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Rancang Bangun Inverter Satu Fasa Menggunakan Teknologi Arduino
ABSTRAK
An inverter is a device that functions to convert direct current (DC) voltage into alternating current (AC) voltage. This study aims to design and test a 12V DC to 220V AC inverter system using an Arduino microcontroller as a PWM signal generator. The circuit consists of several main components: Arduino, optocoupler for signal isolation, MOSFET as an electronic switch, and a transformer for voltage conversion. Test results show that the PWM signal from the Arduino has a voltage of 6.88V and a frequency of 49.981 Hz, which remains stable after passing through the optocoupler with a voltage of 10.40V and a frequency of 49.977 Hz. The MOSFET switching signal shows a voltage of 11.20V and a frequency of 42.225 Hz, while the transformer output produces a voltage of 197.98V and a frequency of 49.983 Hz. The addition of a parallel capacitor on the secondary side of the transformer effectively forms an output waveform that approaches a sinusoidal shape. Therefore, the designed inverter system can produce a stable AC voltage, making it suitable for low to medium household loads.
Key : inverter, PWM, Arduino, MOSFET, transformer, AC voltage
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