). As hypothesized, players scored high in Agreeableness, although they scored about average in Extraversion. Extraversion was correlated with the Social motivation. Also as hypothesized, the Escape motivation indicating that the participant plays to escape reality was correlated with Neuroticism. This study will provide insights into the world of TTRPG members, learning more about why they play and potentially help find why geek culture (McCain et al., 2015 & Finister et al., 2021) is rising and challenging previous stereotypes. Presentation Type: Poster Presentation (May 21, 9:30am–3:00pm) Keywords: Tabletop Role Playing Games (TTRPG), Big Five Personality, Gaming motivations, Geek Culture SOURCE Form ID: 23 Dice & Dispositions: Personality Predictors of Motivation in Role Playing Games Kay Martin Project Mentor(s): Meaghan Nolte, PhD; Joshua Buchanan, PhD
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