DC-DC Converter for Scalable On-Board Electric Vehicle Battery Chargers**

村田电力解决方案公司是电力电子元件和电源的主要制造商，总部设在安大略省的马卡姆。然而，由于传统上专注于电信产品和解决方案，它目前的产品线缺乏汽车行业的解决方案。其中一个越来越重要的产品线是插电式电动汽车(PEV)的所谓车载充电器(OBC)。为了弥补上述差距，本研究项目旨在设计、建模、原型和测试一个4kW DC-DC转换器，该转换器将作为OBC的构建块。本项目将开发的DC-DC转换器将具有电流隔离，输入电压为400 V，输出电压从200 V到400 V变化。电流隔离不仅将确保符合适用的安全标准，而且还允许两个或三个DC-DC转换器并联，分别连接到分相输入OBC或三相输入OBC。因此，基于这种模块化方法，预期的DC-DC转换器将用作4 kW、8 kW或12 kW完整OBC的构建块。*该项目将至少在三个方面惠及加拿大：1)它将有助于电动汽车在加拿大的进一步扩散，从而减少汽车行业的碳足迹；2)它将丰富加拿大公司村田的技术诀窍和竞争力，使其成为新兴和快速增长的汽车电子市场的主要参与者；村田的成功反过来将为加拿大人创造就业机会；3)它将丰富瑞尔森大学研究生和实习生的经验和培训。**

Murata Power Solutions is a major manufacturer of power-electronic components and power supplies, headquartered in Markham, Ontario. However, due to its traditional focus on products and solutions for telecommunications, it is missing solutions for automotive industry in its present line of products. One such increasingly important line of product is the so-called on-board charger (OBC) for plug-in electric vehicles (PEV). To bridge the aforementioned gap, this research project aims to design, model, prototype, and test a 4-kW DC-DC converter that will serve as the building block of an OBC. The DC-DC converter to be developed in this project will have galvanic isolation, an input voltage of 400 V, an output voltage varying from 200 V to 400 V. The galvanic isolation will not only ensure compliance to applicable safety standards, but it also allows parallel connection of two or three DC-DC converters, towards a split-phase-input OBC or a three-phase-input OBC, respectively. Based on this modular approach, therefore, the intended DC-DC converter will serve as the building block for a 4-kW, an 8-kW, or a 12-kW complete OBC. ****The project will benefit Canada in at least three ways: 1) it will contribute to further proliferation of electric vehicles in Canada, thus reducing the carbon footprint of the automotive sector; 2) it will enrich the technical knowhow and competitiveness of a Canadian company, Murata, in establishing itself as a major player in the emerging and rapidly growing market of automotive electronics; Murata's success will, in turn, create jobs for Canadians; and 3) it will enrich the experience and training of Ryerson University graduate students and trainees.**