Hierarchical Multi-Phase Voltage Converter for Scalable Fault Detection

The patent combines multiple conversion modules (first-level, second-level, third-level) into an integrated multi-phase voltage converter system. Multiple phases share common control circuitry, inductors, and current feedback paths, merging functions that would traditionally require separate components for each phase. This reduces wiring complexity and packaging cost while maintaining high power delivery capability through the multi-phase architecture.

The patent implements a universal control chip that manages multiple phases through a single interface. The control chip provides multi-functional capabilities including pulse distribution to multiple conversion modules, average current signal processing, and unified error reporting. This universal approach reduces the number of required components and simplifies packaging, lowering manufacturing costs while supporting high-power multi-phase operation.

The patent implements a feedback mechanism where each conversion module's error status is monitored and reported to the control chip. The control chip receives error signals from multiple phases and can identify which specific phase experienced an error by analyzing the feedback patterns. This feedback system maintains high error detection accuracy for specific phases while supporting multi-phase high-power operation.

The patent merges current feedback from multiple phases into a single average current signal that is fed back to the control chip. Instead of requiring separate current feedback pins for each phase, the system combines the feedback paths and processes the aggregate signal. This maintains control precision through accurate current monitoring while significantly reducing the number of required pins and simplifying the device interface.