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Shown on this slide are example screen shots taken from Renesas' PowerNavigator software used to configure and tune the device. Full device configuration is achieved in the software. The controller supports autonomous phase shedding, with adjustable current thresholds, all managed in software. This gives the user complete autonomy to adjust current thresholds to deliver maximum efficiency on their individual board design. The full digital compensator enables on-the-fly loop tuning. The family of controllers supports a dual-edge modulation scheme, which implies the controller can modulate both leading and trailing edges of the PWM pulse to respond to any transient event. Additional control knobs are available using PowerNavigator to filter out any noise and even pull in the pulse, with features like pulse advance to respond to a demanding load or transient event. The variable duty cycle coupled with variable frequency of the digital modulator scheme and synthetic current control architecture enables Renesas to respond to any load transient with precise voltage and current positioning. In short, with just seven simple screens using the PowerNavigator software, a user can realize a complete power solution in minutes and eliminate board re-work associated with managing complex RC tables that is evident in competing solutions in the market today.
