Home-made Sine wave Solar Inverter [Part-2] | #diyprojects #solarinverter #electronic #inverter

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This video showcases my pure sine wave solar inverter, which has been running continuously for 5 hours. It is directly connected to a 500W solar panel without using any battery. The inverter is in the testing phase and provides an output voltage between 227V to 230V with a frequency of approximately 49Hz, which can be fine-tuned to 50Hz with minor code modifications.

The circuit is based on the PIC12F675 microcontroller, utilizing minimum components for maximum accuracy. A table fan and a 15W LED bulb are used as load, and the performance is as expected.

The video further analyzes the circuit, including a low-pass RC filter, high-capacitance capacitors for stable solar voltage, a buck converter instead of an LM7812 voltage regulator, and three IRF3205 MOSFETs per side to drive the center-tap boost transformer. The IR2110 gate driver IC is used for MOSFET control, and SPWM (Sinusoidal Pulse Width Modulation) is generated using the PIC12F675 microcontroller.

Additionally, the GP0 and GP1 pins generate the SPWM signal, GP2 is used for voltage feedback, and GP5 is connected to a 10MHz crystal oscillator. The push ON switch is connected to GP3 for inverter control.

For those interested in microcontroller programming, tutorials are available via the i-button. This inverter can be easily built on a vero board and customized as needed.

If you enjoyed the video, please like, share, and comment with your feedback and suggestions! 🚀

#diyprojects
#solarinverters
#electronic
#invertertutorial
#SolarInverter
#PureSineWave
#SolarEnergy
#DIYInverter
#SolarPower
#Microcontroller
#PIC12F675
#SPWM
#ElectronicsProject