CN203071632U - Dual-purpose intelligent charger - Google Patents
Dual-purpose intelligent charger Download PDFInfo
- Publication number
- CN203071632U CN203071632U CN2012206950790U CN201220695079U CN203071632U CN 203071632 U CN203071632 U CN 203071632U CN 2012206950790 U CN2012206950790 U CN 2012206950790U CN 201220695079 U CN201220695079 U CN 201220695079U CN 203071632 U CN203071632 U CN 203071632U
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Abstract
Disclosed in the utility model is a dual-purpose intelligent charger that comprises a voltage reduction and stabilization unit for converting the voltage of a high-voltage alternating current into a stable charging voltage and a charging unit connected with the output of the voltage reduction and stabilization unit. The circuit structure of the charging unit includes: an output unit, which is used for transmitting the charging voltage outputted by the voltage reduction and stabilization unit to a charged battery; a charging control unit, which is electrically connected with the output unit and is used for carrying out sampling on the output voltage of the output unit and controlling the output unit to charge the battery according to a regulated charging mode; an identification determination unit, which carries out sampling on the voltage of the battery, determines the type of the battery and outputs a switch instruction; and a switch control unit, which controls the charging mode of the charging control unit according to the switch instruction outputted by the identification determination unit. According to the utility model, types of the batteries are determined according to electric quantities of batteries; and after the types of the batteries are determined, different batteries are charged by employing different modes. Therefore, the charging effect is ensured and the effect of one machine with two purposes is truly realized.
Description
Technical field
The utility model relates to the charging technique field, particularly a kind of dual-purpose intelligent charger.
Background technology
Storage battery can use different charging methods to come it is charged in recycling process.Select optimal charging method to be, should consider the factors such as frequency of utilization, discharge-rate, purposes of battery.For this reason, different charging methods are done with concise and to the point general introduction.
Constant current charge
The voltage of the AC power of charger can fluctuate usually, need adopt dc constant flowing power, i.e. a constant current charger during charging.When adopting constant current charge, can make battery have higher charge frequency, can decide charging whether to end according to the charging interval very easily, also can change the number of battery.Usually, also can be in series connection between DC power supply and the battery resistance, produce constant electric current to increase the circuit internal resistance.Resistance value is adjusted according to the electric current in charging latter stage, makes electric current can not surpass the permissible value of battery.
Constant voltage charge
When battery was carried out constant voltage charge, the voltage at battery two ends had determined charging current.Under this charging modes, charging initial stage current value ratio is bigger, and charging electric current in latter stage can diminish.Charging current can change along with the fluctuation of voltage, so the maximum of charging current should be arranged on charging voltage when the highest, in order to avoid make over-charging of battery.In addition, in this kind charging modes, charging charging voltage in latter stage can descend after reaching peak value.The charging current of battery will become greatly, can cause battery temperature to raise, and along with battery temperature raises, voltage descends, and will cause the thermal runaway of battery, the performance of infringement battery.
Floating charge
Behind the battery full charge, the best approach of keeping battery capacity is that adding constant at the battery pack two ends is to press.In other words, behind the battery full charge, charger should be exported constant float charge voltage.Under floating charge state, the electric current that charges into battery should be able to replenish the electric weight that battery loses because of self discharge.Float charge voltage can not be too high, in order to avoid shorten the life-span of battery because seriously overcharging.
So for one can compatible two kinds of batteries charger, how judging cell types and how it effectively being charged just becomes the focus that the research staff researches and develops.
Summary of the invention
The utility model is at the deficiencies in the prior art, a kind of dual-purpose intelligent charger is provided, the utility model is judged cell types according to electric weight in the battery, after determining cell types, adopt different patterns to charge to different batteries, thereby guarantee the effect of charging, really reach dual-use.
The utility model is achieved through the following technical solutions:
The dual-purpose intelligent charger comprises the lowering and stabilizing blood pressure unit, and the alternating current of high pressure is transformed to stable charging voltage; And
Be connected in the charhing unit of lowering and stabilizing blood pressure unit output, this charhing unit comprises following circuit structure:
Output unit is transported to the charging voltage of lowering and stabilizing blood pressure unit output and is recharged battery; And
The charging control unit that is electrically connected with output unit is sampled to the output voltage of output unit, and charge mode control output unit in accordance with regulations charges to battery; And
The identification judging unit, the voltage of sampling battery is judged cell types and is exported switch command; And
Switch control unit, according to the switch command of identification judging unit output, the charge mode of control charging control unit.
Further, described charging control unit comprises first comparator, feedback resistance, second comparator and floating charge controlling resistance, the in-phase input end of first comparator is connected by the output of feedback resistance with this first comparator, the reverse input end of first comparator is connected with the inverting input of second comparator, and the input in the same way of second comparator is connected with the floating charge controlling resistance.
Further, described identification judging unit is a comparator.
Further, described switch control unit is made up of operational amplifier and metal-oxide-semiconductor, and metal-oxide-semiconductor is connected in the output of operational amplifier.
Adopt such scheme, after judging unit determines cell types by identification, lithium battery has been adopted constant current-constant voltage mode, and lead-acid battery is adopted three segmented modes, thereby guaranteed the effect of charging, really reached dual-use.Two kinds of charging circuits share, and fully accomplish effect energy-conservation, that fall this.It is selected by switch control unit at the constant current-constant voltage charging circuit of lithium battery with at three sections chargings of lead-acid battery.
Below in conjunction with accompanying drawing and the formula of specifically implementing the utility model is described further.
Description of drawings
Fig. 1 is circuit block diagram of the present utility model;
Fig. 2 is the circuit diagram of charhing unit among Fig. 1;
Embodiment
With reference to Fig. 1, dual-purpose intelligent charger of the present utility model comprises lowering and stabilizing blood pressure unit 1, and the alternating current of high pressure is transformed to stable charging voltage.Be connected in the charhing unit 2 of lowering and stabilizing blood pressure unit output, this charhing unit comprises following circuit structure:
The charging control unit that is electrically connected with output unit is sampled to the output voltage of output unit, and charge mode control output unit in accordance with regulations charges to battery.Described charging control unit comprises first comparator 22, feedback resistance 23, second comparator 24 and floating charge controlling resistance 25.The in-phase input end of first comparator 22 is the constant current sampling end, the in-phase input end of first comparator 22 is connected with the output of this first comparator 22 by feedback resistance 23, and the reverse input end of first comparator 22 is connected with the inverting input of second comparator 24.The in-phase input end of second comparator 24 is the constant voltage sampling end, and the input in the same way of second comparator 24 is connected with floating charge controlling resistance 25.And identification judging unit 26, the voltage of sampling battery is judged cell types and is exported switch command; Described identification judging unit is a comparator, if the rated voltage of battery is 3.7V, then can draw this battery by comparing to determine of comparator is lithium battery, if the voltage of battery is higher than 3.7V, then can draw this battery by comparing to determine of comparator is lead-acid battery.And switch control unit 27, according to the switch command of identification judging unit output, the charge mode of control charging control unit.Described switch control unit is made up of operational amplifier and metal-oxide-semiconductor, and metal-oxide-semiconductor is connected in the output of operational amplifier.By switch control unit, the connecting and disconnecting of control floating charge controlling resistance 25 are if lithium battery then adopts the pattern of constant current-constant voltage to charge.If lead-acid battery then adopts the mode of constant current-constant voltage-floating charge to charge.
Claims (4)
1. the dual-purpose intelligent charger is characterized in that, comprises the lowering and stabilizing blood pressure unit, and the alternating current of high pressure is transformed to stable charging voltage; And
Be connected in the charhing unit of lowering and stabilizing blood pressure unit output, this charhing unit comprises following circuit structure:
Output unit is transported to the charging voltage of lowering and stabilizing blood pressure unit output and is recharged battery; And
The charging control unit that is electrically connected with output unit is sampled to the output voltage of output unit, and charge mode control output unit in accordance with regulations charges to battery; And
The identification judging unit, the voltage of sampling battery is judged cell types and is exported switch command; And
Switch control unit, according to the switch command of identification judging unit output, the charge mode of control charging control unit.
2. dual-purpose intelligent charger according to claim 1, it is characterized in that, described charging control unit comprises first comparator, feedback resistance, second comparator and floating charge controlling resistance, the in-phase input end of first comparator is connected by the output of feedback resistance with this first comparator, the reverse input end of first comparator is connected with the inverting input of second comparator, and the input in the same way of second comparator is connected with the floating charge controlling resistance.
3. dual-purpose intelligent charger according to claim 1 is characterized in that, described identification judging unit is a comparator.
4. dual-purpose intelligent charger according to claim 1 is characterized in that, described switch control unit is made up of operational amplifier and metal-oxide-semiconductor, and metal-oxide-semiconductor is connected in the output of operational amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206950790U CN203071632U (en) | 2012-12-16 | 2012-12-16 | Dual-purpose intelligent charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206950790U CN203071632U (en) | 2012-12-16 | 2012-12-16 | Dual-purpose intelligent charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203071632U true CN203071632U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206950790U Expired - Fee Related CN203071632U (en) | 2012-12-16 | 2012-12-16 | Dual-purpose intelligent charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203071632U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790358A (en) * | 2016-04-08 | 2016-07-20 | 北京奇虎科技有限公司 | Battery charging circuit |
| CN106356967A (en) * | 2016-10-31 | 2017-01-25 | 合肥联宝信息技术有限公司 | Adapter and electronic equipment with adapter |
-
2012
- 2012-12-16 CN CN2012206950790U patent/CN203071632U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790358A (en) * | 2016-04-08 | 2016-07-20 | 北京奇虎科技有限公司 | Battery charging circuit |
| CN106356967A (en) * | 2016-10-31 | 2017-01-25 | 合肥联宝信息技术有限公司 | Adapter and electronic equipment with adapter |
| CN106356967B (en) * | 2016-10-31 | 2019-03-12 | 合肥联宝信息技术有限公司 | A kind of adapter and the electronic equipment configured with the adapter |
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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: 20130717 Termination date: 20181216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |