{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/155908"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/155908","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Capacitor Ladder Circuitry for Improving Electrical Energy Transfer Efficiency to Electromechanical Actuators","abstract":"This paper focuses on the general process of taking electrical energy from a power source to a mechanical system to do mechanical work, specifically focusing on a ladder circuit to deliver energy to a capacitive-type actuator that is modeled as a mass-spring-damper (MSD) system. The whole chain of power conversion involves an electrical transfer efficiency and a mechanical energy conversion efficiency. The first chapter walks through the motivation and failure to build a dielectric elastomeric as a MSD test system. The second chapter details the electrical problem defining what a capacitive-type actuator is, what the electromechanical actuation process entails from an abstract perspective, and an efficiency metric. The third chapter reviews how inductors offer a solution and how at certain size scales they lose efficacy. The fourth chapter introduces the ladder circuit as a solution to the electrical energy transfer. Chapters 5 and 6 detail electrical experiments and modeling of the circuit to characterize the efficiency of the electromechanical process. Lastly, chapter 7 concludes with discussions of applicability of the ladder circuit solution.","abstract_html":"This paper focuses on the general process of taking electrical energy from a power source to a mechanical system to do mechanical work, specifically focusing on a ladder circuit to deliver energy to a capacitive-type actuator that is modeled as a mass-spring-damper (MSD) system. The whole chain of power conversion involves an electrical transfer efficiency and a mechanical energy conversion efficiency. The first chapter walks through the motivation and failure to build a dielectric elastomeric as a MSD test system. The second chapter details the electrical problem defining what a capacitive-type actuator is, what the electromechanical actuation process entails from an abstract perspective, and an efficiency metric. The third chapter reviews how inductors offer a solution and how at certain size scales they lose efficacy. The fourth chapter introduces the ladder circuit as a solution to the electrical energy transfer. Chapters 5 and 6 detail electrical experiments and modeling of the circuit to characterize the efficiency of the electromechanical process. Lastly, chapter 7 concludes with discussions of applicability of the ladder circuit solution.","abstract_has_math":false,"creators":["Murphy, Trevor"],"institution":"Massachusetts Institute of Technology","degree_name":"Master","degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. Department of Mechanical Engineering","school":null,"contributors":[],"advisors":["Brisson, John G."],"committee_chairs":[],"committee_members":[],"year":2024,"date_issued":"2024-05","date_published":"2024-05","updated_at":"2026-07-22T22:21:52Z","subjects":[],"languages":[],"rights":["In Copyright - Educational Use Permitted","Copyright retained by author(s)"],"rights_urls":["https://rightsstatements.org/page/InC-EDU/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/1721.1/155908","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Brisson, John G."]},{"key":"dc:contributor.department","label":"Department","values":["Massachusetts Institute of Technology. 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The whole chain of power conversion involves an electrical transfer efficiency and a mechanical energy conversion efficiency. The first chapter walks through the motivation and failure to build a dielectric elastomeric as a MSD test system. The second chapter details the electrical problem defining what a capacitive-type actuator is, what the electromechanical actuation process entails from an abstract perspective, and an efficiency metric. The third chapter reviews how inductors offer a solution and how at certain size scales they lose efficacy. The fourth chapter introduces the ladder circuit as a solution to the electrical energy transfer. Chapters 5 and 6 detail electrical experiments and modeling of the circuit to characterize the efficiency of the electromechanical process. Lastly, chapter 7 concludes with discussions of applicability of the ladder circuit solution."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["S.M."]},{"key":"dc:title","label":"Title","values":["Capacitor Ladder Circuitry for Improving Electrical Energy Transfer Efficiency to Electromechanical Actuators"]}]}],"canonical_facts":{"dc:contributor.advisor":["Brisson, John G."],"dc:contributor.department":["Massachusetts Institute of Technology. Department of Mechanical Engineering"],"dc:creator":["Murphy, Trevor"],"dc:date.accessioned":["2024-08-01T19:06:46Z"],"dc:date.available":["2024-08-01T19:06:46Z"],"dc:date.issued":["2024-05"],"dc:description.abstract":["This paper focuses on the general process of taking electrical energy from a power source to a mechanical system to do mechanical work, specifically focusing on a ladder circuit to deliver energy to a capacitive-type actuator that is modeled as a mass-spring-damper (MSD) system. The whole chain of power conversion involves an electrical transfer efficiency and a mechanical energy conversion efficiency. The first chapter walks through the motivation and failure to build a dielectric elastomeric as a MSD test system. The second chapter details the electrical problem defining what a capacitive-type actuator is, what the electromechanical actuation process entails from an abstract perspective, and an efficiency metric. The third chapter reviews how inductors offer a solution and how at certain size scales they lose efficacy. The fourth chapter introduces the ladder circuit as a solution to the electrical energy transfer. Chapters 5 and 6 detail electrical experiments and modeling of the circuit to characterize the efficiency of the electromechanical process. Lastly, chapter 7 concludes with discussions of applicability of the ladder circuit solution."],"dc:description.degree":["S.M."],"dc:identifier.uri":["https://hdl.handle.net/1721.1/155908"],"dc:publisher":["Massachusetts Institute of Technology"],"dc:rights":["In Copyright - Educational Use Permitted","Copyright retained by author(s)"],"dc:rights.uri":["https://rightsstatements.org/page/InC-EDU/1.0/"],"dc:title":["Capacitor Ladder Circuitry for Improving Electrical Energy Transfer Efficiency to Electromechanical Actuators"],"dc:type":["Thesis"],"thesis:degree_name":["Master","Master of Science in Mechanical Engineering"]},"updated_at":"2026-07-22T22:21:52Z"}