A battery current management device
A technology for managing devices and battery current, applied in secondary batteries, secondary battery repair/maintenance, circuits, etc., can solve the problems of complex peripheral circuits, complex control, and high cost, and achieve simplified complexity, simple control, and low power consumption. consumption effect
Active Publication Date: 2017-02-08
BYD SEMICON CO LTD
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Problems solved by technology
However, this solution uses different peripheral circuit modules to manage different parameters, the peripheral circuit is complex, the control is also relatively complicated, and the cost is high and the power consumption is large.
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Embodiment Construction
[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0022] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicat...
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The invention discloses a battery current management device which comprises a current sampling module, a processing module and a controller, wherein the current sampling module is used for acquiring current of a battery; the processing module is connected with the current sampling module; the processing module is used for generating a sampling signal, an awakening signal and an over-current protection signal respectively according to acquired current; the controller is connected with the processing module; the controller is used for controlling whether the operation of awakening or over-current protection is performed according to one or more of the sampling signal, the awakening signal and the over-current protection signal. The battery current management device disclosed by the invention adopts one circuit module to achieve the battery current management function, namely, control on the current is achieved in a function multiplex mode, the complexity of a circuit structure is reduced, the control is simple, and the device has the advantages of low cost and low power consumption.
Description
technical field [0001] The invention relates to the field of power battery management, in particular to a battery current management device. Background technique [0002] In power battery management, current management is an important management parameter, which generally includes: charging overcurrent protection, discharging overcurrent protection, charging and discharging current sampling, and system wake-up. When charging and discharging, it is necessary to monitor the specific size of the current. If the current is too large, it will cause damage to the battery and the external system, which requires a charge-discharge over-current protection function. However, the charging and discharging current is very small, and when it is not working, in order to reduce power consumption, the system needs to enter the sleep state, and when it needs to enter the working state again, it needs a wake-up function. The design scheme of prior art mainly contains: [0003] Option 1: Simp...
Claims
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Login to View More IPC IPC(8): H01M10/42
CPCH01M10/425H01M2010/4271Y02E60/10
Inventor 李俊朱祥何志强杨云
Owner BYD SEMICON CO LTD