Half bridge inverter

A Half-Bridge Inverter is a basic DC-AC converter that produces an AC output from a DC input using two switching devices.

Key Components of a Half-Bridge Inverter:

1. DC Supply (e.g., 100 V DC)
2. Two Switching Devices (e.g., IGBT1 and IGBT2, or MOSFETs)
3. Two Capacitors (C1 and C2) – voltage divider
4. Load (typically resistive or RL)
5. Gate Pulses – to alternate switches at desired frequency

🔄 Working Principle:

• The DC input is split into +Vdc/2 and –Vdc/2 using the two capacitors.
• Switches (IGBT1 and IGBT2) are operated alternately:
• When IGBT1 is ON, output = +Vdc/2
• When IGBT2 is ON, output = –Vdc/2
• Output is a square wave AC voltage across the load.