Sourcing power from a battery or AC-DC converter of a power storage adapter
First Claim
1. A power storage adapter (PSA), comprising:
- a port for coupling the power storage adapter to a variable power bus;
a battery;
an AC-DC converter;
power distribution circuitry to supply electrical power from the power storage adapter at a plurality of output voltage levels; and
a PSA controller, wherein the PSA controller comprises circuitry to;
when the AC-DC converter is coupled to AC line power and a power consuming device is coupled to the power storage adapter over the variable power bus through the port, and responsive to a request for the power storage adapter to supply electrical power to the power consuming device at a particular voltage;
determine, based on an operating parameter of the power storage adapter, one of an output of the AC-DC converter or an output of the battery as a selected source for supplying electrical power to the power consuming device; and
cause the power distribution circuitry to supply electrical power from the selected source to the power consuming device over the variable power bus at the particular voltage;
wherein the particular voltage is one of the plurality of output voltage levels.
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Accused Products
Abstract
An external power storage adapter (PSA) may supply electrical power to a portable information handling system or other power consuming device. The power storage adapter may include an AC-DC converter, a battery, and intelligent power management functionality. A PSA controller may determine whether electrical power supplied by the power storage adapter should be sourced from the AC-DC converter or from the battery based on various operating parameters of the power storage adapter, such the temperature of the power storage adapter, the state of charge of the battery, the amount of electrical power being supplied by the AC-DC converter, or the amount of time that the AC-DC converter has been supplying electrical power. The power storage adapter may output power to a port of the portable information handling system, such as a USB Type-C port, over a variable power bus.
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Citations
20 Claims
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1. A power storage adapter (PSA), comprising:
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a port for coupling the power storage adapter to a variable power bus; a battery; an AC-DC converter; power distribution circuitry to supply electrical power from the power storage adapter at a plurality of output voltage levels; and a PSA controller, wherein the PSA controller comprises circuitry to; when the AC-DC converter is coupled to AC line power and a power consuming device is coupled to the power storage adapter over the variable power bus through the port, and responsive to a request for the power storage adapter to supply electrical power to the power consuming device at a particular voltage; determine, based on an operating parameter of the power storage adapter, one of an output of the AC-DC converter or an output of the battery as a selected source for supplying electrical power to the power consuming device; and cause the power distribution circuitry to supply electrical power from the selected source to the power consuming device over the variable power bus at the particular voltage; wherein the particular voltage is one of the plurality of output voltage levels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for supplying power to a power consuming device, comprising:
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when an AC-DC converter of a power storage adapter (PSA) is coupled to AC line power and a power consuming device is coupled to the power storage adapter over a variable power bus, and responsive to receiving a request for the power storage adapter to supply electrical power to the power consuming device at a particular voltage; determining, based on an operating parameter of the power storage adapter, one of an output of the AC-DC converter or an output of a battery within the power storage adapter as a selected source for supplying electrical power to the power consuming device; and causing power distribution circuitry within the power storage adapter to supply electrical power from the selected source to the power consuming device over the variable power bus at the particular voltage; wherein the particular voltage is one of a plurality of output voltage levels at which electrical power is supplied by the power distribution circuitry within the power storage adapter. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A system, comprising:
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an information handling system including an internal port for coupling the information handling system to a variable power bus; and a power storage adapter (PSA) comprising; a PSA port for coupling the power storage adapter to the information handling system over the variable power bus; a battery; an AC-DC converter; power distribution circuitry to supply electrical power from the power storage adapter at a plurality of output voltage levels; and a PSA controller, wherein the PSA controller comprises circuitry to; when the AC-DC converter is coupled to AC line power and the information handling system is coupled to the power storage adapter over the variable power bus through the port, and responsive to a request for the power storage adapter to supply electrical power to the information handling system at a particular voltage; determine, based on an operating parameter of the power storage adapter, one of an output of the AC-DC converter or an output of the battery as a selected source for supplying electrical power to the information handling system; and cause the power distribution circuitry to supply electrical power from the selected source to the information handling system over the variable power bus at the particular voltage; wherein the particular voltage is one of the plurality of output voltage levels. - View Dependent Claims (19, 20)
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Specification