Power adapter with power saving mode and power-saving method for power adapter
First Claim
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1. A power adapter with a power saving mode comprising:
- a power adaptation unit comprises;
a pulse width modulation control unit, comprising a decoding-encoding subunit; and
a power saving signal receiver electrically connected to the pulse width modulation control unit;
a power line electrically connected to an electronic apparatus having a battery and the power saving signal receiver; and
a grounding line electrically connected to the power adaptation unit and the electronic apparatus,wherein when the power adapter enters a working status, the power adapter charges the battery;
after the power saving signal receiver receives a battery fully-charged signal sent from the electronic apparatus through the power line, the power adapter enters a sleeping status, andwherein when the power adapter enters the sleeping status, if the battery needs to be charged by the power adapter, the electronic apparatus informs the pulse width modulation control unit through the power line, the power saving signal receiver, and the decoding-encoding subunit so that the power adapter enters the working status and charges the battery.
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Abstract
A power adapter with a power saving mode includes a power adaptation unit. The power adaptation unit includes a pulse width modulation control unit and a power saving signal receiver. The power saving signal receiver is electrically connected to the pulse width modulation control unit. When the power adapter enters a working status, the power adapter charges a battery. After the power saving signal receiver receives a battery fully-charged signal, the power adapter enters a sleeping status.
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Citations
7 Claims
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1. A power adapter with a power saving mode comprising:
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a power adaptation unit comprises; a pulse width modulation control unit, comprising a decoding-encoding subunit; and a power saving signal receiver electrically connected to the pulse width modulation control unit; a power line electrically connected to an electronic apparatus having a battery and the power saving signal receiver; and a grounding line electrically connected to the power adaptation unit and the electronic apparatus, wherein when the power adapter enters a working status, the power adapter charges the battery;
after the power saving signal receiver receives a battery fully-charged signal sent from the electronic apparatus through the power line, the power adapter enters a sleeping status, andwherein when the power adapter enters the sleeping status, if the battery needs to be charged by the power adapter, the electronic apparatus informs the pulse width modulation control unit through the power line, the power saving signal receiver, and the decoding-encoding subunit so that the power adapter enters the working status and charges the battery. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A power-saving method applied to a power adapter with a power saving mode and an electronic apparatus, wherein the power adapter comprises a power saving signal receiver and a pulse width modulation control unit having a decoding-encoding subunit, the power-saving method comprising:
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a. when the power adapter enters a working status, the power adapter charging a battery of the electronic apparatus; b. when the battery is fully charged, the electronic apparatus sending a battery fully-charged signal to the power adapter through a power line; c. after the power adapter receives the battery fully-charged signal, the power adapter entering a sleeping status; and d. when the power adapter enters the sleeping status, if the battery needs to be charged by the power adapter, the electronic apparatus informs the pulse width modulation control unit through the power line, the power saving signal receiver, and the decoding-encoding subunit so that the power adapter enters the working status and charges the battery.
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Specification