Device and method for controlling procedure of charging batteries

A battery charging and battery voltage technology, applied in battery circuit devices, circuit devices, computer control, etc., can solve problems such as poor battery adaptability, high cost of dedicated charging management circuits, poor flexibility, etc., to achieve accurate charging effects and cost savings Effect with printed board area

Inactive Publication Date: 2007-05-09
STATE GRID TIANJIN ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a device and method for controlling the battery charging process, which is compatible with different types of batteries, flexibly adapts to the charging curves of various rechargeabl

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  • Device and method for controlling procedure of charging batteries
  • Device and method for controlling procedure of charging batteries
  • Device and method for controlling procedure of charging batteries

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Embodiment Construction

[0034] In the present invention, the specific principles of charging constant current circuit and constant voltage circuit are not discussed, and a mature power management chip is recommended as a power management module to achieve good consistency, simple control and low circuit complexity. For special application requirements, charging control, constant voltage, constant current, overvoltage protection, etc. can also be realized by discrete circuits.

[0035] Fig. 1 shows a device diagram for controlling the battery charging process according to an embodiment of the present invention, including:

[0036] Microprocessor module 101, the microprocessor module is in charge of monitoring the whole link of charging, and controls the power management module to execute each link of charging. It is mainly used to detect the battery voltage and store the charging characteristic curves of different types of batteries. When charging, select the corresponding charging characteristic curv...

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Abstract

The device consists of the microprocessor module (MP), the voltage and current stability module (VCS), the power supply management module and the tiny current charging module. Depending on the battery type, MP selects the corresponding charging function curve and samples the charging parameters timely. MP compares the sampled data with the charging curve and judges whether it is needed to change the charging parameter; if yes, resetting the recent charging parameters according to the charging curve and regulates VCS output. This invention is compatible with various batteries and suits flexibly to the various charging curve to charge batteries accurately. It solves the existed technique problem that the special charging management circuit possesses high cost, poor flexibility and weak ability on adapting various batteries.

Description

technical field [0001] The invention relates to the technical field of battery charging, in particular to a device and method for controlling the battery charging process. Background technique [0002] Portable electronic products use batteries as their power source. With the rapid development of portable products, the usage of various batteries has greatly increased, and many new batteries have also been developed. In addition to the familiar high-performance alkaline batteries, rechargeable nickel-cadmium batteries, and nickel-metal hydride batteries, there are also lithium batteries developed in recent years. Compact portable electronic products require small size and light weight, in which battery improvement is a factor that plays an important role. [0003] At present, commonly used new rechargeable batteries include nickel metal hydride batteries and lithium batteries. The specific energy of the Ni-MH battery reaches 75-80W·h / kg, the specific power reaches 160-230W...

Claims

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Application Information

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IPC IPC(8): H02J7/00G05B15/02
Inventor 左程蔡红红
Owner STATE GRID TIANJIN ELECTRIC POWER
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