ENERGY EFFICIENT AND FAST CHARGE MODES OF A RECHARGEABLE BATTERY
First Claim
1. A method of providing power to an electronic device, comprising:
- upon detecting a battery reaching a high threshold state of charge, entering a first power state by switching a circuit to disable current at an AC-to-DC adapter to enable the battery to provide primary power to the electronic device;
upon detecting the battery reaching a low threshold state of charge, entering a second power state by switching the circuit to provide a high current at the AC-to-DC adapter to charge the battery and provide primary power to the electronic device.
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Accused Products
Abstract
A method of providing power to an electronic device in an energy-efficient manner includes transitioning between power states corresponding to charging and discharging a battery. The state of charge of the battery is detected. Upon detecting a high threshold state of charge, an external power source such as an AC-to-DC adapter is disabled, and the battery to provides primary power to the electronic device. Upon a low threshold state of charge, the AC-to-DC adapter is controlled to provide a high current output to charge the battery and provide primary power to the electronic device. The power states, when cycled over time based on the state of the battery, provide for an energy-efficient method of powering the electronic device.
268 Citations
21 Claims
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1. A method of providing power to an electronic device, comprising:
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upon detecting a battery reaching a high threshold state of charge, entering a first power state by switching a circuit to disable current at an AC-to-DC adapter to enable the battery to provide primary power to the electronic device; upon detecting the battery reaching a low threshold state of charge, entering a second power state by switching the circuit to provide a high current at the AC-to-DC adapter to charge the battery and provide primary power to the electronic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus for providing power to an electronic device, comprising:
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a power circuit configured to enable and disable power to the electronic device from a battery and an AC-to-DC adapter; a controller coupled to the power circuit and configured to transition between first and second states, the first state including disabling current at the AC-to-DC adapter and enabling the battery to provide primary power to the electronic device in response to detecting a high threshold state of charge, the second state including enabling the AC-to-DC adapter to provide primary power to the electronic device and charging the battery in response to detecting a low threshold state of charge.
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21. A system for providing power to an electronic device, comprising:
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a battery configured to provide power to an electronic device; an AC-to-DC adapter configured to provide power to the electronic device; and a controller configured to transition between first and second states, the first state including disabling current at the AC-to-DC adapter and enabling the battery to provide primary power to the electronic device in response to detecting a high threshold state of charge, the second state including enabling the AC-to-DC adapter to provide primary power to the electronic device and charging the battery in response to detecting a low threshold state of charge.
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Specification