Load Switch Control Circuit with Voltage-Adaptive Clock Frequency

The patent applies the Dynamics principle by making the clock signal frequency dynamic rather than fixed. The oscillator adjusts the clock signal frequency based on the power voltage magnitude, allowing the system to adapt to changing voltage conditions. This dynamic adjustment ensures that the turn-on speed of the load switch remains substantially unchanged regardless of power voltage variations, thereby preventing large in-rush currents while maintaining reasonable circuit complexity.

The patent implements the Feedback principle by using the power voltage signal itself as feedback to control the oscillator. The oscillator receives the power voltage and automatically adjusts the clock signal frequency based on the voltage magnitude, creating a closed-loop control system. This feedback mechanism ensures stable turn-on speed across different voltage conditions without requiring complex external control circuits, as the system self-regulates based on its own operating parameters.

The patent applies the Self-service principle by designing the oscillator to directly use the power voltage as its control input. The oscillator automatically establishes the frequency-voltage relationship without requiring external control logic or additional sensing circuits. The system serves itself by using its own power voltage to regulate its operating frequency, thereby reducing in-rush current while minimizing control complexity. This self-regulating approach eliminates the need for separate frequency control mechanisms.