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Power path management device, method and system

A path management and power technology, applied in signal transmission system, electrical signal transmission system, hot-swappable power/load, etc., can solve the problems of call drop, time-consuming, inconvenient, etc., and achieve the effect of reducing switching time

Inactive Publication Date: 2015-09-09
FAIRCHILD SEMICON SUZHOU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Batteries have to be replaced or recharged, which is inconvenient and time consuming
For example, in the case of mobile phones, a low battery can cause calls to be dropped

Method used

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  • Power path management device, method and system
  • Power path management device, method and system
  • Power path management device, method and system

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Embodiment Construction

[0015] In general, the present application provides systems and methods for battery power path management for multiple batteries. The system provides the ability to deliver power to a device from one or more batteries and the ability to charge one or more batteries. The battery voltage monitoring circuitry may determine whether the first battery voltage has dropped below a threshold indicative of a low battery condition. In response to this determination, the system may switch the power path to allow delivery of power from the second battery to the device. The system then also begins charging the first battery. Battery identification (ID) detection may also be provided so that the system can determine the presence of the battery and reduce switchover time, which may also provide the ability to hot swap the battery. In addition, reverse current blocking (RCB) protection is provided between each battery and between the device to be powered and each battery. The RCB prevents c...

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PUM

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Abstract

Devices, systems and methods are provided for multiple battery power path management. The device may include a first battery port configured to couple to a first battery; a second battery port configured to couple to a second battery; an output voltage port configured to couple to a device to be powered; a battery selection port configured to couple to the device to be powered; a control circuit configured to select one of the first battery and the second battery as a power source battery, the selection based on a signal received at the battery selection port; and a first switch configured to selectively couple the first battery port or the second battery port to the output voltage port, the selective coupling based on a first switching signal generated by the control circuit in response to the selection of the power source battery.

Description

technical field [0001] The present application relates to a battery power path management system, in particular, to a power path management device, method and system for multiple batteries. Background technique [0002] Many electronic devices, especially portable devices such as cell phones, digital cameras, media players, Global Positioning System (GPS) receivers, and portable game consoles, are powered by batteries. The battery will eventually die, forcing a break in the use of the device. The batteries have to be replaced or recharged, which is inconvenient and time consuming. For example, in the case of mobile phones, a low battery can cause calls to drop. Contents of the invention [0003] In general, the present application provides battery power path management devices, systems and methods for multiple batteries. The system provides the ability to deliver power to a device from one or more batteries and the ability to charge one or more batteries. The battery v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J7/36
CPCY10T307/696H02J7/36H02J1/108H02J7/34H02J1/001
Inventor N·孙E·张
Owner FAIRCHILD SEMICON SUZHOU