Inverters convert DC power to AC power. They are used in transmission systems, UPS’s, motor speed control, solar power inverters and in many other places. Most commercial inverters are available for only up to a frequency of 50-60 Hz, as a higher frequency means a faster switching times which can be expensive to produce. Moreover, as most devices are rated for a frequency of 50 Hz(60Hz in some countries), there isn’t a requirement for frequencies higher than that.
However, certain projects and research works require higher frequencies. This particular inverter was made for a wireless power transfer project, where a higher frequency will increase the efficiency.
More details about this project can be found at this “Instructable’s” site.
Soham Chatterjee 