Energy-saving power adapter/charger
DC CAFCFirst Claim
Patent Images
1. A power device for supplying power to a portable rechargeable electronic device, the power device comprising:
- a first portion for receiving electrical input power from a source, the input having an input voltage;
a second portion for delivering electrical output power to the electronic device, the output power having a DC output voltage;
a connector located on the second portion and removably connectable with the electronic device; and
a switch assembly having a member movable to and between first and second positions corresponding to respective “
on” and
“
off”
states of the power device, wherein the power device receives the input power in the “
on”
state, and the power device draws no input power in the “
off”
state.
3 Assignments
Litigations
1 Petition
Reexamination
Accused Products
Abstract
An embodiment of the present invention is directed to a power device for an electronic device, such as a charger for a portable rechargeable device and/or an AC adapter. The power device includes switching circuitry for de-powering at least a portion of the power device when the electronic device is either not drawing power or is disconnected from the power device.
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Citations
58 Claims
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1. A power device for supplying power to a portable rechargeable electronic device, the power device comprising:
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a first portion for receiving electrical input power from a source, the input having an input voltage; a second portion for delivering electrical output power to the electronic device, the output power having a DC output voltage; a connector located on the second portion and removably connectable with the electronic device; and a switch assembly having a member movable to and between first and second positions corresponding to respective “
on” and
“
off”
states of the power device, wherein the power device receives the input power in the “
on”
state, and the power device draws no input power in the “
off”
state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A power device for supplying power to a portable rechargeable electronic device, the power device comprising:
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a first portion for receiving electrical input power from a source, the input having an input voltage; a second portion for delivering electrical output power to the electronic device, the output power having an output voltage; circuitry for converting the input power voltage to the output power voltage and for determining an “
off”
state of the circuitry;a connector located on the second portion and removably connectable with the electronic device; and a switch assembly having powered terminals, the switch assembly responsive to movement or at least a movable portion thereof to electrically connect the terminals and to provide an output signal to activate the circuitry to the “
on”
state,wherein the circuitry automatically turns the circuitry to the “
off”
state, the circuitry drawing no power when in the “
off”
state. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A power device for supplying power to an electronic device, the power device comprising:
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a first portion for receiving electrical input power from a source, the input having an input voltage; a second portion for delivering electrical output power to the electronic device, the output power having an output voltage; power circuitry for converting the input power voltage to the output power voltage and for determining an “
off”
state of the power device;switching circuitry operable to electrically activate the power circuitry to the “
on”
state; anda load sensing portion operable to sense one or more pulses and determine the power or load being drawn from the power device by the electronic device based thereon. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A power device for supplying power to a portable rechargeable electronic device, the power device comprising:
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a first portion for receiving electrical input power from a source, the input having an input voltage; a second portion for delivering electrical output power to the electronic device, the output power having an output voltage; power circuitry for converting the input power voltage to the output power voltage and for determining an “
off”
state of the circuitry, the power circuitry including a switching element;a connector located on the second portion and removably connectable with the electronic device; and switching circuitry, separate from the switching element, having powered terminals to change the power circuitry to the “
on”
state by causing the switching element to close, wherein the power circuitry or switching circuitry automatically turns the power circuitry to the “
off”
state by causing the switching element to open, the power circuitry drawing substantially no power when in the “
off”
state. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. A power device for supplying power to an electronic device, the power device comprising:
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a first portion for receiving electrical input power from a source, the input having an input voltage; a second portion for delivering electrical output power to the electronic device, the output power having a DC output voltage; a connector located on the second portion and removably connectable with the electronic device; a switch located on the second portion and longitudinally movable to and between first and second positions, the first position corresponding to an “
on”
state of the power device, wherein the power device receives the input power in the “
on”
state, and wherein the switch at least partially overlaps the connector when in the second position; andwherein the power device draws substantially no input power in the “
off”
state. - View Dependent Claims (52, 53, 54, 55)
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56. A power device for supplying power to a portable rechargeable electronic device, the power device comprising:
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a first portion for receiving electrical input power having an input voltage from the power outlet, the first portion including; prongs for electrical communication with a receptacle of a power outlet; converter circuitry for converting the input voltage into DC output voltage; and a housing from which the prongs extend, the converter circuitry disposed within the housing; a second portion for delivering electrical output power to the electronic device, the output power having the DC output voltage, and the second portion including a connector located on the second portion and removably connectable with the electronic device; a switch assembly having a member movable to and between first and second positions, corresponding to respective an “
on” and
“
off”
states of the power device, wherein the power device receives the input power in the “
on”
state, and the power device draws no input power in the “
off”
state; anda cable extending from the housing and between the first and second portions, the cable including a first pair of wires for delivering power to the electronic device and a second pair of wires for communicating with the switch assembly. - View Dependent Claims (57, 58)
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Specification