Wireless Power Controller Switching Loss Reduction

The patent applies periodic action by using pulse-width modulation (PWM) to switch the power supply periodically. The controller adjusts the duty cycle of the switch, turning it on and off at high frequency, to control the average power supplied to the load. This periodic switching enables precise power control while minimizing switching losses by optimizing the timing and duration of each switching cycle.

The patent implements dynamics by making the switching frequency and duty cycle adjustable based on real-time load conditions. The controller dynamically modifies the switching parameters to match the power requirements of the load, enabling adaptive power control that responds to changing conditions while maintaining optimal efficiency and minimizing unnecessary switching losses.

The patent applies dynamics by replacing the large fixed-capacitance DC link capacitor with a smaller capacitor combined with an active power factor correction (PFC) circuit. The PFC circuit dynamically adjusts the equivalent capacitance by switching capacitors in and out of the circuit based on real-time power demands, maintaining power supply stability while significantly reducing the physical size and cost of the capacitor.

The patent implements parameter changes by using a controller that dynamically adjusts the operating parameters of the power conversion circuitry. By changing the switching frequency, duty cycle, and capacitor configuration based on load conditions, the system maintains stable power supply with a smaller capacitor, avoiding the need for large fixed-capacitance components.