Arduino Dimmer for Lamp : our IoT prototype for Street Light Control

Here we have designed a PWM dimmer circuit which uses IRF830A (N – CHANNEL 500V – 1.35Ω – 4.5A – TO-220 PowerMESH MOSFET) in a diode bridge used to control the voltage across the bulb with pulse-width modulation (PWM). The power supply voltage for driving the gate is supplied by the voltage across the MOSFET. […]