Phase-Locked Loops (PLLs)

• Direct Phase Resolver (DPR)
• MultiRate Sampling
• Isometric Sampling
• Fault Diagnosis and Detection
• Signal Feature Extraction

Chip Design

• Performance Optimization
• Circuit Optimization

Electric Machinery Control

• Isometric Sampling-based Vector Control
• Induction Motor & Generator
• PMSM & IPMSM
• Wind Power Conversion

Modular Multilevel Converters (MMCs)

• High Voltage Applications
• Static Synchronous Compensators (STATCOMs)
• Unbalanced Voltage Compensator
• Active Power Filters (APFs)
• Motor Drive

Resonant Inverters

• PWM and PFM Modulation
• Voltage Gain and Efficiency Optimization

Learning-based Digital Control

• Digital Control
• Data-Driven Control