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Efficiency of Converting Electric Energy to Light in Current Light Sources
Krbal, Michal ; Pavelka, Tomáš (referee) ; Baxant, Petr (advisor)
The goal of this diploma’s thesis is to inform about present development of light sources, new technologies and about achieved parameters of these light sources. The thesis is mainly directed to describe efficiency of transformation electric energy to light at single types of light sources. There are described the concrete technical parameters of sources quoted by manufacturers and the contructional solution of single types of light sources. There is created a graphic comparation of electrotechnical and light parameters of the light sources.
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The tube lights starter
Růžička, Jakub ; Šteffan, Pavel (referee) ; Pavlík, Michal (advisor)
This thesis is about design of the electronic ballast used for starting and dimming six 40 W fluorescent lamps. Controlling is provided by button and analog input. In the work it is used micro-controller which controls excitation circuit of transistors in the half-bridge driver IR2104. The electronic ballast is created for two fluorescent lamps with possibility to add other modules. Behavior of the ballast was simulated, and then it was measured on constructed devices.
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Electronic Lamb Ballast for HCFL
Uherek, Jaromír ; Prokop, Roman (referee) ; Semiconductor, Roman Štuler, ON (advisor)
The Bachelor´s Thesis goal is the realization of lamp ballast for a hot cathode fluorescent lamp (HCFL). These lamps are now widely produced in the performance of units to tens of watts. They are also used in the manufacture of energy saving lamps which are used for direct replacement of incandescent light bulbs. The lamp ballasts are produced as a separate unit for existing lights too. Main advantage of lamp ballast is higher efficiency and realization other functions i.e. dimming.
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The tube lights starter
Růžička, Jakub ; Šteffan, Pavel (referee) ; Pavlík, Michal (advisor)
This thesis is about design of the electronic ballast used for starting and dimming six 40 W fluorescent lamps. Controlling is provided by button and analog input. In the work it is used micro-controller which controls excitation circuit of transistors in the half-bridge driver IR2104. The electronic ballast is created for two fluorescent lamps with possibility to add other modules. Behavior of the ballast was simulated, and then it was measured on constructed devices.
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Electronic Lamb Ballast for HCFL
Uherek, Jaromír ; Prokop, Roman (referee) ; Semiconductor, Roman Štuler, ON (advisor)
The Bachelor´s Thesis goal is the realization of lamp ballast for a hot cathode fluorescent lamp (HCFL). These lamps are now widely produced in the performance of units to tens of watts. They are also used in the manufacture of energy saving lamps which are used for direct replacement of incandescent light bulbs. The lamp ballasts are produced as a separate unit for existing lights too. Main advantage of lamp ballast is higher efficiency and realization other functions i.e. dimming.
|
|
|
Efficiency of Converting Electric Energy to Light in Current Light Sources
Krbal, Michal ; Pavelka, Tomáš (referee) ; Baxant, Petr (advisor)
The goal of this diploma’s thesis is to inform about present development of light sources, new technologies and about achieved parameters of these light sources. The thesis is mainly directed to describe efficiency of transformation electric energy to light at single types of light sources. There are described the concrete technical parameters of sources quoted by manufacturers and the contructional solution of single types of light sources. There is created a graphic comparation of electrotechnical and light parameters of the light sources.
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