CN201340871Y - Two series of lithium cell protective board circuit provided with charging state indication - Google Patents
Two series of lithium cell protective board circuit provided with charging state indication Download PDFInfo
- Publication number
- CN201340871Y CN201340871Y CNU2008201447633U CN200820144763U CN201340871Y CN 201340871 Y CN201340871 Y CN 201340871Y CN U2008201447633 U CNU2008201447633 U CN U2008201447633U CN 200820144763 U CN200820144763 U CN 200820144763U CN 201340871 Y CN201340871 Y CN 201340871Y
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- China
- Prior art keywords
- resistor
- circuit
- resistance
- audion
- charging
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- 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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- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to two series of lithium cell protective board circuit provided with charging state indication, which comprises a charging circuit and a charging seat; and is characterized in that a charging state indication circuit is connected between the charging circuit and the charging seat; the circuit consists of a first resistor, a second resistor, a seventh resistor, an audion and a light emitting diode which are connected; the base electrode of the audion is connected to the second resistor, the emitting electrode of the audion is connected with the first resistor; the first resistor and the second resistor are connected with the anode of the power supply; the collector of the audion is connected with the seventh resistor; the seventh resistor is connected with the anode of the light emitting diode; and the cathode is connected with the ground. The charger can generates a voltage drop on the first resistor when charging the battery pack; and the voltage drop is utilized to open the audion to light the light emitting diode. The voltage drop on the first resistor disappears when the cell is charged; the audion is closed and the light emitting diode is extinguished. The protective board circuit is provided with a charge discharge protection and indication function as well. The circuit has simple structure and reliable performance.
Description
Technical field
The utility model relates to a kind of lithium ion battery, particularly a kind of two series lithium battery baffle circuit that are provided with the charged state indication.
Background technology
At present, lithium ion battery protecting plate and power brick integrate, and do not have the charged state deixis usually.Charging indication if desired then needs charger to provide or adopt single-chip microcomputer and application-specific integrated circuit to realize.If deixis is located on the charger, then need the supporting charger that has deixis, the selection of charger will be restricted, and cause complex technical processization.Realize that then cost is too high if adopt single-chip microcomputer and application-specific integrated circuit.
The utility model content
The purpose of this utility model is to overcome above-mentioned weak point, provides a kind of simple in structure, and dependable performance is used the two series lithium battery baffle circuit that are provided with the charged state indication easily.
The technical scheme that the utility model adopted is for achieving the above object: a kind of two series lithium battery baffle circuit that are provided with the charged state indication comprise charging circuit and cradle J2; It is characterized in that being connected with between described charging circuit and the cradle J2 charged state indicating circuit I; This circuit is connected to form by first resistance R 1, second resistance R 2, the 7th resistance R 7, triode Q3, LED; The base stage of described triode Q3 is connected with second resistance R 2, and the emitter of triode Q3 is connected with first resistance R 1 with cradle J2 respectively; First resistance R 1, second resistance R 2 are connected with positive source, and the collector electrode of triode Q3 is connected with the 7th resistance R 7, and the 7th resistance R 7 is connected the LED minus earth with LED is anodal.
The beneficial effects of the utility model are: this baffle circuit has charge and discharge protecting and deixis.It is simple in structure, and is reasonable in design, dependable performance.Conveniently simplify the operation, effectively enhance productivity, reduce production costs.
Description of drawings
Fig. 1 is the utility model circuit connection diagram.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, details are as follows to embodiment, structure, feature that foundation the utility model provides:
As shown in Figure 1, a kind of two series lithium battery baffle circuit that are provided with the charged state indication comprise charging circuit and cradle J2; It is characterized in that being connected with between described charging circuit and the cradle J2 charged state indicating circuit I; This circuit is connected to form by first resistance R 1, second resistance R 2, the 7th resistance R 7, triode Q3, LED; The base stage of described triode Q3 is connected with second resistance R 2, and the emitter of triode Q3 is connected with first resistance R 1 with cradle J2 respectively; First resistance R 1, second resistance R 2 are connected with positive source, and the collector electrode of triode Q3 is connected with the 7th resistance R 7, and the 7th resistance R 7 is connected the LED minus earth with LED is anodal.
Integrated chip J1 employing model is S-8232NQFT in the described charging circuit.
It is ZSK1590 that described triode Q3 adopts model.
The triode Q3 that adopts in this circuit also can realize with metal-oxide-semiconductor.
Operation principle: can on first resistance R 1, produce pressure drop when charger charges to battery pack by cradle J2, utilize this pressure drop to open triode Q3, light LED.Pressure drop when battery is full of electricity on first resistance R 1 disappears, and triode Q3 closes, and LED extinguishes.So just realized that the charging process indicator light is bright, the effect that indicator light goes out when being full of electricity.
The invention solves the technical problem of on existing baffle circuit, finishing the charged state indication; described charged state indicating circuit only need increase an indicator light; a triode and two current-limiting resistances get final product, and realize the LED state indication whether battery is full of, and easily row is easy to implement.
Above-mentioned detailed description of these two series lithium battery baffle circuit that are provided with the charged state indication being carried out with reference to embodiment; be illustrative rather than determinate; therefore in the variation and the modification that do not break away under the utility model general plotting, should belong within the protection range of the present utility model.
Claims (1)
1, a kind of two series lithium battery baffle circuit that are provided with the charged state indication comprise charging circuit and cradle (J2); It is characterized in that being connected with between described charging circuit and the cradle (J2) charged state indicating circuit (I); This circuit is connected to form by first resistance (R1), second resistance (R2), the 7th resistance (R7), triode (Q3), light-emitting diode (LED); The base stage of described triode (Q3) is connected with second resistance (R2), and the emitter of triode (Q3) is connected with first resistance (R1) with cradle (J2) respectively; First resistance (R1), second resistance (R2) are connected with positive source, and the collector electrode of triode (Q3) is connected with the 7th resistance (R7), and the 7th resistance (R7) is connected light-emitting diode (LED) minus earth with light-emitting diode (LED) is anodal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201447633U CN201340871Y (en) | 2008-12-23 | 2008-12-23 | Two series of lithium cell protective board circuit provided with charging state indication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201447633U CN201340871Y (en) | 2008-12-23 | 2008-12-23 | Two series of lithium cell protective board circuit provided with charging state indication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201340871Y true CN201340871Y (en) | 2009-11-04 |
Family
ID=41236413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201447633U Expired - Fee Related CN201340871Y (en) | 2008-12-23 | 2008-12-23 | Two series of lithium cell protective board circuit provided with charging state indication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201340871Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012103613A1 (en) | 2011-02-02 | 2012-08-09 | Siemens Ltda | Dry distribution transformer |
| CN106684982A (en) * | 2016-12-21 | 2017-05-17 | 天津力神特种电源科技股份公司 | Lithium-ion battery output control circuit |
| CN106936186A (en) * | 2017-03-28 | 2017-07-07 | 湖南三十七度科技有限公司 | A kind of simple battery charge prompting method |
-
2008
- 2008-12-23 CN CNU2008201447633U patent/CN201340871Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012103613A1 (en) | 2011-02-02 | 2012-08-09 | Siemens Ltda | Dry distribution transformer |
| CN106684982A (en) * | 2016-12-21 | 2017-05-17 | 天津力神特种电源科技股份公司 | Lithium-ion battery output control circuit |
| CN106936186A (en) * | 2017-03-28 | 2017-07-07 | 湖南三十七度科技有限公司 | A kind of simple battery charge prompting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20111223 |