Digital control of boost converter

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ABSTRACT: Digital control of boost converter
Unstable or improper voltage supplies can lead to characteristics degradation and even malfunction. To prevent this, a DC-DC converter is needed to convert and stabilize the voltage. A device that stabilizes the voltage using a DC-DC converter is referred to as a voltage regulator.
This project develops a prototype of 5-12V DC-DC Boost Converter. The boost converter circuit is designed using MOSFET, Resistor, Capacitor, Inductor and Diode. The key principle that drives the boost converter is the tendency of an inductor to resist changes in current. Inductor is designed using ferrite pot core and windings. PIC Microcontroller is used to generate the PWM cycle used to switching the MOSFET. Microcontroller will measure the voltage of Boost converter using voltage sensors will be display on LCD.
The main objectives of the project are:
• Design a 5v-12v dc-dc boost converter circuit.
• Monitoring input/output voltages of boost convert using LCD.
The major building blocks of this project are:
1. Regulated power supply.
2. PIC Microcontroller.
3. Mosfet.
4. Inductor.
5. Capacitor.
6. Resistor.
7. Diode.
8. Voltage sensors.
9. XL6009 IC.
10. LCD display.
11. Crystal Oscillator.
12. Reset Button.
13. LED indicator.
Software’s used:
1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3. Express SCH for Circuit design.