Electrical · Power Electronics
Boost Converter & LED Driver Design
Intermediate 4 weeks 28-45 hours
Design a boost (step-up) converter to drive high-power LEDs at constant current. Measure efficiency and regulation across loads. Core power-electronics skill for hardware roles.
Major
Electrical
Focus area
Power Electronics
Total hours
28-45 hours
What you'll need
- IRF540N N-channel power MOSFET transistor pack
- power inductor assortment kit
- Schottky diode assortment kit 1N5822
- electrolytic capacitor assortment kit
- Arduino Uno R3 ATmega328P microcontroller board
- solderless breadboard 830 point
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Steps
- Calculate duty cycle, inductor, and capacitor values to step up voltage for your LED string.
- Build the boost stage on the breadboard with the MOSFET, inductor, diode, and capacitors.
- Program the Arduino to adjust PWM so the LED current stays constant.
- Measure input and output power at several loads and calculate efficiency.
- Test how well the LED current holds as the input voltage changes.
- Plot efficiency and regulation results and document the build for your portfolio.
What to photograph for your portfolio
- Boost converter build
- efficiency curves
- output regulation plots
- LED drive test
- oscilloscope waveforms
Resume bullet starters
Copy one, then swap in your own numbers.
Designed and built a boost converter & LED driver design using Power electronics, switching converters, constant-current drive
Applied oscilloscope measurement to implement, test, and validate the system end-to-end
Skills you'll show off
Power electronicsswitching convertersconstant-current driveoscilloscope measurement