Boost Converter

DC-DC converter that steps up (increases) the input voltage to a higher output voltage while reducing the output current.

Basic Boost Converter Circuit

Main Components:

• Switch (S) – Typically a MOSFET
• Inductor (L) – Stores energy when the switch is on
• Diode (D) – Provides a path for current when the switch is off
• Capacitor (C) – Filters the output voltage
• Load (R) – Consumes the boosted voltage

perating Principle

🔌 1. Switch ON:

• Inductor stores energy.
• Current flows through Vin → L → S → GND.
• Diode is reverse-biased, output is powered by the capacitor.

🔋 2. Switch OFF:

• Switch opens.
• Inductor reverses polarity and pushes current through the diode.
• Energy from inductor + input charges the capacitor and powers the load.