CN205595851U - Lithium batteries ware IC chip - Google Patents
Lithium batteries ware IC chip Download PDFInfo
- Publication number
- CN205595851U CN205595851U CN201620357165.9U CN201620357165U CN205595851U CN 205595851 U CN205595851 U CN 205595851U CN 201620357165 U CN201620357165 U CN 201620357165U CN 205595851 U CN205595851 U CN 205595851U
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- China
- Prior art keywords
- module
- charge
- logic control
- control module
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a lithium batteries ware IC chip, including undervoltage protection module, temperature protective film piece, timer and logic control module, the current source module lower extreme is provided with the undervoltage protection module, and quick charge circuit one side is provided with operational amplifier, and temperature protective film piece inside is provided with overheated protective film piece, and the timer lower extreme is provided with input power selecting module, and logic control module one side is provided with the comparator, and the logic control module opposite side is provided with protective film 2 in advance, is being full of the electric charge between positive pole and the negative pole. Beneficial effect lies in: can restore and protect the battery that the overdischarge appears, then adopt great constant current source to charge to the battery, realize the purpose of quick charge adopting constant voltage charge at last, ensure that the battery is full of, charge mode has when charging and asks the weak point, and advantage that charge efficiency is high is equipped with the temperature protection of charging and protects with charge time for charging process safety, reliable, quick, high -efficient.
Description
Technical field
This utility model belongs to IC chip field, is specifically related to a kind of lithium battery charger IC chip.
Background technology
Along with the development of electronic technology, portable set continues to bring out, and enriches and facilitate the life of people.Now, the portable set such as mobile phone, notebook computer, digital camera oneself through becoming a part for people's life, and have the most wide market prospect and development space, from now on, also have more portable set and occur.The development of portable set, has higher requirement to battery industry.Low cost, high voltage, high-energy-density, lightness, long-life, the battery of high security, the most reusable rechargeable battery receives much concern.The most widely used Portable chargeable battery can be divided into: Ni-MH battery, lithium ion and lithium polymer battery etc., for other battery, it is high that lithium battery has charge efficiency, the advantages such as the charging interval is short, but nowadays control to the charging process of lithium battery is the strictest, it is difficult to ensure the charging safety of lithium battery.
Utility model content
The purpose of this utility model is that provides a kind of lithium battery charger IC chip to solve the problems referred to above.
This utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of lithium battery charger IC chip; including under-voltage protective module, temperature protection module, intervalometer and Logic control module; current source module lower end is provided with under-voltage protective module; quick-charging circuit side is provided with operational amplifier; temperature protection module is internally provided with overtemperature protection module, and intervalometer lower end is provided with input power and selects module, and Logic control module side is provided with comparator; Logic control module opposite side is provided with pre-charge circuit, is flooded with electric charge between positive pole and negative pole.
In said structure, current source module provides reference current for each module, under-voltage protective module is operational amplifier, comparator provides the reference voltage of below 2.5V, input supply voltage can be detected by its under-voltage protective module simultaneously, when supply voltage is unsatisfactory for charging requirement, breaking circuit is to reduce power consumption, temperature protection module predominantly detects chip temperature and battery temperature, when temperature exceedes certain limit, suspend charging, pre-charge circuit is mainly when battery temperature is less than 3V, battery is carried out low current charge, quick-charging circuit carries out the constant current constant voltage pattern charging of big electric current to battery, battery charge time is mainly controlled by intervalometer, play charge protection effect, Logic control module mainly carries out logical process to each control signal, realize the intelligent management of charging process.
As preferred version of the present utility model: current source module is connected with under-voltage protective module, temperature protection module is embedded in quick-charging circuit.
As preferred version of the present utility model: overtemperature protection module is arranged in temperature protection module, and comparator is connected with Logic control module.
As preferred version of the present utility model: pre-charge circuit is connected with Logic control module, intervalometer is connected with Logic control module.
Have the beneficial effects that: less current versus cell can be used to carry out pretreatment at the charging initial stage; battery overdischarge occur is repaired and protects; then use bigger constant current that battery is charged; realize the purpose of quick charge; finally use constant-voltage charge; guaranteeing that battery is full of, charging modes is asked short when having charging, the advantage that charge efficiency is high.It is provided with charging temperature protection and the charging interval is protected so that charging process is safe and reliable, quick, efficient.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of a kind of lithium battery charger IC chip described in the utility model；
Fig. 2 is the lithium ion battery structure schematic diagram of a kind of lithium battery charger IC chip described in the utility model.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
As Figure 1-Figure 2, a kind of lithium battery charger IC chip, including under-voltage protective module 2, temperature protection module 4, intervalometer 7 and Logic control module 9, current source module 1 lower end is provided with under-voltage protective module 2, under-voltage protective module 2 is operational amplifier 11, comparator 8 provides the reference voltage of below 2.5V, quick-charging circuit 3 side is provided with operational amplifier 11, temperature protection module 4 is internally provided with overtemperature protection module 5, intervalometer 7 lower end is provided with input power and selects module 6, Logic control module 9 side is provided with comparator 8, Logic control module 9 opposite side is provided with pre-charge circuit 10, electric charge 13 it is flooded with between positive pole 12 and negative pole 14.
nullIn said structure，Current source module 1 provides reference current for each module，Under-voltage protective module 2 is operational amplifier 11、Comparator 8 provides the reference voltage of below 2.5V，Input supply voltage can be detected by its under-voltage protective module 2 simultaneously，When supply voltage is unsatisfactory for charging requirement，Breaking circuit is to reduce power consumption，Temperature protection module 4 predominantly detects chip temperature and battery temperature，When temperature exceedes certain limit，Suspend charging，Pre-charge circuit 10 is mainly when battery temperature is less than 3V，Battery is carried out low current charge，Quick-charging circuit 3 carries out the constant current constant voltage pattern charging of big electric current to battery，Battery charge time is mainly controlled by intervalometer 7，Play charge protection effect，Logic control module 9 mainly carries out logical process to each control signal，Realize the intelligent management of charging process.
As preferred version of the present utility model: current source module 1 is connected with under-voltage protective module 2; temperature protection module 4 is embedded in quick-charging circuit 3; overtemperature protection module 5 is arranged in temperature protection module 4; comparator 8 is connected with Logic control module 9; pre-charge circuit 10 is connected with Logic control module 9, and intervalometer 7 is connected with Logic control module 9.
Of the present utility model ultimate principle, principal character and advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description, principle of the present utility model is simply described; on the premise of without departing from this utility model spirit and scope; this utility model also has various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model.This utility model claims scope and is defined by appending claims and effect thing thereof.
Claims (4)
1. a lithium battery charger IC chip; including under-voltage protective module, temperature protection module, intervalometer and Logic control module; it is characterized in that: current source module lower end is provided with under-voltage protective module; quick-charging circuit side is provided with operational amplifier; temperature protection module is internally provided with overtemperature protection module; intervalometer lower end is provided with input power and selects module; Logic control module side is provided with comparator; Logic control module opposite side is provided with pre-charge circuit, is flooded with electric charge between positive pole and negative pole.
A kind of lithium battery charger IC chip the most according to claim 1, it is characterised in that: current source module is connected with under-voltage protective module, and temperature protection module is embedded in quick-charging circuit.
A kind of lithium battery charger IC chip the most according to claim 1, it is characterised in that: overtemperature protection module is arranged in temperature protection module, and comparator is connected with Logic control module.
A kind of lithium battery charger IC chip the most according to claim 1, it is characterised in that: pre-charge circuit is connected with Logic control module, and intervalometer is connected with Logic control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620357165.9U CN205595851U (en) | 2016-04-26 | 2016-04-26 | Lithium batteries ware IC chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620357165.9U CN205595851U (en) | 2016-04-26 | 2016-04-26 | Lithium batteries ware IC chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205595851U true CN205595851U (en) | 2016-09-21 |
Family
ID=56934953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620357165.9U Expired - Fee Related CN205595851U (en) | 2016-04-26 | 2016-04-26 | Lithium batteries ware IC chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205595851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879816A (en) * | 2018-06-05 | 2018-11-23 | 杭州奥能电源设备有限公司 | A kind of charge control method based on lithium battery characteristic |
-
2016
- 2016-04-26 CN CN201620357165.9U patent/CN205595851U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879816A (en) * | 2018-06-05 | 2018-11-23 | 杭州奥能电源设备有限公司 | A kind of charge control method based on lithium battery characteristic |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20170426 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |