I understand that a boost converter increases voltage, but I’m not sure how it actually works. How can it take a low voltage, like 2V, and turn it into something much higher? Where does the extra voltage come from? I’d appreciate a simple explanation!
A boost converter is a type of DC-DC converter that increases voltage while reducing current to maintain energy balance. It operates using an inductor, a switch (transistor), a diode, and a capacitor.
When the switch is closed, current flows through the inductor, storing energy in its magnetic field. When the switch opens, the inductor resists the sudden drop in current and releases its stored energy. This energy combines with the input voltage, resulting in a higher output voltage. The diode ensures current flows in the correct direction, and the capacitor smooths the output voltage for a stable supply.
By rapidly switching on and off, the boost converter efficiently steps up the voltage. The extra voltage comes from the inductor’s stored energy, making it useful in applications like battery-powered devices, LED drivers, and power supplies where a higher voltage is required.
A boost converter increases DC voltage. It uses an inductor to store energy when a switch is on, then releases that energy plus the input voltage to the output when the switch is off. Rapid switching and a diode control the process, and a capacitor smooths the output.