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Miniature high efficiency DC/DC boost converter
Miko, Radoslav ; Vašíček, Adam (referee) ; Červinka, Dalibor (advisor)
Bachelor thesis deals with design and implementation of the DC/DC converters for charging notebook in cars. Variant 1 with parameters 9 – 18 V/19 V – 5 A is designed for 12 V system, typical for cars. Variant 2 introduce wide input range DC/DC converter with parameters 9 – 32 V/19 V – 5 A designed for using in 12 – 24 V system, thus usable in car or truck. It is also possible to use the converter in the supply system of small personal airplanes or in army supply systems which corresponds to the input voltage range. The main requirements are minimal size of converters, high mechanical durability for hard condition of operation and maximal efficiency with using a synchronous rectifier.
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Step down DC/DC converter with high efficiency
Chudý, Andrej ; Cipín, Radoslav (referee) ; Procházka, Petr (advisor)
This bachelor's thesis deals with design and realization of several versions of DC/DC buck converter. The theoretical part of the bachelor's thesis is focused on the general analysis of DC/DC converters with a detailed description of the buck converters. Another part specializes in the analysis of the current state in this field, where the basic differences between the synchronous and diode rectifier are explained, electromagnetic interference and GaN transistors are described. Subsequently, the thesis involves the design and calculations of necessary parameters of the buck converter. Calculations are verified by simulation and subsequent production of the first prototype. The basic measurements are performed on the prototype. Detected deficiencies of the prototype are removed in version 1.0. In order to achieve higher efficiency, innovated version 2.0 and version with GaN transistors are produced. The thesis is finished by comparing created buck converters.
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Step down DC/DC converter with high efficiency
Chudý, Andrej ; Cipín, Radoslav (referee) ; Procházka, Petr (advisor)
This bachelor's thesis deals with design and realization of several versions of DC/DC buck converter. The theoretical part of the bachelor's thesis is focused on the general analysis of DC/DC converters with a detailed description of the buck converters. Another part specializes in the analysis of the current state in this field, where the basic differences between the synchronous and diode rectifier are explained, electromagnetic interference and GaN transistors are described. Subsequently, the thesis involves the design and calculations of necessary parameters of the buck converter. Calculations are verified by simulation and subsequent production of the first prototype. The basic measurements are performed on the prototype. Detected deficiencies of the prototype are removed in version 1.0. In order to achieve higher efficiency, innovated version 2.0 and version with GaN transistors are produced. The thesis is finished by comparing created buck converters.
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Miniature high efficiency DC/DC boost converter
Miko, Radoslav ; Vašíček, Adam (referee) ; Červinka, Dalibor (advisor)
Bachelor thesis deals with design and implementation of the DC/DC converters for charging notebook in cars. Variant 1 with parameters 9 – 18 V/19 V – 5 A is designed for 12 V system, typical for cars. Variant 2 introduce wide input range DC/DC converter with parameters 9 – 32 V/19 V – 5 A designed for using in 12 – 24 V system, thus usable in car or truck. It is also possible to use the converter in the supply system of small personal airplanes or in army supply systems which corresponds to the input voltage range. The main requirements are minimal size of converters, high mechanical durability for hard condition of operation and maximal efficiency with using a synchronous rectifier.
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