Point-of-Load Converter Current Sharing for Constant-On-Time Control

The patent implements a feedback mechanism where each point-of-load converter shares its current value with others via bit stream data. Each converter receives current values from other converters, calculates the average current, determines the difference between its own current and the average, and uses this error signal to adjust its turn-on signal. This closed-loop feedback system continuously monitors and corrects current imbalances, improving system robustness while the real-time binary computation minimizes adjustment delays.

The patent replaces complex floating-point arithmetic operations with simpler binary computation methods. Instead of using traditional analog circuits or complex digital processors to calculate average currents and error signals, the system uses binary-coded current values that can be processed through straightforward digital logic operations. This substitution of computational mechanics enables real-time processing while reducing the complexity of the computational hardware required.

The patent extracts only the essential current information needed for balancing and transmits it as simplified bit stream data across the communication bus. Rather than sharing complete current waveforms or detailed measurement data, each converter transmits a coded representation of its current value. This extracted essential information is sufficient for calculating average current and determining error signals, achieving accurate current balancing while minimizing communication overhead and system complexity.