Patents by Inventor Pierluigi Sarti
Pierluigi Sarti has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11342788Abstract: A system and apparatus for generating alternating current voltage during power grid outages and methods for making and using the same. In various embodiments, the system can provide backup power within IT environments and other mission-critical facilities among other things.Type: GrantFiled: June 10, 2020Date of Patent: May 24, 2022Assignee: R-Stor Inc.Inventor: Pierluigi Sarti
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Patent number: 11284532Abstract: Some embodiments include a high voltage direct current (HVDC) power generator system for information technology (IT) racks. The HVDC power generator system can include a three-phase alternating current (AC) transformer having a primary winding and a plurality of secondary windings. A plurality of three-phase bridge rectifier circuits can be electrically coupled respectively to the plurality of secondary windings. The HVDC power generator system can include output terminals for powering its load. A first string of bridge rectifier circuits can be in series with each other and a first inductor. A second string of bridge rectifier circuits can be in series with each other and a second inductor. The first and second strings can be electrically coupled in parallel to the output terminals.Type: GrantFiled: March 20, 2020Date of Patent: March 22, 2022Assignee: Facebook Technologies, LLCInventor: Pierluigi Sarti
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Patent number: 10680461Abstract: Several embodiments include a power network system for a data center. The power network system can provide high voltage direct current (HVDC) power to server racks or any IT load racks type. For example, a HVDC converter circuit can provide the HVDC power by converting AC power. The power network system can also include multiple redundant power systems (e.g., a genset, a capacitive backup power system, a turbine-based generator system, or any combination thereof). The capacitive backup power system can provide HVDC power when the AC power fails and/or when the HVDC converter circuit can no longer provide sufficient power. The genset can be turned ON after the AC power fails. However, the genset may not provide stable power until sometime thereafter. Hence, the air turbine-based generator system can provide nearly-instant backup power once turned ON and provide supplemental energy in combination with the capacitive backup power system to smooth out transitions of power sources.Type: GrantFiled: July 30, 2018Date of Patent: June 9, 2020Assignee: Facebook, Inc.Inventor: Pierluigi Sarti
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Patent number: 10624229Abstract: Some embodiments include a high voltage direct current (HVDC) power generator system for information technology (IT) racks. The HVDC power generator system can include a three-phase alternating current (AC) transformer having a primary winding and a plurality of secondary windings. A plurality of three-phase bridge rectifier circuits can be electrically coupled respectively to the plurality of secondary windings. The HVDC power generator system can include output terminals for powering its load. A first string of bridge rectifier circuits can be in series with each other and a first inductor. A second string of bridge rectifier circuits can be in series with each other and a second inductor. The first and second strings can be electrically coupled in parallel to the output terminals.Type: GrantFiled: October 2, 2018Date of Patent: April 14, 2020Assignee: Facebook, Inc.Inventor: Pierluigi Sarti
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Publication number: 20190267811Abstract: A system for generation and distribution of high voltage direct current (HVDC) within a contained power domain named ‘POD’ and methods for making and using the same. The system and methods efficiently power Information Technology racks deployed to a data center environment, advantageously providing features and functions highly desirable for a specific application.Type: ApplicationFiled: February 28, 2019Publication date: August 29, 2019Inventors: Pierluigi SARTI, Giovanni COGLITORE
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Patent number: 10386421Abstract: Several embodiments perform battery backup unit (BBU) degradation testing. For example, a BBU testing system can be coupled to or part of a BBU. The BBU testing system can discharge the BBU by engaging a variable load to the BBU. The BBU testing system can monitor a discharge energy consumption over time as the BBU discharges until the discharge energy consumption reaches a specified amount of energy. The BBU testing system can determine a discharge time for the discharge energy consumption to reach the specified amount of energy. The BBU testing system can then compute a degradation state of the BBU based on the discharge time.Type: GrantFiled: September 14, 2015Date of Patent: August 20, 2019Assignee: Facebook, Inc.Inventors: Soheil Ebrahimzadeh, Pierluigi Sarti
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Patent number: 10238000Abstract: At least one embodiment of this disclosure includes a power shelf for serving a power zone within an IT equipment rack. The power shelf includes: a DC bus configured to provide DC power to rack-mounted equipment within the power zone; multiple pairs of backup battery units (BBUs) and power supply units (PSUs), wherein the multiple pairs include at least a redundant pair, such that voltage and power is supplied through the DC bus sufficient to power the rack-mounted equipment even when one of the multiple pairs is inoperative; and a power circuit, in each PSU of each of the multiple pairs, configured to rectify an AC phase from an external multi-phase AC power source, wherein the power circuit is configured to draw power from one of the BBUs paired to the PSU when the PSU fails to provide power sufficient to power the rack-mounted equipment.Type: GrantFiled: December 13, 2016Date of Patent: March 19, 2019Assignee: Facebook, Inc.Inventor: Pierluigi Sarti
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Patent number: 10123450Abstract: Some embodiments include a high voltage direct current (HVDC) power generator system for information technology (IT) racks. The HVDC power generator system can include a three-phase alternating current (AC) transformer having a primary winding and a plurality of secondary windings. A plurality of three-phase bridge rectifier circuits can be electrically coupled respectively to the plurality of secondary windings. The HVDC power generator system can include output terminals for powering its load. A first string of bridge rectifier circuits can be in series with each other and a first inductor. A second string of bridge rectifier circuits can be in series with each other and a second inductor. The first and second strings can be electrically coupled in parallel to the output terminals.Type: GrantFiled: May 12, 2016Date of Patent: November 6, 2018Assignee: Facebook, Inc.Inventor: Pierluigi Sarti
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Patent number: 10063092Abstract: Several embodiments include a power network system for a data center. The power network system can provide high voltage direct current (HVDC) power to server racks or any IT load racks type. For example, a HVDC converter circuit can provide the HVDC power by converting AC power. The power network system can also include multiple redundant power systems (e.g., a genset, a capacitive backup power system, a turbine-based generator system, or any combination thereof). The capacitive backup power system can provide HVDC power when the AC power fails and/or when the HVDC converter circuit can no longer provide sufficient power. The genset can be turned ON after the AC power fails. However, the genset may not provide stable power until sometime thereafter. Hence, the air turbine-based generator system can provide nearly-instant backup power once turned ON and provide supplemental energy in combination with the capacitive backup power system to smooth out transitions of power sources.Type: GrantFiled: October 2, 2015Date of Patent: August 28, 2018Assignee: Facebook, Inc.Inventor: Pierluigi Sarti
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Patent number: 9986658Abstract: Various embodiments include a power connection clip to electrically couple a power distribution board of an information technology (IT) equipment shelf to a plurality of power rails/buses in a server rack. The power connection clip can include a clip body having an inner portion and an outer portion, a shelf coupler, and an electrical conductor pair. The outer portion can include at least two clip fins separated from a central stump to form at least two cavities. The shelf coupler can couple the clip body to the IT equipment shelf. The electrical conductor pair can sandwich at least the inner portion of the clip body. The electrical conductor pair is adapted to carry high-voltage direct current (HVDC) voltage. The cavities can be covered with electrical conductors. The electrical conductors in the cavities can be adapted to carry IT-usable direct current (DC) voltage.Type: GrantFiled: December 3, 2015Date of Patent: May 29, 2018Assignee: Facebook, IncInventor: Pierluigi Sarti
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Publication number: 20170332510Abstract: Some embodiments include a high voltage direct current (HVDC) power generator system for information technology (IT) racks. The HVDC power generator system can include a three-phase alternating current (AC) transformer having a primary winding and a plurality of secondary windings. A plurality of three-phase bridge rectifier circuits can be electrically coupled respectively to the plurality of secondary windings. The HVDC power generator system can include output terminals for powering its load. A first string of bridge rectifier circuits can be in series with each other and a first inductor. A second string of bridge rectifier circuits can be in series with each other and a second inductor. The first and second strings can be electrically coupled in parallel to the output terminals.Type: ApplicationFiled: May 12, 2016Publication date: November 16, 2017Inventor: Pierluigi Sarti
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Publication number: 20170164505Abstract: Various embodiments include a power connection clip to electrically couple a power distribution board of an information technology (IT) equipment shelf to a plurality of power rails/buses in a server rack. The power connection clip can include a clip body having an inner portion and an outer portion, a shelf coupler, and an electrical conductor pair. The outer portion can include at least two clip fins separated from a central stump to form at least two cavities. The shelf coupler can couple the clip body to the IT equipment shelf. The electrical conductor pair can sandwich at least the inner portion of the clip body. The electrical conductor pair is adapted to carry high-voltage direct current (HVDC) voltage. The cavities can be covered with electrical conductors. The electrical conductors in the cavities can be adapted to carry IT-usable direct current (DC) voltage.Type: ApplicationFiled: December 3, 2015Publication date: June 8, 2017Inventor: Pierluigi Sarti
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Patent number: 9622373Abstract: Several embodiments include a server rack that accesses high voltage direct current (HVDC) power from a power source external to the server rack. The server rack can provide the HVDC power to two or more shelves in the server rack via at least a HVDC power rail pair. One or more DC-DC converters in a shelf of server rack can convert the HVDC power to a lower DC voltage usable by information technology (IT) load in the shelf. A power distribution board (e.g., in the shelf or in the server rack) can then provide the lower DC voltage to the IT load. The DC-DC converters can be blindly mated with the power distribution board and can be hot swappable from the power distribution board.Type: GrantFiled: November 13, 2015Date of Patent: April 11, 2017Assignee: Facebook, Inc.Inventor: Pierluigi Sarti
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Publication number: 20170098956Abstract: Several embodiments include a power network system for a data center. The power network system can provide high voltage direct current (HVDC) power to server racks or any IT load racks type. For example, a HVDC converter circuit can provide the HVDC power by converting AC power. The power network system can also include multiple redundant power systems (e.g., a genset, a capacitive backup power system, a turbine-based generator system, or any combination thereof). The capacitive backup power system can provide HVDC power when the AC power fails and/or when the HVDC converter circuit can no longer provide sufficient power. The genset can be turned ON after the AC power fails. However, the genset may not provide stable power until sometime thereafter. Hence, the air turbine-based generator system can provide nearly-instant backup power once turned ON and provide supplemental energy in combination with the capacitive backup power system to smooth out transitions of power sources.Type: ApplicationFiled: October 2, 2015Publication date: April 6, 2017Inventor: Pierluigi Sarti
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Publication number: 20170094829Abstract: At least one embodiment of this disclosure includes a power shelf for serving a power zone within an IT equipment rack. The power shelf includes: a DC bus configured to provide DC power to rack-mounted equipment within the power zone; multiple pairs of backup battery units (BBUs) and power supply units (PSUs), wherein the multiple pairs include at least a redundant pair, such that voltage and power is supplied through the DC bus sufficient to power the rack-mounted equipment even when one of the multiple pairs is inoperative; and a power circuit, in each PSU of each of the multiple pairs, configured to rectify an AC phase from an external multi-phase AC power source, wherein the power circuit is configured to draw power from one of the BBUs paired to the PSU when the PSU fails to provide power sufficient to power the rack-mounted equipment.Type: ApplicationFiled: December 13, 2016Publication date: March 30, 2017Inventor: Pierluigi Sarti
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Publication number: 20170074946Abstract: Several embodiments perform battery backup unit (BBU) degradation testing. For example, a BBU testing system can be coupled to or part of a BBU. The BBU testing system can discharge the BBU by engaging a variable load to the BBU. The BBU testing system can monitor a discharge energy consumption over time as the BBU discharges until the discharge energy consumption reaches a specified amount of energy. The BBU testing system can determine a discharge time for the discharge energy consumption to reach the specified amount of energy. The BBU testing system can then compute a degradation state of the BBU based on the discharge time.Type: ApplicationFiled: September 14, 2015Publication date: March 16, 2017Inventors: Soheil Ebrahimzadeh, Pierluigi Sarti
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Patent number: 9552031Abstract: At least one embodiment of this disclosure includes a power shelf for serving a power zone within an IT equipment rack. The power shelf includes: a DC bus configured to provide DC power to rack-mounted equipment within the power zone; multiple pairs of backup battery units (BBUs) and power supply units (PSUs), wherein the multiple pairs include at least a redundant pair, such that voltage and power is supplied through the DC bus sufficient to power the rack-mounted equipment even when one of the multiple pairs is inoperative; and a power circuit, in each PSU of each of the multiple pairs, configured to rectify an AC phase from an external multi-phase AC power source, wherein the power circuit is configured to draw power from one of the BBUs paired to the PSU when the PSU fails to provide power sufficient to power the rack-mounted equipment.Type: GrantFiled: April 11, 2014Date of Patent: January 24, 2017Assignee: Facebook, Inc.Inventor: Pierluigi Sarti
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Patent number: 9148068Abstract: A power supply system for data center racks comprises a main power circuit including a power factor correction (PFC) module and a bypass power circuit in parallel to the main power circuit. During normal operation, the main power circuit provides power output because the output voltage of the PFC module in the main power circuit under normal conditions is higher than the output voltage of the bypass power circuit. When the PFC module in the main power circuit fails, the bypass power circuit provides power output in bypass operation. The bypass power circuit provides power by rectifying a three-phase AC current to produce an output suitable for equipment that uses DC power.Type: GrantFiled: December 4, 2012Date of Patent: September 29, 2015Assignee: Facebook, Inc.Inventor: Pierluigi Sarti
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Publication number: 20150177808Abstract: At least one embodiment of this disclosure includes a power shelf for serving a power zone within an IT equipment rack. The power shelf includes: a DC bus configured to provide DC power to rack-mounted equipment within the power zone; multiple pairs of backup battery units (BBUs) and power supply units (PSUs), wherein the multiple pairs include at least a redundant pair, such that voltage and power is supplied through the DC bus sufficient to power the rack-mounted equipment even when one of the multiple pairs is inoperative; and a power circuit, in each PSU of each of the multiple pairs, configured to rectify an AC phase from an external multi-phase AC power source, wherein the power circuit is configured to draw power from one of the BBUs paired to the PSU when the PSU fails to provide power sufficient to power the rack-mounted equipment.Type: ApplicationFiled: April 11, 2014Publication date: June 25, 2015Applicant: Facebook. Inc.Inventor: Pierluigi Sarti
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Patent number: 9030810Abstract: A power distribution unit (PDU) mounted within the structure of a rack. A mechanical interface secures the PDU to a portion of the rack structure, such as within a post of the rack. The PDU is configured to provide electrical power to computing assets mounted in the rack. Securing the PDU within the rack structure allows the PDU to be placed in an unobtrusive position that does not occupy space between the rack posts, increasing the space between the rack posts available for mounting computing assets.Type: GrantFiled: October 31, 2012Date of Patent: May 12, 2015Assignee: Facebook, Inc.Inventors: Jon Brian Ehlen, Pierluigi Sarti