This microcontroller based Project LED Driver uses Microchip Flash based microcontroller PIC16F that uses buck boost converter circuit to drive a superbright W LED module that consumes up to mA of current. The LED used in this project is BL series White K LED Light from Lamina. The buck boost converter circuit is derived from switching power . · schematics and source code for a W power LED driver using the PIC16F MCU. The application, as shown, can be connected to operate as a buck-boost converter or a boost converter. The PIC16F makes a great choice for this application because it combines a MCU with many on-chip analog peripherals. This application is similar to. · The buck-boost topology is also known as a flyback or inverting regulator. The PIC16F makes a great choice for this application because it combines a MCU with many on-chip analog peripherals. The on-chip op amp of PIC16F is used to amplify the voltage across the current sensing resistor.
In this project, I will be designing a power LED driver using PIC microcontroller and also buck-boost converter. The reason for me to design such a driver is to provide an efficient solution to the old method using a resistor in series to limit the current through the power LED because by using the method the LED will. supported with a single H-bridge converter using a non-inverting buck-boost topology. The STM32F microcontroller is interfaced to the power switches with a minimum hardware, some acting as level shifters especially to adapt the low-level voltage of microcontroller supply to the power stages connected to the external source. The buck-boost. This microcontroller based Project LED Driver uses Microchip Flash based microcontroller PIC16F that uses buck boost converter circuit to drive a superbright W LED module that consumes up to mA of current. The LED used in this project is BL series White K LED Light from Lamina. The buck boost converter circuit is derived from switching power supply applications which is becoming more common as the overall solution is smaller in size and more efficient compared to linear.
Each of the LED currents can be programmed through serial interface. Buck-boost based LED driver; RGB color sequencing; Up to A output current. Four-switch converters combine two converters (a buck and boost) into a single converter, with the obvious advantage of reduced solution size and cost. A simplified circuit design for an LED driver is shown in Figure 2 below, using a mixedsignal, high voltage 8bit microcontroller.
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