Power management systems for accepting adapter and solar power in electronic devices
First Claim
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1. A power management system for managing power from a solar panel and a power adapter to power an electronic device, the power management system comprising:
- a power stage configured to process electricity from a solar panel and from a power adapter to power an electronic device; and
a controller coupled to the power stage, the controller implementing one or more control loops to control the power stage based on whether the solar panel, the power adapter, or both are coupled to the power stage,wherein responsive to receiving power from the solar panel, an input voltage of the power stage is adjusted at a first rate and a first step size based on an output power from the solar panel and at a second rate and a second step size based on an output power from the power stage.
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Abstract
The disclosed embodiments provide a power management system that supplies power to components in an electronic device. The power management system includes a system microcontroller (SMC) and a charger. During operation, the power management system accepts power from at least one of a power adapter and a solar panel. Next, the power management system supplies the power to components in the electronic device without using a converter circuit between the solar panel and the power management system.
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Citations
21 Claims
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1. A power management system for managing power from a solar panel and a power adapter to power an electronic device, the power management system comprising:
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a power stage configured to process electricity from a solar panel and from a power adapter to power an electronic device; and a controller coupled to the power stage, the controller implementing one or more control loops to control the power stage based on whether the solar panel, the power adapter, or both are coupled to the power stage, wherein responsive to receiving power from the solar panel, an input voltage of the power stage is adjusted at a first rate and a first step size based on an output power from the solar panel and at a second rate and a second step size based on an output power from the power stage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for supplying power to an electronic device, comprising:
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using a power stage to process power received by the power stage to power the electronic device, wherein the power stage is configured to receive power from a solar panel and from a power adapter; responsive to receiving power from a solar panel, adjusting an input voltage of the power stage at a first rate and a first step size based on an output power from the solar panel and at a second rate and a second step size based on an output power from the power stage. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A non-transitory computer readable medium comprising instructions stored thereon to cause a computer system to:
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use a power stage to process power received by the power stage to power the computer system, wherein the power stage is configured to receive power from a solar panel and from a power adapter; adjust an input voltage of the power stage, responsive to receiving power from a solar panel, at a first rate and a first step size based on an output power from the solar panel and at a second rate and a second step size based on an output power from the power stage; and power a component of an electronic device using power received from at least one of the solar panel and the power adapter. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification