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The development of multi level buck converter / Muhammad Farhan Kamarul Zaman

By:

Muhammad Farhan Kamarul Zaman

Material type: Text

TextPublication details: Kuantan, Pahang : UMP, 2012Description: xvi, 59 p. : ill. ; 30 cm. + 1 CD-ROMISBN:

THE0007021(Local)

Subject(s):

Dissertation note: Project paper (Bachelor of Electrical Engineering (Power System)) -- Universiti Malaysia Pahang - 2012 Abstract: A DC/DC converter generally needs to work under high switching frequency when used as an adjustable power supply to reduce the size of magnetic elements such as inductors, transformers and capacitors, but with the rising of the switch frequency, the switch losses will increase and the efficiency will reduce. To solve these problems, research is actively being done on a soft switching method that can be applied under high frequency and on a PWM converter that can be applied under low frequency such as a multi level topology. In this project, a DC-DC conversion method for reducing the ripple of output voltage is proposed. In this proposed converter, buck converters are connected in series to generate the output voltage. By using this method, the ripple of output voltage can be reducing compared to a conventional buck converter. Particularly when output voltage is low, the number of acting switching elements is less and the result of ripple reduction is more obvious, it is expected that the converter proposed in this project could be very useful in the case of wide-range output voltage.

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Holdings ( 2 )
Title notes ( 3 )

Holdings
Item type	Current library	Call number	Copy number	Status	Date due	Barcode
Final Year Report	UMPLIB PEKAN	TK7881.15 .F37 2012 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000071328
Final Year Report	UMPLIB PEKAN	CD 6749 \| TK7881.15 .F37 2012 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000071329

Project paper (Bachelor of Electrical Engineering (Power System)) -- Universiti Malaysia Pahang - 2012

Bibliography: p. 38

A DC/DC converter generally needs to work under high switching frequency when used as an adjustable power supply to reduce the size of magnetic elements such as inductors, transformers and capacitors, but with the rising of the switch frequency, the switch losses will increase and the efficiency will reduce. To solve these problems, research is actively being done on a soft switching method that can be applied under high frequency and on a PWM converter that can be applied under low frequency such as a multi level topology. In this project, a DC-DC conversion method for reducing the ripple of output voltage is proposed. In this proposed converter, buck converters are connected in series to generate the output voltage. By using this method, the ripple of output voltage can be reducing compared to a conventional buck converter. Particularly when output voltage is low, the number of acting switching elements is less and the result of ripple reduction is more obvious, it is expected that the converter proposed in this project could be very useful in the case of wide-range output voltage.