Trans-Inductor Voltage Regulator Phase Timing for Overcurrent Control

The patent implements dynamic phase interval adjustment where the time interval between adjacent phases is varied based on operating conditions. During transient states when load changes rapidly, the interval is increased to prevent current overshoot. During steady-state operation, the interval is reduced to maximize transient response speed. This dynamic adjustment resolves the contradiction between speed and reliability.

The patent changes the timing parameter (phase interval) based on the operational state of the voltage regulator. By detecting whether the system is in transient or steady-state and adjusting the phase interval accordingly, the system optimizes both transient response and current control. This parameter change approach allows the system to achieve fast response when needed while preventing overheating and overshoot.

The patent segments the phase activation process by introducing staggered turn-on timing for adjacent phases. Instead of all phases turning on simultaneously, each phase is activated sequentially with a controlled interval. This segmentation of the activation process reduces the instantaneous current rise slope while maintaining the overall current output capability across all phases.

The patent employs periodic phase activation with controlled intervals between adjacent phases. By implementing a periodic staggering pattern where phases turn on at regular intervals rather than simultaneously, the system maintains continuous current delivery capability while controlling the rising slope to prevent overcurrent conditions.