Multi-port power delivery
AssigneeTexas Instruments Incorporated
InventorsDeric Wayne Waters, Robert Mason Hanrahan
Life of this patent
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Abstract
A power provider circuit includes a plurality of power delivery controllers, a single stage power supply, and control circuitry. Each of the plurality of power delivery controllers is configured to provide power to a detachable device. The single stage power supply is configured to generate the power for provision to the detachable devices, and to provide the power at a plurality of selectable voltages. The control circuitry configured to select a given voltage of the plurality of selectable voltages to be made available via all of the power delivery controllers based on power utilization capabilities and other optional status indications reported by the detachable devices.
Claims20
An apparatus comprising:
- a first power delivery (PD) controller having a first communication circuit configured to receive a first utilization capability message from a first detachable device;
- a second PD controller having a second communication circuit configured to receive a second utilization capability message from a second detachable device;
- a control terminal configured to receive an output voltage range from a single stage power supply;
- and
- a processor coupled to the first and second PD controllers, the processor configured to select an output voltage from the output voltage range based on the first and second utilization capability messages, and configured to adjust, via the control terminal, the single stage power supply operable to supply the selected output voltage.
A power delivery (PD) controller comprising:
- a control terminal configured to receive an output voltage range from a single stage power supply;
- a communication circuit configured to receive a first utilization capability message from a first detachable device;
- and
- control circuitry coupled to the control terminal and the communication circuit, the control circuitry configured to:
- receive a second utilization capability message of a second detachable device from a second PD controller;
- and
- select, from the output voltage range, an output voltage compatible with the first and second utilization capability messages.
A multi-port charger comprising:
- a control terminal configured to receive an output voltage range from a single stage power supply;
- a first communication circuit configured to receive a first utilization capability message from a first detachable device;
- a second communication circuit configured to receive a second utilization capability message from a second detachable device;
- and
- control circuitry configured to select, from the output voltage range, an output voltage compatible with the first and second utilization capability messages.
Dependencies are inferred from the claim text.