Portable battery charger
First Claim
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1. A battery charger comprising:
- a housing;
a power source disposed within said housing;
an integrated circuit disposed within said housing in electrical contact with said power source;
wherein said integrated circuit comprises;
at least one light emitting diode;
a differential op amp;
a DC-DC converter;
a comparator; and
a sensor that monitors current flow;
a means for attaching said charger to a wireless device which is in electrical contact with said integrated circuit such that a charge current is delivered to said wireless device.
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Accused Products
Abstract
Disclosed is a portable charger adapted for use with wireless devices. Integrated circuitry controls the amount of current charge delivered to the primary power source of a wireless device through an adaptor. The current charge is delivered by a power source located within an attractive housing. A light emitting diode coupled to the integrated circuit indicates whether the wireless device is actively being charged.
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Citations
26 Claims
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1. A battery charger comprising:
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a housing;
a power source disposed within said housing;
an integrated circuit disposed within said housing in electrical contact with said power source;
wherein said integrated circuit comprises;
at least one light emitting diode;
a differential op amp;
a DC-DC converter;
a comparator; and
a sensor that monitors current flow;
a means for attaching said charger to a wireless device which is in electrical contact with said integrated circuit such that a charge current is delivered to said wireless device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of charging a wireless device comprising the steps of:
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providing a battery charger comprising;
a housing;
a power source disposed within said housing;
an integrated circuit disposed within said housing in electrical contact with said power source;
wherein said integrated circuit comprises;
at least one light emitting diode;
a differential op amp;
a boost converter;
a push-pull comparator; and
a sensor that monitors current flow;
attaching said battery charger to a wireless device;
wherein a means for attaching said charger to a wireless device is in electrical contact with said integrated circuit such that a charge current is delivered to said wireless device; and
charging said wireless device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A wireless device charging system comprising:
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a battery charger comprising;
a housing;
a power source disposed within said housing;
an integrated circuit disposed within said housing in electrical contact with said power source comprising;
at least one light emitting diode;
a differential op amp;
a boost or SEPIC DC-DC converter;
a comparator; and
a sensor that monitors current flow;
a means for attaching said charger to a wireless device which is in electrical contact with said integrated circuit such that a charge current is delivered to said wireless device; and
a wireless device comprising at least one rechargeable power source. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification