CN203056645U - Intelligent control circuit for charger - Google Patents
Intelligent control circuit for charger Download PDFInfo
- Publication number
- CN203056645U CN203056645U CN201320047143.9U CN201320047143U CN203056645U CN 203056645 U CN203056645 U CN 203056645U CN 201320047143 U CN201320047143 U CN 201320047143U CN 203056645 U CN203056645 U CN 203056645U
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- charger
- charging
- voltage
- control circuit
- resistance
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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
本实用新型涉及一种控制电路，公开了一种充电器智能控制电路，包括：电池充电电路和系统控制芯片。还包括：接入电压检测电路，用于在充电器充电输出端连接被充电设备后，检测充电输出端的电压，从而判断接入的被充电设备类型；充电电压控制电路，用于根据检测到的被充电设备类型，控制充电器充电输出端的电压；接入电压检测电路和充电电压控制电路分别与系统控制芯片连接。其有益效果是，可有效避免用户用输出5.0V的转接头充电器对机械电子烟充电时产生的过充问题，安全可靠，杜绝了电池在充电时发生爆炸的隐患。消费者充电时不需要去辨别电子烟电压的类型，可直接使用此转接头充电器对电子烟进行充电，使用起来比较方便。
The utility model relates to a control circuit and discloses an intelligent control circuit of a charger, which comprises a battery charging circuit and a system control chip. It also includes: an access voltage detection circuit, used to detect the voltage of the charging output terminal after the charging output terminal of the charger is connected to the charged device, thereby judging the type of the connected charged device; a charging voltage control circuit, used to The type of the device to be charged controls the voltage of the charging output terminal of the charger; the access voltage detection circuit and the charging voltage control circuit are respectively connected to the system control chip. The beneficial effect is that it can effectively avoid the overcharging problem when the user uses the adapter charger outputting 5.0V to charge the mechanical electronic cigarette, is safe and reliable, and eliminates the hidden danger of battery explosion during charging. Consumers do not need to identify the voltage type of electronic cigarettes when charging, and can directly use this adapter charger to charge electronic cigarettes, which is more convenient to use.
Description
Technical field
The utility model relates to a kind of control circuit, relates in particular to a kind of charger intelligence control circuit.
Background technology
In the prior art, when rechargeable battery is charged, must use the charger (claiming " adapter " again) of output voltage coupling that battery is charged.For example: in electronics cigarette industry, the mechanical electronic cigarette adapter charger of output 4.2V, the integrated type electrical cigarette adapter charger that is output as 5.0V.If mechanical electronic cigarette mistake uses the charger (adapter) of 5.0V to its charging, light then destroy the internal structure of battery, reduce the useful life of battery, seriously then cause battery leakage, smolder, on fire even blast, when causing consumer's property loss, bring the hidden danger of personal safety.And in the reality because the electronics cigarette connects the compatibility of the screw thread of charger, in actual applications, this mistake often happens occasionally.In like manner, in mobile devices such as mobile phone, MP3, because the compatibility of charging inlet, also there is above-mentioned security hidden trouble in rechargeable battery when charging.
The utility model content
The purpose of this utility model is will provide a kind of can regulate internal voltage output automatically according to the device type that is recharged that inserts, and rechargeable battery is carried out the charger intelligence control circuit of safe charging.
According to an aspect of the present utility model, the charger intelligence control circuit that provides comprises battery charger and system control chip, also comprises:
Insert voltage detecting circuit, be used for after the connection of charger charging output is recharged equipment, detects the voltage of charging output, thereby judging the device type that is recharged that inserts;
Charging voltage control circuit is used for according to the detected device type that is recharged, the voltage of control charger charging output;
Inserting voltage detecting circuit is connected with system control chip respectively with charging voltage control circuit.
In some embodiments, also comprise the charging current testing circuit, for detection of the electric current in the battery charger in the charger.
In some embodiments, also comprise temperature sensing circuit, for detection of the interior environment temperature of charger when working.
In some embodiments, insert voltage detecting circuit and comprise charging management chip, charging management chip is connected with system control chip.
In some embodiments, charging voltage control circuit comprises charging management chip and is used for the transistor of control that charging management chip is connected with transistor.
In some embodiments, insert voltage detecting circuit and be provided with voltage sample resistance.
In some embodiments, charging voltage control circuit is provided with regulating resistor.
In some embodiments, insert voltage detecting circuit and also comprise resistance, electric capacity and transistor, electric capacity is connected with resistance respectively with transistor.
In some embodiments, charging voltage control circuit also comprises precision resister and thermistor, and precision resister is connected with charging management chip respectively with thermistor.
The beneficial effects of the utility model are that the problem that overcharges of generation is safe and reliable in the time of can effectively avoiding the user with the adapter charger of exporting 5.0V the mechano-electronic cigarette to be charged, and has stopped the hidden danger that battery is blasted when charging.Do not need to distinguish the type of electronics cigarette voltage when the consumer charges, can directly use this adapter charger that the electronics cigarette is charged, use more convenient.This circuit is simple and reliable, and cost is low, has reduced the producing cost of enterprise.
Description of drawings
Fig. 1 is the structural representation of the charger intelligence control circuit of the utility model one execution mode.
Embodiment
Below in conjunction with accompanying drawing execution modes more of the present utility model are described in further detail.
The demonstration of Fig. 1 signal the charger intelligence control circuit of the utility model one execution mode, comprise battery charger and system control chip, also comprise:
Insert voltage detecting circuit, it comprises charging management chip U2, system control chip (not shown), metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q4, resistance R 12, resistance R 13, resistance R 21, resistance R 11, resistance R 14, voltage sample resistance R 25, resistance R 24, capacitor C 12.Wherein metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q4, resistance R 21, resistance R 12, resistance R 13 are all in parallel with charging management chip U2.Resistance R 11 and resistance R 14, voltage sample resistance R 25 is connected with capacitor C 12, and resistance R 24 is connected with metal-oxide-semiconductor Q4.Charging management chip U2 and system control chip series connection.It is whole in parallel with resistance R 14 after voltage sample resistance R 25 is connected with capacitor C 12.The 5th pin of charging management chip U2 and an end of resistance R 24 are connected the both positive and negative polarity of charger output respectively.Voltage sample resistance R 25 also is connected in system control chip.This circuit is used for detecting the voltage of described charging output, thereby judging the device type that is recharged that inserts after the connection of charger charging output is recharged equipment.
Charging voltage control circuit, it comprise charging management chip U2, regulating resistor R22, resistance R 12, thermistor R13, precision resister R21, resistance R 10,, resistance R 9, metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q3.Wherein precision resister R21, resistance R 12, thermistor R13, regulating resistor R22 and metal-oxide-semiconductor Q1 are in parallel with charging management chip U2 respectively.Resistance R 10 is in parallel with metal-oxide-semiconductor Q1, and metal-oxide-semiconductor Q3 connects with metal-oxide-semiconductor Q1, and resistance R 9 is in parallel with metal-oxide-semiconductor Q3.Wherein metal-oxide-semiconductor Q3 also is connected in system control chip.This circuit is used for according to the detected device type that is recharged, the voltage of control charger charging output.
Inserting voltage detecting circuit is connected with system control chip respectively with charging voltage control circuit.
Voltage sample resistance R 25 is connected in system control chip with the junction of capacitor C 12, for detection of the voltage of resistance R 11 and resistance R 14 junctions; The junction of resistance R 15 and capacitor C 13 is connected in system control chip, for detection of the voltage of resistance R 24 and electronics cigarette junction.The grid of metal-oxide-semiconductor Q4 is connected in system control chip, is used for the break-make of control metal-oxide-semiconductor Q4.The PIN7 pin of charging management chip U2 is connected in system control chip, for detection of the operating state of charging management chip U2, is to charge or not charging.The grid of metal-oxide-semiconductor Q3 is connected in system control chip, is used for the break-make of control metal-oxide-semiconductor Q3, control the break-make of metal-oxide-semiconductor Q1 indirectly, thereby the access of controlling resistance R21 has effectively not.Wherein resistance R 21 is precision resisters.The PIN2 pin of charging management chip U2 meets drop-down regulating resistor R22, is used for the High Output Current of control charging management chip U2 when charging, i.e. electric current during constant current charge.Resistance R 12 and resistance R 13 are used for the temperature protection control of charging management chip U2; wherein resistance R 13 is a NTC thermistor; resistance R 13 should be near charging management chip U2 when Composition Design; when charging management chip U2 temperature reaches a high temperature the protection value; charging management chip U2 can obtain a low-voltage by PIN1 pin feedback, enters the overtemperature prote state thereby stop charging.Resistance R 21 is a precision resister, is connected between the PIN2 pin and PIN5 pin of charging management chip U2, and wherein the PIN5 pin is the charging output; When resistance R 21 accesses are effective, the PIN5 pin VBAT end output electronics cigarette required voltage of charging management chip U2.Resistance R 11 and resistance R 14 are connected charging output two ends, are used for measuring the output voltage of the charging management chip U2 after the electronics cigarette inserts, and then judge the type that inserts the electronics cigarette.By judging the type of electronics cigarette, the output of control charging voltage.
When the execution of electronics cigarette charging operations, metal-oxide-semiconductor Q4 conducting, system control chip is judged the electronics cigarette type that inserts by the voltage that detects the charging output behind the access electronics cigarette.Specific practice is for detecting the resistance R 11 be connected between voltage output end VBAT and the power supply ground GND and the voltage of resistance R 14 junctions, and voltage sample resistance R 25 and capacitor C 12 play elimination interference, burning voltage.According to above-mentioned judgement, if the electronics cigarette that inserts is the integrated electronic cigarette, then close metal-oxide-semiconductor Q4 by system control chip, make the source electrode and the resistance R 21 between the drain electrode that are connected in parallel on metal-oxide-semiconductor Q1 effective, thereby make charging management chip U2 output 5.0V voltage, the integrated electronic cigarette is charged normal; If the electronics cigarette that inserts is the mechano-electronic cigarette, then by system control chip conducting metal-oxide-semiconductor Q4, make the source electrode and the 21 approximate short circuits of the resistance R between the drain electrode that are connected in parallel on metal-oxide-semiconductor Q1 invalid, thereby make charging management chip U2 output 4.2V voltage, the mechano-electronic cigarette is charged normal.
When the PIN8 of charging management chip U2 pin and PIN5 pin short circuit, charging management chip U2 is output 4.2V charging voltage when charging.When between the PIN8 of charging management chip U2 pin and PIN5 pin, inserting resistance R 21, will improve the charging output voltage, within the specific limits, the resistance of access is more big, and the voltage of charging output is more big.After the integrated electronic cigarette inserted the charging of 5.0V charger, if the cell voltage of electronics cigarette very little (being generally less than 2.7V), charger output output voltage was approximately equal to electronics cigarette cell voltage; Otherwise the output voltage of charger output keeps 5.0V always.After the electronics cigarette of machinery inserted the charging of 5.0V charger, charger output output voltage all was approximately equal to the cell voltage of electronics cigarette, but must limit this moment to charging current.Comprehensive above 2 points, when the electronics cigarette need charge, control electronics cigarette charger carried out 5.0V, controlled current output.After the electronics cigarette inserts charging, detect the charger output end voltage, if output end voltage is too little, then continuing to keep 5.0V, to be charged to voltage enough big; When output end voltage is enough big, by the analysis and judgement magnitude of voltage, can judge the type of the electronics cigarette that inserts charging.If the electronics cigarette is integrated type, then control charger output 5.0V voltage; If the electronics cigarette is mechanical type, then control charger output 4.2V voltage.
When detecting user's charging requirement, (realizes by external key) system control chip that it is high potential that system control chip is put corresponding connection pin.Make charger to electronics cigarette output 5.0V charging voltage, charging current is determined by regulating resistor R22.Thereafter, system control chip detects the output waveform of the PIN7 pin of charging management chip U2, judges whether the electronics cigarette enters charged state, if do not enter charged state, then may be that the electronics cigarette does not insert or loose contact etc.This moment, the charger charge closing was charged after the wait user affirmation problem again.If charging management chip U2 has entered charged state, then system control chip begins by the voltage between resistance R 11 and the resistance R 14 is sampled, if voltage is too little, then do not change the state of system control chip, the attitude of remaining stationary is enough big up to detecting voltage; If it is enough big to detect voltage, then carries out electronics cigarette access style and judge.Judgment mode is as follows: if output voltage about 5.0 volts, can judge that then the electronics cigarette of access is the integrated electronic cigarette, the attitude that continues to remain stationary is charged to the electronics cigarette; If output voltage less than or be slightly larger than 4.2V, the electronics cigarette that then can judge access is the integrated electronic cigarette, this moment system control chip must to put its corresponding connection pin be high level, conducting metal-oxide-semiconductor Q3 and metal-oxide-semiconductor Q1 make resistance R 21 insert invalid, charger output 4.2V voltage.After the charging beginning, system control chip all keeps the voltage of the output waveform of the PIN7 pin of charging management chip U2 and resistance R 24 and electronics cigarette junction is detected always, when detecting charging management chip U2 not when charged state or charging current are unusual, all carry out the operation of charge closing, wait for charging request next time.
The above only is execution modes more of the present utility model; should be pointed out that to those skilled in the art, under the prerequisite that does not break away from the utility model creation design; can also make some similar distortion and improvement, these also should be considered as within the protection range of the present utility model.
Claims (9)
1. the charger intelligence control circuit comprises battery charger and system control chip, it is characterized in that, also comprises:
Insert voltage detecting circuit, be used for after the connection of charger charging output is recharged equipment, detects the voltage of described charging output, thereby judging the device type that is recharged that inserts;
Charging voltage control circuit is used for according to the detected device type that is recharged, the voltage of the described charging output of control charger;
Described access voltage detecting circuit is connected with described system control chip respectively with described charging voltage control circuit.
2. charger intelligence control circuit according to claim 1 is characterized in that, also comprises the charging current testing circuit, for detection of the electric current in the battery charger described in the charger.
3. charger intelligence control circuit according to claim 1 is characterized in that, also comprises temperature sensing circuit, for detection of the interior environment temperature of charger when working.
4. according to claim 1 or 2 or 3 described charger intelligence control circuits, it is characterized in that described access voltage detecting circuit comprises charging management chip, described charging management chip is connected with described system control chip.
5. according to claim 1 or 2 or 3 described charger intelligence control circuits, it is characterized in that described charging voltage control circuit comprises charging management chip and be used for the transistor of control that described charging management chip is connected with described transistor.
6. according to claim 1 or 2 or 3 described charger intelligence control circuits, it is characterized in that described access voltage detecting circuit is provided with voltage sample resistance.
7. according to claim 1 or 2 or 3 described charger intelligence control circuits, it is characterized in that described charging voltage control circuit is provided with regulating resistor.
8. charger intelligence control circuit according to claim 4 is characterized in that, described access voltage detecting circuit also comprises resistance, electric capacity and transistor, and described electric capacity is connected with described resistance respectively with transistor.
9. charger intelligence control circuit according to claim 5 is characterized in that, described charging voltage control circuit also comprises precision resister and thermistor, and described precision resister is connected with described charging management chip respectively with thermistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320047143.9U CN203056645U (en) | 2013-01-25 | 2013-01-25 | Intelligent control circuit for charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320047143.9U CN203056645U (en) | 2013-01-25 | 2013-01-25 | Intelligent control circuit for charger |
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| Publication Number | Publication Date |
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| CN203056645U true CN203056645U (en) | 2013-07-10 |
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| CN201320047143.9U Expired - Lifetime CN203056645U (en) | 2013-01-25 | 2013-01-25 | Intelligent control circuit for charger |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015013913A1 (en) * | 2013-07-31 | 2015-02-05 | 吉瑞高新科技股份有限公司 | Overcurrent and overvoltage protection circuit and method for electronic cigarette |
| CN105006853A (en) * | 2015-06-03 | 2015-10-28 | 广东欧珀移动通信有限公司 | A method and power amplifier for outputting charging current |
| WO2018107494A1 (en) * | 2016-12-16 | 2018-06-21 | 惠州市吉瑞科技有限公司深圳分公司 | Electronic cigarette design method, control method, and electronic cigarette |
| EP3484012B1 (en) | 2014-07-24 | 2023-01-25 | Nicoventures Trading Limited | Re-charging pack for an e-cigarette |
-
2013
- 2013-01-25 CN CN201320047143.9U patent/CN203056645U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015013913A1 (en) * | 2013-07-31 | 2015-02-05 | 吉瑞高新科技股份有限公司 | Overcurrent and overvoltage protection circuit and method for electronic cigarette |
| EP3484012B1 (en) | 2014-07-24 | 2023-01-25 | Nicoventures Trading Limited | Re-charging pack for an e-cigarette |
| CN105006853A (en) * | 2015-06-03 | 2015-10-28 | 广东欧珀移动通信有限公司 | A method and power amplifier for outputting charging current |
| US10439416B2 (en) | 2015-06-03 | 2019-10-08 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for outputting charging current according to displayed media and power amplifier |
| WO2018107494A1 (en) * | 2016-12-16 | 2018-06-21 | 惠州市吉瑞科技有限公司深圳分公司 | Electronic cigarette design method, control method, and electronic cigarette |
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| C14 | Grant of patent or utility model | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20130710 |
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| CX01 | Expiry of patent term |