Inventors:
Selver Corhodzic - Campbell CA, US
Andrew Carlson - Atherton CA, US
William H. Whitted - Woodside CA, US
Montgomery Sykora - Denver CO, US
Ken Krieger - Jackson WY, US
William Hamburgen - Palo Alto CA, US
Donald L. Beaty - Red Bank NJ, US
Gerald Aigner - Pfaeffikon, CH
Jimmy Clidaras - Los Altos CA, US
Assignee:
GOOGLE INC. - Mountain View CA
International Classification:
H02J 9/00
Abstract:
Apparatus and associated method and computer program products involve a highly efficient uninterruptible power distribution architecture to support modular processing units. As an illustrative example, a modular processing unit includes an integrated uninterruptible power system in which a PFC-boost AC-to-DC conversion occurs between the utility AC grid and the processing circuit (e.g., microprocessor) loads. In an illustrative data center facility, a power distribution architecture includes a modular array of rack-mountable processing units, each of which has processing circuitry to handle network-related processing tasks. Associated with each modular processing unit is an integrated uninterruptible power supply (UPS) to supply operating power to the network processing circuitry. Each UPS includes a battery selectively connectable across a DC bus, and a AC-to-DC rectifier that converts an AC input voltage to a single output voltage on the DC bus. The regulated DC bus voltage may be close to the battery's fully charged voltage.