Charger management circuit

A technology for managing circuits and chargers, applied to battery circuit devices, current collectors, circuit devices, etc., can solve problems such as battery explosion and inability to monitor lithium-ion batteries in real time, and achieve the goal of prolonging service life, improving safety and reliability Effect

Inactive Publication Date: 2010-07-21
SHENZHEN OMA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a charger called universal has appeared on the market. This universal charger can charge various types of lithium-ion batteries, but it is built from simple discrete devices and has a fatal shortcoming: it cannot charge lithium-ion batteries. Lithium-ion batteries are monitored in real time, and battery explosions are prone to occur

Method used

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Embodiment Construction

[0024] The lithium-ion universal charger management circuit of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] see figure 1 , which is a block diagram of a management circuit of a lithium-ion universal charger according to an embodiment of the present invention. The management circuit of the lithium-ion universal charger may include: a power-on detection circuit 11, a battery polarity detection circuit 12, a battery state detection circuit 13, a battery Voltage detection circuit 14, charging control circuit 15, power tube charging output circuit 16, LED indicator light control circuit 17.

[0026] The power-on detection circuit 11, the battery polarity detection circuit 12, the battery state detection circuit 13 and the battery voltage detection circuit 14 are all connected to the LED indicator light control circuit 17, and output respective detection signals to the LED indicator light control circuit 17, The LED...

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Abstract

The invention discloses a charger management circuit. The charger management circuit comprises a power supply detection circuit, a battery polarity detection circuit, a battery state detection circuit, a battery voltage detection circuit, a charging control circuit, a power tube charging output circuit and an LED indicating lamp control circuit; wherein the LED indicating lamp control circuit is used for controlling operative modes of the indicating lamp according to detection results of the detection circuits; the charging control circuit is used for controlling the power tube charging output circuit whether to charge lithium ion battery or not according to detection results of the detection circuits. The charger management circuit can monitor state of the lithium ion battery in real time, control charging current of the lithium ion battery and greatly enhance safety and reliability for charging the lithium ion battery and lengthen service life of the lithium ion battery.

Description

technical field [0001] The invention relates to a battery charger, in particular to a charging management circuit suitable for various types of lithium ion batteries. Background technique [0002] Due to its large capacity and higher voltage than AA batteries, lithium-ion batteries are used in more and more occasions. At the same time, due to the chemical characteristics of lithium-ion batteries, the charging environment is prone to explosion, so the requirements for charging management circuits are very high. , Generally, electronic products using lithium-ion batteries are equipped with special chargers. In this way, when a family has many different electronic products, such as mobile phones of different models and different manufacturers, multiple dedicated lithium-ion chargers are needed, and one of them must be reconfigured if it is lost or damaged. Therefore, a kind of charger called universal has appeared on the market. This universal charger can charge various types ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02H7/18
Inventor 洪旭彬陈立
Owner SHENZHEN OMA IND
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