Pspice Simulation Power Supply with Current Type Single-Ended Flyback Output with UC3845

 

FLYBACK CONVERTER

The single-ended flyback switching power supply has been widely used in the power supply of automatic control and intelligent instrument because of its advantages of simple structure and few components . The duty cycle of the power MOSFET is regulated by pulse width modulation (PWM) technology to stabilize the output voltage. This circuit used a high-performance integrated control chip UC3845 as a pulse width modulation device. Its main features are an internal oscillator, high-precision error comparator, cycle-by-cycle current sampling-comparison, low start-up current, high-current totem pole output, etc., which are ideal devices for driving MOSFETs

VYSOKÉ UČENÍ TECHNICKÉ V BRNĚ BRNO UNIVERSITY OF TECHNOLOGY FAKULTA ELEKTROTECHNIKY A KOMUNIKAČNÍCH TECHNOLOGIÍ FACULTY OF ELECTRICAL ENGINEERING AND COMMUNICATION ÚSTAV RADIOELEKTRONIKY DEPARTMENT OF RADIOENGINEERING -DC-DC MĚNIČ PRO MATRIX BEAM- MODUL DC-DC CONVERTER FOR MATRIX BEAM MODULE DIPLOMOVÁ PRÁCE MASTER'S THESIS AUTOR PRÁCE AUTHOR Bc. Roman Sikora

 

VYSOKÉ UČENÍ TECHNICKÉ V BRNĚ BRNO UNIVERSITY OF TECHNOLOGY FAKULTA ELEKTROTECHNIKY A KOMUNIKAČNÍCH 

TECHNOLOGIÍ FACULTY OF ELECTRICAL ENGINEERING AND COMMUNICATION ÚSTAV

 RADIOELEKTRONIKY DEPARTMENT OF RADIOENGINEERING 

DC-DC MĚNIČ PRO MATRIX BEAM MODUL 

 ABSTRACT 

The master thesis deals with the development of buck-boost DC-DC converter which supplies matrix beam module. The design is focused on testing two-phase boost converter and three channel buck converter manufactured by NXP Semiconductors. Part of the design is implementation of microcontroller for converter control and communication with computer. Part of the thesis is also to design user interface on Windows platform for easy system configuration. Next thing the thesis deals with is designing load for DC-DC converter that is variable and can make different current consumption. One part of this thesis is focused to achieve the lowest conducted emissions and to maximize conducted immunity. Part of this project is production of a prototype and prototype testing.

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https://www.vut.cz/www_base/zav_prace_soubor_verejne.php?file_id=208360

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