Resonant Power Supply Voltage Stabilization

The patent applies periodic action by implementing a resonant circuit that operates in periodic cycles, utilizing the natural resonance frequency of the LC circuit to achieve zero voltage switching at regular intervals. The switch is controlled to turn on when the resonant capacitor voltage reaches zero, which occurs periodically during the resonance cycle, thereby reducing switching losses while maintaining voltage stability through controlled periodic operation.

The patent employs parameter changes by dynamically adjusting the resonant circuit parameters (inductance L and capacitance C) to maintain a constant resonant frequency that is independent of load impedance. By carefully selecting and maintaining specific parameter relationships (where the resonant frequency equals the switching frequency), the system achieves both reduced switching losses and stable output voltage despite variations in load conditions.

The patent applies the principle of mechanical vibration by utilizing electrical resonance in the LC circuit, where the capacitor and inductor oscillate energy back and forth at a specific resonant frequency. This resonant oscillation allows the system to maintain voltage stability through the natural energy exchange between the capacitor and inductor, eliminating the need for excessively large capacitor values while achieving reliable voltage regulation.

The patent introduces an intermediary resonant inductor into the circuit between the voltage source and the load. This intermediary component, combined with the output capacitor, forms a resonant circuit that actively manages energy storage and release, providing voltage stability without requiring the output capacitor alone to be excessively large. The resonant inductor acts as a mediator that works synergistically with the capacitor to maintain stable voltage output.