Orthogonal Decomposition Based Digital Controller Design for Hybrid Converter

This paper proposes an orthogonal decomposition based digital hybrid converter control enhancement technology. In conventional controller design, imbalanced flying capacitor voltage could cause interference between output voltage regulation and flying capacitor voltage balancing. This could degrade related performance metrics, such as line transients. Therefore, this research proposes techniques based on orthogonal decomposition to dynamically minimize the impact of flying capacitor voltage regulation on output voltages. Comparing the simulation result of the proposed method with the conventional approach, it shows a noticeable enhancement in line transient response, indicating the potential of integrating it with many digital control schemes for extra performance boosts.