This video, presented by Nicola Rosano, is perfect for engineers new to LLC transformer design who want to learn the fundamentals and streamline their design process using Frenetic Simulator.
Nicola Rosano, a seasoned consultant in power electronics with extensive experience in simplifying complex designs, guides you through the basics. Nicola explains LLC transformers step by step, making it easy for those with no prior experience in this type of converter to follow along and apply the concepts to their own projects.
Designing an LLC transformer can seem complex, especially if you’re unfamiliar with key aspects like balancing efficiency, reducing EMI, and optimizing thermal performance. With Frenetic Simulator, our intelligent model-based platform, you’ll learn how to simplify these processes, turning what could be a challenging task into an intuitive and efficient workflow.
Frenetic Collect Platform Overview
Nicola Rosano demonstrated the capabilities of the Frenetic Collect Platform, emphasizing its efficiency in transformer design. Key features include:
- LLC Topology Simulation: Simplifies complex transformer designs.
- CLLC Premium Feature: Supports bidirectional converters.
- Graphical Approach: Enhances understanding of LLC design.
LLC Kernel Circuit Analysis
The LLC kernel circuit’s behavior was analyzed through load and inductance sweeping:
- Load Sweeping: Identifies zero voltage (ZVS) and zero current switching (ZCS) zones.
- Inductance Variation: Assesses impact on voltage gain and input impedance.
Transformer Design Considerations
Factors influencing transformer design include:
- Core Losses: Evaluated using flux density and frequency shifts.
- Input Inverter Stages: Full-bridge and half-bridge configurations with harmonic approximations.
- Output Rectification: Full-bridge vs. four-wave rectifiers for voltage and current management.
Scaling Laws Application
Scaling laws enable rapid adaptation of designs across varying voltages, frequencies, and power levels. This methodology reduces design time and enhances scalability.
Case Studies
Two design examples showcased:
- Standard Transformer Design: Focused on maintaining ZVS and ZCS while optimizing core losses.
- Matrix Transformer Design: Demonstrated benefits in symmetry, reduced parasitic effects, and improved thermal management.
Frenetic Platform Features
- Simulation Validation: Ensures accuracy with SPICE cross-verifications.
- Core Optimizer: Suggests optimal core selections based on performance criteria.
- Mechanical Design Integration: Provides detailed transformer schematics.
Future Enhancements
- CLLC Converter Simulation: Supports complex bidirectional power stages.
- Planar Magnetics Integration: Beta testing underway, with full release expected in Q1 next year.
Conclusion
The Frenetic Platform significantly accelerates the magnetic component design process, offering robust simulation tools and scalability. Continuous updates, such as planar magnetics and advanced converter simulations, reinforce its value for engineers worldwide.