|
|
Switching LED drivers
Doležal, Miroslav ; Pavlík, Michal (referee) ; Šteffan, Pavel (advisor)
In this bachelor’s these are three basic typologies of drivers (step down, step up, step up and down output voltage) described. Five specific integrated circuits fulfilling the requirement for supplying LED diodes are selected. The output of this thesis is the design and construction of LED driver for supplying high brightness LEDs with 900 mA constant current.
|
|
|
Driver of high brightness white LED
Tomášek, Petr ; Kubíček, Michal (referee) ; Frýza, Tomáš (advisor)
This document is analysing LED driving with switch power supply from classic electric network 230V/50Hz. First chapter analysis LED diodes function and its fundamental parameters . In the second chapter, there is essential information about electric power supply. Third chapter is analysing switch power supply, including simple techniques, which are not used nowadays. In the fourth chapter, there is analysis of LED driver and circuit design. Fifth chapter is analysing construction of driver and its safety. There i salso information about measuring of parameters of constructed driver.
|
|
|
Driver of high brightness white LED
Tomášek, Petr ; Kubíček, Michal (referee) ; Frýza, Tomáš (advisor)
This document is analysing LED driving with switch power supply from electric distribution network 230V/50Hz. In the first chapter you can find short thesis about electric power supplies. Second chapter contains info about power supplies and their safety and EMC requirements. In the third chapter is analysis of LED. Chapter IV. is dedicated to LED power supply circuit desing and the last chapter is about construction and measuring of parametres of designed power supply.
|
|
|
The Design of Enlargement of Sensor and Control Module of Mobile Robots Named Brontes
Husar, Jan ; Kopečný, Lukáš (referee) ; Florián, Tomáš (advisor)
This bachelor's thesis deals with the proposal of the sensory module and the control of mobile robots named Brontes enlargement. For this purpose a printed circuit board named MX05 was created, which extends its functionality via connection to the control board named LTR001.2. Construction of the board was conducted on the bases of the needs and requirements coming from robot peripherals. The proposal was created containing the control, protection and filtering features. Further, the board was realized and inhabited. Using MX05 creates a great simplification of wiring and there is implied the extension of the original features that are useful not only in robots Brontes.
|
|
|
Templates of DC/DC Converters
Skoupý, Petr ; Kubíček, Michal (referee) ; Šebesta, Jiří (advisor)
The aim of this thesis is a suggestion and a realization of universal DC/DC convertor with three chips. The first part of this work is focused on the progressive analysis of the power and control part, as function blocks and diagrams. The greatest emphasis is placed on the three circuit wiring for step-down, step-up and inverting convertor. It was necessary to choose the right control circuit, which is available on the market and fulfil all our requirements. Progressive analysis of outer peripheral parts calculations and selecting for the convertor with specific parameters and load characteristic and creation of universal PCB with shouldering is the final realization.
|
|
|
Step-down converter with variable output voltage in range from 20 to 100 V
Pazourek, Petr ; Šmirg, Ondřej (referee) ; Hanák, Pavel (advisor)
This master's thesis describes the design and the implementation of a step-down converter with variable output voltage for laboratory purposes. In the introduction the basic functions of switching power supplies are shown, flyback, forward and push-pull converters are described, followed by some integrated circuits for power management of converters. The second chapter discusses in detail the design of requested switched power supply, including the calculation of the electronic parts and design of the storage inductor. Following are described some observations of building this power supply, including the output characteristics. In conclusion, the obtained results are assessed, including proposals to improve whole design.
|
guest ::
