Daisy Chain Configuration for Power Converters

摘要

A system includes a plurality of power supplies and a controller. The plurality of power supplies outputs power to a load. A serial bus connects the plurality of power supplies in a daisy chain. The controller is connected to first and last ones of the power supplies by the serial bus. The controller is connected to a management bus via a management bus interface. The controller monitors the plurality of power supplies via the serial bus. The controller transmits status information of the plurality of power supplies to the management bus via the management bus interface of the controller.

主权项

1. A system comprising:
a plurality of power supplies that supply power to respective loads and that are connected in a daisy chain by a serial bus; and a controller that is connected to first and last ones of the power supplies by the serial bus, that is connected to a management bus via a management bus interface, that monitors the plurality of power supplies via the serial bus, and that transmits status information of the plurality of power supplies to the management bus via the management bus interface of the controller, wherein the serial bus is different than the management bus, wherein the controller comprises an initialization module that determines a time-out period based on a time difference between transmitting a first signal to a first one of the plurality of power supplies via the serial bus and, in response, receiving a second signal from the last one of the plurality of power supplies via the serial bus.