Power supply with zero power consumption capability
AssigneeApple Inc.
InventorsJeffrey J. Terlizzi, Stanley Rabu, Wendell Sander, Jahan Minoo, Nicholas Ainsley Sims
Life of this patent
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Abstract
Power supply devices are provided that can include power regulating circuitry for regulating (e.g., transforming or converting) electric power to be passed to an electronic device. A power supply device can also include control circuitry coupled with the regulating circuitry. The control circuitry can determine when the power supply device is coupled with an electronic device. The control circuitry can control the operation of the regulating circuitry based on whether or not the power supply device is coupled with the electronic device.
Claims30
A power supply device comprising:
- regulating circuitry operable to receive an electric power signal and output a regulated electric power signal;
- and
- control circuitry coupled with the regulating circuitry and operable to selectively enable the regulating circuitry when the power supply device is coupled with an electronic device.
A method for providing electric power to an electronic device, the method comprising:
- determining when a power supply device is coupled with the electronic device;
- and
- selectively enabling power regulating circuitry based on the determining.
A power supply device comprising:
- an AC-to-DC converter operable to receive an electric power signal with an alternating current and output an electric power signal with a direct current;
- and
- control circuitry coupled with the converter and operable to selectively enable the converter when the power supply device is coupled with an electronic device.
A method for providing electric power to an electronic device, the method comprising:
- determining when a power supply device having an AC-to-DC converter is coupled with the electronic device;
- and
- selectively enabling the AC-to-DC converter based on the determining.
Dependencies are inferred from the claim text.