A typical LLC resonant system consists of a dc bus, full-bridge/half-bridge voltage source inverter, LLC resonant tank, high-frequency transformer, diode-bridge, output capacitor filter, and dc load. The overall structure of the resonant LLC template is shown below.
Feedforward control provides a solution very close to the required operating point under various line regulations and load regulations.
The template will help you design 6 different resonant converters, namely, LC, LLC, CLL, CL, LLC-L, and CLLLC resonant tanks for state-of-the-art resonant applications.
The Design Suite will greatly help you to reduce design iteration time and find the optimum values of the quality factor, inductance ratio, and frequency range operation. Generate a complete resonant system that is operational and ready to simulate in no time.
The toolset comprises of two new instantaneous design tools and a new lookup-table based feedforward control for optimal and robust design of resonant LLC converters:
The Steady-State Solver Tool is a time-domain-based tool for fast steady-state analysis of resonant LLC converters for fast parameter optimization. This tool provides instant resonant waveform and output calculations of peak and Root Mean Square (rms) values for device selection and loss calculation. The steady-state waveform can visualize extreme and worst cases to verify soft-switching or to determine the maximum dc gain, minimum frequency value, and more.
The Design-Curve Tool is another time-domain-based tool for fast design/performance curves analysis. Using this tool, you can compare dc gain variations with relative frequency at different values of inductance ratio and quality factor. You can examine the slope of the gain curve at different values of the quality factor and inductance ratio.