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Microcontroller based SMPS protection / Khairi Bin Khalib

By:

Khairi Khalib

Material type: Text

TextPublication details: Kuantan, Pahang : UMP, 2008Description: 87 p. : ill. ; 30 cm. + 1 computer discISBN:

THE0006180(Local)

Other title:

Microcontroller based SMPS protection [electronic resource]

Subject(s):

Programmable controllers

Dissertation note: Project paper (Bachelor of Electrical Engineering (Power system)) -- Universiti Malaysia Pahang - 2008 Abstract: This project have 3 main objectives to achieve, first the project should be able to protect DC load equipment from over voltage from their maximum voltage value or lower voltage from their minimum value. Second it should be able to protect DC load equipment from over current form their maximum current value or lower current from their minimum value. Third the voltage and current protection value are free to set by user. Simple methodology for this project is when the protection circuit detects any high or low voltage and current from power supply output that supplied to the load, it will stop the Pulse-width modulation (PWM) signal output. Sensing circuit will detect any voltage and current alteration output from power supply. Using the PIC microcontroller (PIC 18F4550), it will control the PWM signal output. The PWM output signal can be use for the power supply switching circuit. If the PWM signal stops, the operation for the power supply also will stop. Controlling the PWM signal will ensure that we can control the power supply whether want to turn it on or off.

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Holdings ( 2 )
Title notes ( 2 )

Holdings
Item type	Current library	Call number	Copy number	Status	Date due	Barcode
Final Year Report	UMPLIB PEKAN	TJ223.P76 K43 2008 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000037420
Final Year Report	UMPLIB PEKAN	CD 3274 \| TJ223.P76 K43 2008 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000037421

Project paper (Bachelor of Electrical Engineering (Power system)) -- Universiti Malaysia Pahang - 2008

This project have 3 main objectives to achieve, first the project should be able to protect DC load equipment from over voltage from their maximum voltage value or lower voltage from their minimum value. Second it should be able to protect DC load equipment from over current form their maximum current value or lower current from their minimum value. Third the voltage and current protection value are free to set by user. Simple methodology for this project is when the protection circuit detects any high or low voltage and current from power supply output that supplied to the load, it will stop the Pulse-width modulation (PWM) signal output. Sensing circuit will detect any voltage and current alteration output from power supply. Using the PIC microcontroller (PIC 18F4550), it will control the PWM signal output. The PWM output signal can be use for the power supply switching circuit. If the PWM signal stops, the operation for the power supply also will stop. Controlling the PWM signal will ensure that we can control the power supply whether want to turn it on or off.