Patent ID: 9148068
Filing Date: 2015-09-29
Classification: H02J,H02M,Y02E

Abstract:
1. A power supply system comprising: an input from three-phase alternating current (AC) power grid lines; an output for supplying electrical power to rack-mounted computing equipment; a main power circuit including a power factor correction (PFC) module and a PFC bulk capacitor coupled to the output, wherein the main power circuit is configured to draw power from one or more of the three-phase power grid lines; and a bypass power circuit including a rectifier and a shelf bulk capacitor coupled in parallel to the PFC bulk capacitor, wherein the bypass power circuit is configured to draw power from each of the power grid lines, and rectify the three-phase AC current from the power grid lines to produce a rectified output across the shelf bulk capacitor, wherein the main power circuit is configured to provide electrical power to the output during normal operation, and the bypass power circuit is configured to provide electrical power to the output during bypass operation upon failure of the PFC module.