A highly stable one-line communication circuit and its working method
A communication circuit and high-stability technology, applied in the field of communication circuits, can solve the problems of incompatibility with negative pressure, low communication rate, and failure of normal communication of discharge switch parts, etc., and achieve the effect of high stability and improved communication rate
Active Publication Date: 2022-05-17
浙江高泰昊能科技有限公司
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[0003] When the existing lithium battery communicates with the load, the communication is carried out by controlling the closing of the switching element between the lithium battery and the load. When there is a problem with the lithium battery, the switching element needs to be disconnected. At this time, the lithium battery and the load cannot be realized. Communication, resulting in a low communication rate, and normal communication cannot be performed after the discharge switch is disconnected. Currently, the one-line communication method is used to connect the lithium battery and the load. A certain negative pressure, when the negative pressure reaches -10V, the entire PTS communication circuit cannot work, it is not compatible with different negative pressures, and the stability is not high
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.
[0026] It should also be understood that the terminology used ...
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The embodiment of the present invention discloses a high-stability one-line communication circuit and its working method. The circuit includes capacitor components connected in parallel at both ends of the switching element between the first communication terminal and the second communication terminal, a stability enhancement unit and a driving unit, the stability enhancement unit is connected to the drive unit, the drive unit and the capacitor assembly are respectively connected to the first communication terminal, and the drive unit and the capacitor assembly are respectively connected to the second communication terminal; when the switch between the first communication terminal and the second communication terminal When the element is disconnected, the driving unit works, the driving unit, the capacitor assembly and the first communication terminal form a loop, the first communication terminal communicates with the second communication terminal, and the stability enhancing unit maintains the floating voltage between the second communication terminal and the ground. The embodiment of the present invention enables effective communication even when the switching element between the lithium battery and the load is disconnected, increases the communication rate, and realizes that the entire circuit is compatible with different negative pressures with high stability by means of the stability enhancement unit.
Description
technical field [0001] The invention relates to the technical field of communication circuits, in particular to a high-stability one-line communication circuit and a working method thereof. Background technique [0002] Lithium battery protection boards are used in a large amount on the market, and cost reduction is the trend. Automakers use single-wire communication instruments to display battery status. It is necessary to reduce costs and have good stability and reliability. [0003] When the existing lithium battery communicates with the load, the communication is carried out by controlling the closing of the switching element between the lithium battery and the load. When there is a problem with the lithium battery, the switching element needs to be disconnected. At this time, the lithium battery and the load cannot be realized. Communication, resulting in a low communication rate, and normal communication cannot be performed after the discharge switch is disconnected. C...
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IPC IPC(8): H02J9/06
CPCH02J9/061Y02E60/10
Inventor 张伟峰申传洋程亚兵
Owner 浙江高泰昊能科技有限公司