Portable battery charger for a mobile device
First Claim
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1. A communication apparatus, comprising:
- a mobile communication device having a rechargeable battery; and
a portable battery recharging unit detachably coupled to the mobile communication device for recharging the rechargeable battery, the portable battery recharging unit comprising;
a housing;
a battery fitted within the housing;
a switching regulator coupled to the battery for generating a charging output; and
a charging interface coupling the charging output from the switching regulator to the rechargeable battery within the mobile communication device in order to recharge the rechargeable battery;
wherein the housing of the portable battery recharging unit includes a battery cover which covers a battery compartment that holds the battery, wherein the battery is removable from the portable battery recharging unit by detaching the battery cover from the housing; and
wherein the switching regulator is configured to operate in two modes, a current limiting mode and a constant voltage mode.
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Abstract
A portable battery charger for a mobile device having a rechargeable battery includes battery contacts, a switching regulator, and a charger interface. The battery contacts are configured to receive a battery having a low-voltage value. The switching regulator is coupled to the battery contacts and configured to draw the low-voltage value from the battery and convert the low-voltage value to a charger output. The charger interface is configured to electrically engage the mobile device and is further configured to couple the charger output from the switching regulator to the rechargeable battery in the mobile device.
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Citations
31 Claims
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1. A communication apparatus, comprising:
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a mobile communication device having a rechargeable battery; and a portable battery recharging unit detachably coupled to the mobile communication device for recharging the rechargeable battery, the portable battery recharging unit comprising; a housing; a battery fitted within the housing; a switching regulator coupled to the battery for generating a charging output; and a charging interface coupling the charging output from the switching regulator to the rechargeable battery within the mobile communication device in order to recharge the rechargeable battery; wherein the housing of the portable battery recharging unit includes a battery cover which covers a battery compartment that holds the battery, wherein the battery is removable from the portable battery recharging unit by detaching the battery cover from the housing; and
wherein the switching regulator is configured to operate in two modes, a current limiting mode and a constant voltage mode. - View Dependent Claims (2, 3)
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4. A communication apparatus, comprising:
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a mobile communication device having a rechargeable battery; and a portable battery recharging unit detachably coupled to the mobile communication device for recharging the rechargeable battery, the portable battery recharging unit comprising; a housing; a battery fitted within the housing; a switching regulator coupled to the battery for generating a charging output; and a charging interface coupling the charging output from the switching regulator to the rechargeable battery within the mobile communication device in order to recharge the rechargeable battery; wherein the housing of the portable battery recharging unit includes a battery cover which covers a battery compartment that holds the battery, wherein the battery is removable from the portable battery recharging unit by detaching the battery cover from the housing; and
wherein the portable battery recharging unit further comprises;
a controller, coupled to the charger interface and the switching regulator, for controlling the operation of the switching regulator based on one or more signals received from the mobile communication device. - View Dependent Claims (5, 6)
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7. A communication apparatus, comprising:
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a mobile communication device having a rechargeable battery; and a portable battery recharging unit detachably coupled to the mobile communication device for recharging the rechargeable battery, the portable battery recharging unit comprising; a housing; a battery fitted within the housing; a switching regulator coupled to the battery for generating a charging output; and a charging interface coupling the charging output from the switching regulator to the rechargeable battery within the mobile communication device in order to recharge the rechargeable battery; wherein the housing of the portable battery recharging unit includes a battery cover which covers a battery compartment that holds the battery, wherein the battery is removable from the portable battery recharging unit by detaching the battery cover from the housing; and
wherein the portable battery recharging unit further comprises;
a controller, coupled to the battery and the switching regulator, for turning on or off the switching regulator based on the voltage level of the battery. - View Dependent Claims (8, 9)
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10. A method of charging a rechargeable battery in a mobile communication device using a portable battery charger, comprising the steps of:
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physically and electrically coupling the portable battery charger to the mobile communication device; receiving a low voltage source of energy from a battery within the portable battery charger; converting the low voltage source of energy to a charging output using a switching regulator in the portable battery charger; recharging the rechargeable battery by applying the charging output to the rechargeable battery through the electrical coupling of the portable battery charger and the mobile communication device; and operating the switching regulator in a current limiting mode until a threshold voltage is measured on the rechargeable battery and then operating the switching regulator in a constant voltage mode thereafter. - View Dependent Claims (11, 12, 13, 14)
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15. An apparatus for charging a rechargeable battery in a mobile communication device using a portable battery charger, comprising:
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means for physically and electrically coupling the portable battery charger to the mobile communication device; means for receiving a low voltage source of energy from a battery within the portable battery charger; means for converting the low voltage source of energy to a charging output; and means for recharging the rechargeable battery by applying the charging output to the rechargeable battery through the electrical coupling of the portable battery charger and the mobile communication device; and means for operating a switching regulator based upon one or more signals received from the mobile communication device. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. An apparatus, comprising:
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a mobile device having a rechargeable battery; and a battery charging device detachably connected to the mobile device, the battery charging device including; battery contacts configured to receive a battery; a switching regulator coupled to the battery contacts and configured to draw a voltage from the battery and convert the voltage to a charger output; and a charger interface configured to electrically engage the mobile device and further configured to couple the charger output from the switching regulator to the rechargeable battery in the mobile device, wherein the switching regulator is configured to operate in a first mode and a second mode, wherein the first mode is a current limiting mode. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification