King Abdulaziz University

Saad Mekhilef

Hussain Bassi

Muhyaddin Rawa

Noraisyah Binti Mohamed Shah

Marif Daula Siddique

A multi-level switched capacitor boost inverter includes a series connection of a two-switched capacitor circuit, a source module and at least one one-switched capacitor circuit. Level-shifted pulse width modulation is used to apply gate pulses to the switches. The multi-level switched capacitor boost inverter uses only three capacitors and a single DC voltage source to generate thirteen voltage levels at load terminals with a voltage gain of three. The capacitors of the two-switched capacitor circuit are self-balancing. Additional one-switched capacitor circuits can be added in series with the inverter. Each additional one-switched capacitor circuit increases the number of levels and increases the gain by one.

Method of operating a multi-level switched capacitor boost inverter

An 11 level boost active neutral point clamped (BANPC) inverter using four capacitors and a single DC voltage source to generate eleven voltage levels at load terminals with a voltage gain of 2.5. A minimum of switching elements are used. Gate pulses for the switches are generated using nearest level control pulse width modulation (NLC-PWM). The capacitors of the 11 level boost active neutral point clamped inverter are self-balancing.

Method for generating output voltages with a boost inverter

11-level boost active neutral point clamped inverter topology with higher voltage gain

Active neutral point clamped inverter with a plurality of boost levels

Load generation using a multi-level switched capacitor boost inverter

Switched capacitor based boost inverter topology with a higher number of levels and higher voltage gain

Growing community of inventors

Jeddah, Saudi Arabia

Saad Mekhilef