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US 2018/0026477 A1Published application
Power management system
AssigneeIntel Corporation
InventorsBill Carter, Brian Griffith, Viktor Vogman
Life of this patent
Estimating the term…
Abstract
A power supply system includes at least one power supply module and at least one redundant power supply module. A power supply module may include a charging resistor in parallel with an OR-ing device to keep all filter capacitors charged as long as at least one power supply module remains operational. This may avoid current spikes at turn on and may enable the redundant module to turn on without using soft start.
Claims17
A method comprising:
- controlling whether both of a first power supply and a second power supply are to output power to an output terminal by comparing a measured current to a first threshold value and a second threshold value, wherein the first power supply is an active power supply and the second power supply is a redundant power supply, and
- controlling whether the second power supply is to start-up using one or both of a soft start logic, and a charging capacitor in communication with the output terminal, wherein the charging capacitor is charged using the output terminal and wherein the second power supply is chargeable when disabled via the output terminal.
A method for selectively outputting power comprising:
- controlling, via a power distribution logic having an output terminal, whether both of a first power supply and a second power supply are to output power to the output terminal by comparing a measured current to a first threshold value and a second threshold value, wherein the first power supply is an active power supply and the second power supply is a redundant power supply, and
- controlling, via the power distribution logic, whether the second power supply is to start-up using one or both of a soft start logic, and a charging capacitor in communication with the output terminal, wherein the charging capacitor is charged using the output terminal and wherein the second power supply is chargeable when disabled via the output terminal.
Dependencies are inferred from the claim text.