Thông tin chung

  English

  Đề tài NC khoa học
  Bài báo, báo cáo khoa học
  Hướng dẫn Sau đại học
  Sách và giáo trình
  Các học phần và môn giảng dạy
  Giải thưởng khoa học, Phát minh, sáng chế
  Khen thưởng
  Thông tin khác

  Tài liệu tham khảo

  Hiệu chỉnh

 
Số người truy cập: 106,050,888

 An Integration of Buck Converter Topology for High Efficiency Used in LED Driver Circuit
abortion stories gone wrong information about abortions teenage abortion facts
Tác giả hoặc Nhóm tác giả: Trinh Trung Hieu; Nguyen Huu Hieu
Nơi đăng: 2015 IEEE 2nd International Future Energy Electronics Conference (IFEEC), Taipei, Taiwan, November 2015; Số: 978-1-4799-7655-3;Từ->đến trang: 1-6;Năm: 2015
Lĩnh vực: Kỹ thuật; Loại: Bài báo khoa học; Thể loại: Quốc tế
TÓM TẮT
This paper presents an interleaved integrated buck converter for a high efficiency LED driver circuit. This integrated circuit can drive a high-power LED (1W - 3W). Assembled in matrices, it is able to drive multiple high-power LEDs. The operation principle, the power loss levels of buck converter, the design approach, technology of chip and the choice of passive components are analyzed and discused in detail. The prototype of an integrated buck converter is designed and tested for the input voltage 3.3V, current load from 0.3A to 1A at a switching frequency of 500kHz. Experimental results of four buck converters connected in parallel to drive eight 1W Lumileds show demonstrative and satisfactory results with the highest efficiency of 97.2% at the nominal load
ABSTRACT
This paper presents an interleaved integrated buck converter for a high efficiency LED driver circuit. This integrated circuit can drive a high-power LED (1W - 3W). Assembled in matrices, it is able to drive multiple high-power LEDs. The operation principle, the power loss levels of buck converter, the design approach, technology of chip and the choice of passive components are analyzed and discused in detail. The prototype of an integrated buck converter is designed and tested for the input voltage 3.3V, current load from 0.3A to 1A at a switching frequency of 500kHz. Experimental results of four buck converters connected in parallel to drive eight 1W Lumileds show demonstrative and satisfactory results with the highest efficiency of 97.2% at the nominal load
walgreens prints coupons prescription coupon card free printable coupons
© Đại học Đà Nẵng
 
 
Địa chỉ: 41 Lê Duẩn Thành phố Đà Nẵng
Điện thoại: (84) 0236 3822 041 ; Email: dhdn@ac.udn.vn