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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Driver for ultra-bright white LED
 Heralecký, Lukáš ; Čožík, Ondřej (referee) ; Levek, Vladimír (advisor)
The aim of this thesis is to study the possibilities of controlling high-brightness white LEDs using circuits operating at high voltages. The job itself is a division of existing light sources and mainly focus on semiconductor technology LED. The following describes the voltage of DC / DC and AC / DC. The work contains a description of the three high-voltage inverters are designed for power LEDs. Finally, it created a draft scheme of the PCB. As a control circuit is chosen ATMEGA 162 microcontroller from Atmel and source for LED diode is formed HV9910 and HV9861 circuits.
Detailed record
Driver for ultra-bright white LED
 Heralecký, Lukáš ; Čožík, Ondřej (referee) ; Levek, Vladimír (advisor)
The aim of this thesis is to study the possibilities of controlling high-brightness white LEDs using circuits operating at high voltages. The job itself is a division of existing light sources and mainly focus on semiconductor technology LED. The following describes the voltage of DC / DC and AC / DC. The work contains a description of the three high-voltage inverters are designed for power LEDs. Finally, it created a draft scheme of the PCB. As a control circuit is chosen ATMEGA 162 microcontroller from Atmel and source for LED diode is formed HV9910 and HV9861 circuits.
Detailed record

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