HIGH VOLTAGE DEDICATED CHARGING PORT
First Claim
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1. An electronic circuit comprising:
- a power bus that can be connected to an external device;
a signal bus that can be connected to the external device; and
circuitry connected to the signal bus to assert an electrical configuration, from among a plurality of electrical configurations, on the signal bus in response to a predetermined electrical configuration detected on the signal bus, each of the electrical configurations associated with a voltage level,wherein the power bus receives a voltage from the external device at a voltage level that is substantially equal to the voltage level associated with the electrical configuration asserted on the signal bus by the circuitry.
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Abstract
Circuitry in an electronic device may be attached to external device, such as a power supply, to receive a voltage at a desired voltage level from the external device. The circuitry may assert one of several electrical configurations on the cabling that electrically connects the portable device to the external device to indicate to the external device a desired voltage level.
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Citations
30 Claims
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1. An electronic circuit comprising:
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a power bus that can be connected to an external device; a signal bus that can be connected to the external device; and circuitry connected to the signal bus to assert an electrical configuration, from among a plurality of electrical configurations, on the signal bus in response to a predetermined electrical configuration detected on the signal bus, each of the electrical configurations associated with a voltage level, wherein the power bus receives a voltage from the external device at a voltage level that is substantially equal to the voltage level associated with the electrical configuration asserted on the signal bus by the circuitry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method in a circuit comprising:
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detecting when a power bus and a signal bus of the circuit are connected to an external device; detecting that the external device is capable of outputting a selectable voltage level; asserting a first electrical configuration, from among a plurality of electrical configurations, on the signal bus, each of the electrical configurations being associated with a voltage level; and receiving a voltage on the power bus, from the external device, at a first voltage level that is substantially equal to the voltage level associated with the first electrical configuration. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A circuit in an electronic device comprising device electronics, the circuit comprising:
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a power bus that can be connected to an external device; a signal bus that can be connected to the external device; detection circuitry connected to the signal bus to detect an electrical configuration on the signal bus; and configuration circuitry to assert an electrical configuration on the signal bus in response to an electrical configuration detected on the signal bus by the detection circuitry, wherein a voltage level of a voltage, from the external device, on the power bus varies depending on the electrical configuration asserted on the signal bus by the configuration circuitry. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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25. A circuit comprising:
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first means for receiving a voltage on a power bus from an external device; second means for establishing an electrical connection between the circuit and the external device; and third means for asserting a first electrical configuration, from among a plurality of electrical configurations, on a signal bus, each of the electrical configurations being associated with a voltage level, wherein the first means receives a voltage on the power bus, from the external device, at a first voltage level that is substantially equal to the voltage level associated with the first electrical configuration. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification