Battery-powered apparatus for portable system
First Claim
1. A battery powered apparatus for a portable system, comprising:
- a power path switching circuit having a power path multiplexer, a logic controller and a voltage detector connected to an external power supply, an internal battery device, an external battery device and said portable system, wherein in response to inputting voltages of said external power supply, said internal battery device and said external battery device, said voltage detector commands said logic controller to determine which one of said external power supply, said internal battery device and said external battery device is electrically conducted to said portable system via said power path multiplexer; and
a rechargeable battery charging circuit, connected to said external power supply, said internal battery device, and said external battery device, having a charging arbitrator in response to said external power supply, said internal battery device and said external battery device for determining to recharge said internal battery device or said external battery device.
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Accused Products
Abstract
The invention presents a battery-powered apparatus with an internal battery device and an external battery device for a portable system. Meanwhile the battery powered apparatus, applied to a portable system, includes a power path switching circuit having a power path multiplexer, a logic controller and a voltage detector connected to an external power supply, an internal battery device, an external battery device and the portable system, wherein the voltage detector is in response to inputting voltages of the external power supply, the internal battery device and the external battery device, and then provides the logic controller with information for determining one of the external power supply, the internal battery device and the external battery device electrically conducted to the portable system via the power path multiplexer; and a rechargeable battery charging circuit connected to the external power supply, the internal battery device, and the external battery device; and having a charging arbitrator in response to the external power supply, the internal battery device and the external battery device for determining to recharge the internal battery device and the external battery device.
16 Citations
19 Claims
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1. A battery powered apparatus for a portable system, comprising:
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a power path switching circuit having a power path multiplexer, a logic controller and a voltage detector connected to an external power supply, an internal battery device, an external battery device and said portable system, wherein in response to inputting voltages of said external power supply, said internal battery device and said external battery device, said voltage detector commands said logic controller to determine which one of said external power supply, said internal battery device and said external battery device is electrically conducted to said portable system via said power path multiplexer; and a rechargeable battery charging circuit, connected to said external power supply, said internal battery device, and said external battery device, having a charging arbitrator in response to said external power supply, said internal battery device and said external battery device for determining to recharge said internal battery device or said external battery device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A battery powered apparatus for a portable system, comprising:
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a power path switching circuit having a power path multiplexer, a logic controller and a voltage detector connected to an external power supply, an internal battery device, an external battery device and said portable system, wherein in response to inputting voltages of said external power supply, said internal battery device and said external battery device, said voltage detector commands said logic controller to determine which one of said external power supply, said internal battery device and said external battery device is electrically conducted to said portable system via said power path multiplexer; and a rechargeable battery charging circuit, connected to said external power supply and said internal battery device, for recharging said internal battery device. - View Dependent Claims (16, 17, 18, 19)
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Specification