Patrick Le Fèvre
Ericsson Power Modules

Able to work with any type of power converter, PMBus is a major success story. Its simple SMBus-based two-wire hardware interface is similar to and generally compatible with I²C, while the improved signaling protocols assure greater robustness. As a result, system designers can easily implement power management strategies that range from voltage sequencing for multi-voltage logic devices to monitoring and controlling entire systems using a uniform approach that has minimal impact upon resources.