bidirectional full bridge LLC frequency modulation and phase-shifting hybrid modulation PFM+PSM

Wide voltage range, high-power bidirectional full bridge LLC frequency modulation and phase-shifting hybrid modulation PFM+PSM
Forward LLC topology: Input 400V, Output 200-800V
a. The voltage range for phase shifting is between 200 and 350V for output
b. The voltage range of frequency modulation is between 350 and 800V (the parameters of the resonant cavity are calculated based on this range), and the calculation is based on the voltage transformation ratio between the input rated voltage of 400 and the output rated voltage of 380,
Therefore, the rated operating conditions are 400V and 380V
2. Reverse LC topology: Input 200-800V, output 400V
a. Voltage range for boost frequency modulation: Input between 200 and 380V (due to insufficient gain below 380, using boost strategy, similar control ideas in reference literature)
b. Phase shifting voltage range: Input between 380-800V (because if frequency modulation is continued above 380, the required frequency drop will double, and phase shifting will show advantages)
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