Rechargeable battery packs and related methods
First Claim
1. A rechargeable battery pack configured to power an electronic device having a first battery,the rechargeable battery pack comprising:
- a second battery;
an external power input port configured to couple to an external power source;
a power output port for powering the electronic device; and
a first circuit comprising;
a first power path between the external power input port and the power output port of the rechargeable battery pack;
a second power path between the second battery and the power output port of the rechargeable battery pack; and
a power switch set;
wherein;
the first circuit is internal to the rechargeable battery pack;
the rechargeable battery pack, along with its second battery, external power input port, power output port, and first circuit, is external to and distinct from the electronic device;
the second battery of the rechargeable battery pack is supplemental to the first battery of the electronic device;
if the external power source is not coupled to the external power input port of the rechargeable battery pack;
the first power path is disabled by the power switch set; and
the second power path is enabled by the power switch set;
andif the external power source is coupled to the external power input port of the rechargeable battery pack;
the first power path is enabled by the power switch set; and
the second power path is disabled by the power switch set.
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0 Petitions
Accused Products
Abstract
In one embodiment, a rechargeable battery pack can be configured to power an electronic device having a first battery. The rechargeable battery pack can comprise a second battery supplemental to the first battery, an external power input configured to couple to an external power source, a power output for powering the electronic device. The rechargeable battery pack can also comprise a first circuit comprising a first power path between the external power input and the power output, a second power path between the second battery and the power output, and a power switch set. When the external power source is decoupled from the external power input, the first power path is disabled by the power switch set, and the second power path is enabled by the power switch set. When the external power source is coupled to the external power input, the first power path is enabled by the power switch set, and the second power path is disabled by the power switch set. Other examples and embodiments are described herein.
109 Citations
27 Claims
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1. A rechargeable battery pack configured to power an electronic device having a first battery,
the rechargeable battery pack comprising: -
a second battery; an external power input port configured to couple to an external power source; a power output port for powering the electronic device; and a first circuit comprising; a first power path between the external power input port and the power output port of the rechargeable battery pack; a second power path between the second battery and the power output port of the rechargeable battery pack; and a power switch set; wherein; the first circuit is internal to the rechargeable battery pack; the rechargeable battery pack, along with its second battery, external power input port, power output port, and first circuit, is external to and distinct from the electronic device; the second battery of the rechargeable battery pack is supplemental to the first battery of the electronic device; if the external power source is not coupled to the external power input port of the rechargeable battery pack; the first power path is disabled by the power switch set; and the second power path is enabled by the power switch set; and if the external power source is coupled to the external power input port of the rechargeable battery pack; the first power path is enabled by the power switch set; and the second power path is disabled by the power switch set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for providing a rechargeable battery pack configured to power an electronic device having a first battery, the method comprising:
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providing a second battery supplemental to the first battery; providing an external power input port configured to couple to an external power source; providing a power output port for powering the electronic device; providing a first circuit comprising; a first power path between the external power input port and the power output port of the rechargeable battery pack; a second power path between the second battery and the power output port of the rechargeable battery pack; and a power switch set; and providing a body of the rechargeable battery pack, the body comprising; the second battery, the external power input port, the power output port, and the first circuit; wherein; the rechargeable battery pack and the body are external to the electronic device; and providing the first circuit comprises; providing the power switch set to both enable the second power path and disable the first power path if the external power source is not coupled to the external power input port of the rechargeable battery pack; and providing the power switch set to both enable the first power path and disable the second power path if the external power source is coupled to the external power input port of the rechargeable battery pack. - View Dependent Claims (17, 18, 19, 20, 25, 26, 27)
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21. A rechargeable battery pack configured to power an electronic device having a first battery, the rechargeable battery pack comprising:
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a second battery supplemental to the first battery when the first battery is coupled to the electronic device; and a first circuit coupled to the second battery and configured to dynamically change a charge current supplied from an external power source to the second battery based on a power consumption level of the electronic device; wherein; the first circuit is internal to the rechargeable battery pack; the rechargeable battery pack, along with its second battery, and first circuit, is external to and distinct from the electronic device; the charge current comprises a first portion and a second portion less than the first portion; the first circuit comprises; a current sense subcircuit configured to measure a power consumption level of the electronic device; a switch having a first terminal electrically coupled to an output of the current sense subcircuit; a first path coupled to a second terminal of the switch and configured to transmit the first portion of the charge current to the second battery; and a second path configured to transmit the second portion of the charge current to the second battery when the external power source is coupled to the first circuit; when the power consumption level is greater than a second level; the switch is disabled via the output of the current sense subcircuit to restrict a transmission of the first portion of the charge current via the first path; and when the power consumption level is less than a first level; the switch is enabled via the output of the current sense subcircuit; and the first portion of the charge current is transmitted to the second battery via the first path. - View Dependent Claims (22, 23, 24)
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Specification