CN101789616A - Electric quantity and charge dual-purpose indicating circuit of charger - Google Patents
Electric quantity and charge dual-purpose indicating circuit of charger Download PDFInfo
- Publication number
- CN101789616A CN101789616A CN201010042625A CN201010042625A CN101789616A CN 101789616 A CN101789616 A CN 101789616A CN 201010042625 A CN201010042625 A CN 201010042625A CN 201010042625 A CN201010042625 A CN 201010042625A CN 101789616 A CN101789616 A CN 101789616A
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- charger
- circuit
- battery
- electric quantity
- display
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides an electric quantity and charge dual-purpose indicating circuit of a charger. The electric quantity and charge dual-purpose indicating circuit as a CMOS (Complementary Metal Oxide Semiconductor) integrated circuit is externally connected with an adjusting resistor and a multi-segment LED (Light-Emitting Diode) or LCD (Liquid Crystal Display) display. When a battery is charged through the charger, the multi-segment display is driven to jumpily twinkle through the electric quantity and charge dual-purpose indicating circuit to indicate a charging state; when the battery is not charged through the charger, the multi-segment display is driven to lighten several segments or all the segments through the electric quantity and charge dual-purpose indicating circuit to indicate the electric quantity of the battery. The battery electric quantity detecting and indicating functions are added to the charger through the invention, and the multi-segment display jumpily twinkles when in charging to enable the charger to become lively and dynamic. The invention has simple circuit, fewer externally connected elements and low cost and is applied to various chargers in large quantity.
Description
Technical field
The present invention relates to the various charger products that need battery electric quantity indication and charged state indication.As battery charger for mobile phone, onboard charger, digital camera battery charger, toy battery charger, electric car charger, battery charger, solar charger etc.
Background technology
In the market not with the present invention similarly, can show electric weight again can be when the charging the jump charger product of flicker of multistage.Present various chargers, all there is not electric weight to detect and the function of indicating, battery is connected the situation of not knowing electric weight in the battery behind the charger, just can not estimate also that this battery does not charge can also with how long, charging need be filled and how long just can be full of if take away, all be that bright or lamp dodges and indicates with lamp when also can't see the situation of electric weight and the charging of present charger product in the process of charging, seem very dull.
Summary of the invention
In order to overcome above problem, the invention provides a kind of brand-new dual-purpose charger indicating circuit that the multistage lamp dodges can detect with pilot cell electric weight and charging at any time the time, new circuit has solved the problem of battery electric quantity indication, and when charger charges the battery, it is active dynamic that the flicker of multistage show jumping, charger become.
The present invention solves the scheme that its technical problem adopts: the present invention makes a CMOS integrated circuit, by internal control of the present invention (" embodiment " that detailed description is seen below), when charger only connects battery and does not connect power supply, the present invention detects the voltage of battery, by inside relatively, control the demonstration of a section or several sections and light, come the electric weight of pilot cell.When charger connects battery and power supply simultaneously, detection port VCC of the present invention detects a high level, if at this moment cell voltage does not reach the battery charge saturation value of inner setting of the present invention (by the external resistance adjustment of the present invention simultaneously, the saturation voltage of this saturation value and charger charging is synchronous), judge that then charger is to battery charge, the present invention drives multi-segment display jump flicker, indication charged state.Along with cell voltage raises, when cell voltage reached capacity voltage, the present invention drove the multi-segment display and is become all by flicker and light, and the expression battery electric quantity all is full of.The present invention has made the CMOS integrated circuit, and function all is to finish at IC interior, and outward element is few, and is convenient for production, and consistency of product, stable very good.
The invention has the beneficial effects as follows:
1, the electric weight that has increased charger detects and deixis, brings convenience to use.
The multi-segment display jumped and glimmers when 2, charger charged, and it is vivaciously dynamic that the charging indication becomes
3, make the CMOS integrated circuit, the simple outward element of circuit is few, and stability, the consistency of product are very good.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples
Accompanying drawing 1 is an inner frame principle figure of the present invention
Accompanying drawing 2 is utilization circuit diagrams of the present invention
Accompanying drawing 3 is the multi-segment display outline drawings that make with the present invention
Accompanying drawing 4 is outline drawings that the present invention makes the COB encapsulating products
Embodiment
Fig. 1 is an inner frame principle figure of the present invention
Fig. 2 is a utilization circuit diagram of the present invention
In conjunction with Fig. 1 and Fig. 2, concrete enforcement principle of the present invention is described as follows:
The present invention is consistent with the saturation voltage of charger control circuit by the saturation voltage that the resistance of adjusting R is set IC interior.
The reference voltage module of inside of the present invention can provide a constant reference voltage always under the situation that external connection battery or power supply change, for inner each road comparator reference voltage as a comparison.
After inserting battery, cell voltage compares by four road comparators and reference voltage, whenever exceeds certain magnitude of voltage and just has a comparator upset, and the state of a control latch makes display light a section or a plurality of section, with the indication electric weight.When cell voltage reached capacity voltage, whole sections of display were lighted.
Square-wave generator and frequency divider offer the flash signal of fixed frequency of L1-L4 and duty ratio.
After inserting power supply and inserting battery, VCC end of the present invention detects supply voltage, if this moment the cell voltage magnitude of voltage that do not reach capacity, the detected high level of VCC enters blink states with regard to the state of a control latch, the state of charging is indicated in the display flicker of jumping.Along with cell voltage raises, when cell voltage reached guarantor and voltage, status latch locked whole sections and lights, and the expression battery is full of.
Fig. 3 is the outline drawing of the multi-segment display that makes with the present invention, and L0-L4 forms the charactron module of a lively battery profile.L0 is electric electromotion pilot lamp, is only connecing battery // only connect power supply // connect simultaneously under the various situations such as battery and power supply, as long as the charger energising will be lighted.When only inserting battery, no matter the height of L1 cell voltage all can be lighted, L2L3L4 then lights successively according to the height of voltage, and the high more section of lighting of cell voltage is many more, reaches the saturation voltage that the present invention is provided with as cell voltage, then all lights.Insert under the situation of battery and power supply the voltage if cell voltage does not reach capacity, the then L1-L4 flicker of jumping in turn, indication charged state at the same time; As the cell voltage voltage that reaches capacity, then L1-L4 is bright entirely, and pilot cell is full of.
Fig. 4 is the outline drawing that integrated circuit of the present invention is made the COB encapsulating products, and wherein the functional definition of each pin correspondence is: 1---VCC, 2---R, 3---L0,4---L1,5---L2,6---L3,7---L4,8---BAT-, 9---BAT+.When reality is used, snap in directly that scolding tin gets final product on the main circuit board, the simple cost of technology is low.
The present invention is novel unique, the function practicality, and with low cost, market prospects are good, will be widely used in the various charger products.
Claims (4)
1. the invention provides a kind of novel charger battery electric quantity and the dual-purpose indicating circuit of charged state.It is characterized in that: the display of an external multi-segment has the function that electric weight indication and charging are indicated concurrently.When charger charges the battery, drive the multi-segment display flicker, the state of indication charging; When charger does not charge the battery, drive the multi-segment display and light wherein several sections or whole section, come the electric weight of pilot cell.
2. charger electric weight according to claim 1 and charge dual-purpose indicating circuit is characterized in that: the multi-segment display can be LED (light-emitting diode) display, also can be LCD (liquid crystal) display.
3. charger electric weight according to claim 1 and charge dual-purpose indicating circuit is characterized in that: this circuit cooperates the charging control circuit work of charger, detects the charger input terminal voltage by port VCC, judges that whether charger is to battery charge; Make the indication of this circuit and the state synchronized of charger control circuit by adjusting external resistance R.
4. charger electric weight according to claim 1 and charge dual-purpose indicating circuit, it is characterized in that: entire circuit is made the CMOS integrated circuit, only need add one and adjust resistance and display device, just can make an electric weight indication and the dual-purpose indicating module of charging indication, and the present invention makes the COB encapsulation shown in the accompanying drawing 4, can be installed on the various chargers easily, circuit is simple, and is with low cost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010042625A CN101789616A (en) | 2010-01-08 | 2010-01-08 | Electric quantity and charge dual-purpose indicating circuit of charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010042625A CN101789616A (en) | 2010-01-08 | 2010-01-08 | Electric quantity and charge dual-purpose indicating circuit of charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101789616A true CN101789616A (en) | 2010-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010042625A Pending CN101789616A (en) | 2010-01-08 | 2010-01-08 | Electric quantity and charge dual-purpose indicating circuit of charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101789616A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684255A (en) * | 2012-04-20 | 2012-09-19 | 常州市林科电器有限公司 | Battery charger with LED group display |
| CN105042472A (en) * | 2015-02-10 | 2015-11-11 | 浙江磐安绿光电子有限公司 | Multifunctional LED highlight inspection tour lamp |
| CN107078523A (en) * | 2014-10-21 | 2017-08-18 | Nec平台株式会社 | The set charger and the charging method of terminal installation of terminal installation |
| CN108258754A (en) * | 2017-12-29 | 2018-07-06 | 惠州市蓝微新源技术有限公司 | A kind of charge and discharge quick seamless handoff system |
| CN112470360A (en) * | 2018-07-20 | 2021-03-09 | 铁三角有限公司 | Wireless earphone charger, wireless earphone and wireless earphone system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173053A (en) * | 1996-08-02 | 1998-02-11 | 三星电管株式会社 | Remaining battery capacity display device |
| CN1219218C (en) * | 1999-10-18 | 2005-09-14 | 神基科技股份有限公司 | Charge or discharge state indicator of battery for protable electronic products |
| CN1996701A (en) * | 2006-01-05 | 2007-07-11 | 苏州宇达电通有限公司 | Battery charging management system and method |
| CN101119032A (en) * | 2006-08-04 | 2008-02-06 | 英华达(上海)电子有限公司 | Charging guage device and indicating method for mobile equipment |
-
2010
- 2010-01-08 CN CN201010042625A patent/CN101789616A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173053A (en) * | 1996-08-02 | 1998-02-11 | 三星电管株式会社 | Remaining battery capacity display device |
| CN1219218C (en) * | 1999-10-18 | 2005-09-14 | 神基科技股份有限公司 | Charge or discharge state indicator of battery for protable electronic products |
| CN1996701A (en) * | 2006-01-05 | 2007-07-11 | 苏州宇达电通有限公司 | Battery charging management system and method |
| CN101119032A (en) * | 2006-08-04 | 2008-02-06 | 英华达(上海)电子有限公司 | Charging guage device and indicating method for mobile equipment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684255A (en) * | 2012-04-20 | 2012-09-19 | 常州市林科电器有限公司 | Battery charger with LED group display |
| CN107078523A (en) * | 2014-10-21 | 2017-08-18 | Nec平台株式会社 | The set charger and the charging method of terminal installation of terminal installation |
| CN105042472A (en) * | 2015-02-10 | 2015-11-11 | 浙江磐安绿光电子有限公司 | Multifunctional LED highlight inspection tour lamp |
| CN108258754A (en) * | 2017-12-29 | 2018-07-06 | 惠州市蓝微新源技术有限公司 | A kind of charge and discharge quick seamless handoff system |
| CN112470360A (en) * | 2018-07-20 | 2021-03-09 | 铁三角有限公司 | Wireless earphone charger, wireless earphone and wireless earphone system |
| CN112470360B (en) * | 2018-07-20 | 2024-03-12 | 铁三角有限公司 | Charger for wireless earphone, wireless earphone and wireless earphone system |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100728 |