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 Design and implementation of a highly intergrated dual active bridge micro-converter
Tác giả hoặc Nhóm tác giả: Kerachev.L; Trinh. T.H; Lembeye. Y; Crebier. J-C
Nơi đăng: Power Electronics, IEEE Transactions on; Số: Vol 31 issue 8;Từ->đến trang: 5635-5643;Năm: 2016
Lĩnh vực: Kỹ thuật; Loại: Bài báo khoa học; Thể loại: Quốc tế
TÓM TẮT
This paper deals with the design and the implementation of an isolated and highly integrated low voltage, low power micro-converter. A dual active bridge topology is considered as a good candidate for reducing the number of passive elements. The design of a “power die” integrating power inverter legs and their driver circuits is carried out in order to benefit from the high level of integration and to reduce the amount of active components and the volume of the converter. Thus, a micro-converter is built for 10W power supply (5V/2A) and is operating at 1MHz switching frequency. The measured efficiency of the converter is 88% for 6.5W transferred power and 86% for 8.5W transferred power without taking into account its control unit. The converter is operating in natural convection and no cooling system is implemented. Therefore, a power density of 9.9kW/L is achieved which is beyond the stateof- the-art of the conventional isolated converters whose power densities are around 1-2kW/L at the same power level.
ABSTRACT
This paper deals with the design and the implementation of an isolated and highly integrated low voltage, low power micro-converter. A dual active bridge topology is considered as a good candidate for reducing the number of passive elements. The design of a “power die” integrating power inverter legs and their driver circuits is carried out in order to benefit from the high level of integration and to reduce the amount of active components and the volume of the converter. Thus, a micro-converter is built for 10W power supply (5V/2A) and is operating at 1MHz switching frequency. The measured efficiency of the converter is 88% for 6.5W transferred power and 86% for 8.5W transferred power without taking into account its control unit. The converter is operating in natural convection and no cooling system is implemented. Therefore, a power density of 9.9kW/L is achieved which is beyond the stateof- the-art of the conventional isolated converters whose power densities are around 1-2kW/L at the same power level.walgreens prints coupons rx coupons printable free printable coupons
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