Network and Telecommunication Power Electronics
Technical Lecture Session
GaN, Arbitrary Waveform Generator, Optimization, Design Automation
Recent advances in technology of GaN power devices and high-frequency magnetic materials are key enablers of small, compact designs of power converters in MHz range and the power range up to several hundreds of watts. However, impact of the devices and magnetic materials must be carefully characterized in order to fully understand the boundaries of current technology and to be able to exploit it fully. This is usually performed through a holistic, automated design procedure based on multi-objective optimization which focuses on the converter efficiency and power density for the given electrical parameters. In this paper, an optimized 100W, 1.75MHz- switching frequency, digitally controlled four-quadrant voltage-source PWL arbitrary generator based on ANPC Three-Level converter is presented. The generator is capable of providing +/-100 V, +/-1A at the output, with the tracking speeds up to 2V/us, and the steady state efficiency beyond 95% and with a size below 12cm^2. Having these characteristics, the presented switch-mode generator outperforms existing linear and hybrid power amplifiers.