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Battery charge and discharge circuit

A charging and discharging circuit and battery technology, applied in battery circuit devices, circuit devices, battery load switching and other directions, can solve problems such as low work efficiency and poor reliability, and achieve the problem of not easy to dissipate heat, good reliability, and poor reliability. Effect

Active Publication Date: 2015-08-19
ANHUI DYNAMIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide an efficient, safe, parallel-connectable, and heat-dissipating battery charging and discharging circuit; it prevents the battery from reversely discharging the power supply when the power supply is not working by setting an anti-reverse charging switch tube, and avoids charging and discharging in the charging circuit. The use of energy-consuming components in the battery improves the working efficiency of the entire battery charging and discharging circuit; at the same time, heat dissipation problems are not easy to occur; in the charging switch tube, discharge switch tube, and anti-reverse charge switch tube, any single device short circuit or damage will not cause charging. The straight-through of the discharge circuit, so the reliability of the entire battery charge and discharge circuit is better; to solve the technical problems of low working efficiency and poor reliability of the existing battery charge and discharge circuit

Method used

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Embodiment Construction

[0045] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced.

[0046] In the figures, structurally similar units are denoted by the same reference numerals.

[0047] Please refer to figure 2 , figure 2 It is a specific circuit diagram of the first preferred embodiment of the battery charging and discharging circuit of the present invention. The battery charging and discharging circuit in this preferred embodiment includes a power supply, a charging branch 21 , a discharging branch 22 and a protection branch 23 . The charging branch 21 is used to control the charging operation of the battery BAT and the magnitude of the charging current; the discharging branch 22 is used to control the discharging operation of the battery BAT and the magnitude of the discharging current; the protection circuit 23 is used to protect the battery charging and discharging circu...

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Abstract

A battery charging and discharging circuit comprises a power supply, a charging branch circuit (21), a discharging branch circuit (22), and a protective branch circuit (23). The battery charging and discharging circuit does not use an energy consumption element, and accordingly, the working efficiency of the whole battery charging and discharging circuit is improved, and it is not easy to cause the problem of heat dissipation, and high-capacity batteries can be simultaneously charged and discharged when multiple charging and discharge circuits are connected in parallel. In addition, short circuit or damage of a signal device does not cause the overall failure of the charging and discharging circuit.

Description

technical field [0001] The invention relates to the field of circuit design, in particular to a high-efficiency, safe, parallel-connectable, and heat-dissipating battery charging and discharging circuit. Background technique [0002] During the production process of the battery, a series of charging and discharging operations are required. With the development of power vehicles, high-power storage devices and lithium battery technology, the capacity of the battery is getting larger and larger, so the requirements for the battery charging and discharging circuit are also increasing. Higher and higher, safety issues and efficiency issues have become key issues in battery charging and discharging circuits. [0003] Please refer to figure 1 , figure 1 It is a schematic circuit diagram of an existing battery charging and discharging circuit. Among them, BUS+ and BUS- are the power supply of the battery charge and discharge circuit, SW1 is the charge switch, SW2 is the discharg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02H7/18
CPCH02J7/00H02H7/18H02J7/0068
Inventor 朱建华
Owner ANHUI DYNAMIC POWER