fieldid E-Thesis & Research สถาบันเทคโนโลยีไทย-ญี่ปุ่น
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บทคัดย่อ
THE DESIGN AND IMPLEMENTATION OF AUTOMOTIVE SWITCHING DC -DC POWER CONVERTER WITH NONLINEAR DYNAMICS ANALYSIS AND STABILITY CONTROL : DC-DC power converters are important in portable electronic devices such as cellular phones and laptop computers, which are supplied with power from batteries primarily. Such electronic devices often contain several sub-circuits with different voltage level requirements which are different from that supplied by the battery or external supplies and can be either higher or lower than the supply voltage. Additionally, the battery voltage declines as its stored power is drained. Switched DC- DC converters offer an operation to increase or decrease the voltage levels without multiple batteries in order to accomplish the DC operation. The operating DC voltage of most electronic devices in electric cars is commonly lower than the power supply resources. The Buck DC-DC Converter is a suitable solution for this system. However, the output voltage generally contains a small ripple, which is an AC variation over the DC output. As a result, the accuracy of Buck DC-DC Converter may not high as required in the specification. Therefore, the Buck DC-DC converter to be studied in this thesis will focus on the reduction of ripple voltages in order to sustain the system stability with low-cost implementation. This thesis therefore aims to study power conversion theories in automotive electric systems, and also study circuit topologies and operations of automotive DC-DC buck converters. In addition, low-cost high-stability automotive 42V-14V DC-DC buck converters are also designed and implemen
ผู้แต่ง
Nuttawat Suppipat
ประเภทสิ่งพิมพ์
วิทยานิพนธ์ (MIT) 2012
ปีที่พิมพ์
1
เลขหน้า
73 p
หัวเรื่อง
Engineering Technology--Thesis
หัวเรื่อง
Thai-Nichi Institute of Technology.Engineering Technology--Thesis
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