Overnight power adapter
AssigneeIntel Corporation
InventorsALEXANDER UAN-ZO-LI, CHRISTINE KIM, THYAGARAJAN SRINIVASAN, GEORGE DASKALAKIS
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Abstract
Techniques and devices related to power adapters for mobile devices and, in particular, small form factor power adapters that allow a voltage droop during a power pulse exceeding a maximum output of the power adapter are discussed. For example, a small form factor and low voltage power adapter may include an adapter output power protection control that limits an output of the power adapter in response to a power pulse exceeding a maximum output of the power adapter.
Claims21
A voltage adapter to power a mobile device, the voltage adapter comprising:
- a switch and a transformer coupled to the switch;
- an output rectifier coupled to the transformer;
- an output decoupler capacitor coupled to the output rectifier and configured to provide a direct current output from the voltage adapter;
- and
- an adapter output power protection controller coupled to the switch and configured to provide a maximum output power or current to the output decoupler capacitor in response to a power pulse exceeding a maximum output of the voltage adapter.
A voltage adapter to power a mobile device, the voltage adapter comprising:
- an input rectifier configured to convert an alternating current input to a direct current (DC);
- a DC-DC converter configured to convert the DC to an output DC;
- and
- an adapter output power protection controller coupled to the DC-DC converter and configured to control the DC-DC converter to provide a maximum output power or a maximum output current in response to a power pulse on the voltage adapter exceeding a maximum output of the voltage adapter.
A mobile device-implemented method for a mobile device connected to a voltage adapter, the method comprising:
- implementing a power boost operation for a first duration, wherein the first duration is not greater than a maximum power boost duration associated the voltage adapter;
- restricting use of a second power boost operation for at least a predetermined duration, wherein the predetermined duration is associated with a recharge time associated with the voltage adapter;
- and
- implementing the second power boost operation after the predetermined duration and for a second duration not greater than the maximum power boost duration.
Dependencies are inferred from the claim text.