CN203339784U - Novel automatch-type digital charger - Google Patents
Novel automatch-type digital charger Download PDFInfo
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- CN203339784U CN203339784U CN2013203932102U CN201320393210U CN203339784U CN 203339784 U CN203339784 U CN 203339784U CN 2013203932102 U CN2013203932102 U CN 2013203932102U CN 201320393210 U CN201320393210 U CN 201320393210U CN 203339784 U CN203339784 U CN 203339784U
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Abstract
The utility model relates to a novel automatch-type digital charger. The novel automatch-type digital charger is characterized in that the novel automatch-type digital charger includes a main power converting circuit, a sampling circuit, an A/D converting circuit, a D/A converting circuit, a control switch combination, a drive circuit, and an intelligent control circuit which is an MCU, a switch topology power circuit, a local control and display circuit and a communication interface circuit, wherein the sampling circuit comprises a voltage polarity sampling circuit, a voltage class sampling circuit and a current sampling circuit; the main power converting circuit inputs AC electric supply and DC output of stable voltage is realized through isolation and voltage-reducing conversion of the switch topology power circuit for making preparation of charging power output; the MCU, as a core for control, is connected with a control circuit of the main power converting circuit through the drive circuit directly or through the D/A converting circuit and the drive circuit successively for controlling output voltage and output current of the main power converting circuit.
Description
Technical field
The utility model belongs to the battery charger technical field, is specifically related to a kind of new type auto matched digital charge device.
Background technology
Along with the development of battery technology, new rechargeable battery kind constantly occurs.Each rechargeable battery all has its pluses and minuses, thus should cause the more phenomenon of market rechargeable battery kind, as lithium ion battery, Ni-Cr battery, Ni-MH battery, lead acid accumulator etc.And the user that these batteries are faced, relevant use and the charge characteristic of large multipair every kind of battery are not special understanding.Often can not be correct battery be charged.Thereby greatly reduce the useful life of battery, caused the waste of the energy, battery contains toxic material mostly simultaneously, and the increase of battery rubbish also can be to environment.What have also can cause the blast of battery because of incorrect charging method, has endangered user's the person and property safety.And the charger on assorted market is mostly so-called special charger, can only fill the battery of a kind of battery or a kind of model, if there is the battery of several or several models to need to adopt a plurality of chargers.Bring great inconvenience to use.Also have so-called universal charger, in most cases also can only be charged to the relevant little battery of a class battery capacity.So also can cause the inconvenience of use.The output parameter of most of chargers is curing simultaneously, be used in strict accordance with relevant requirement.And, for amateur type user, also there is certain difficulty in this operation.
The utility model content
For above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of new type auto matched digital charge device, and charging is efficient, high safety, a tractor serves several purposes, and cost performance is high, characteristics easy to use.
To achieve these goals, the utility model provides following technical scheme:
A kind of new type auto matched digital charge device, comprise main power conversion circuit, sample circuit, the A/D change-over circuit, the D/A change-over circuit, the control switch combination, drive circuit, intelligent control circuit is MCU, the switch topology power circuit, local control and display circuit and communication interface circuit, wherein, described sample circuit comprises the polarity of voltage sample circuit, electric pressure sample circuit and current sampling circuit, main power conversion circuit is inputted electric main, be transformed to the direct current output of burning voltage by switch topology power circuit isolated buck, for the power stage of charging is prepared, MCU is as the core of controlling, directly lead to drive circuit or pass through again drive circuit by the D/A change-over circuit, with the control circuit of main power conversion circuit, link, control output voltage and the output current of main power conversion circuit.
Polarity of voltage sample circuit in described MCU and sample circuit links, determine the polarity of access battery, and the bridge type electric switching circuit in the control switch that comes controlling and driving circuits to link by the drive circuit linked with it combination, carry out corresponding switch motion, realize the switching of output voltage polarity.
Described MCU links by the electric pressure sample circuit in A/D change-over circuit and sample circuit, MCU follows the tracks of the cell voltage of access and determines the electric pressure that accesses battery, MCU is again by the D/A circuit linked with it and the drive circuit linked with the D/A circuit, control the voltage control circuit of main power conversion circuit, realize the setting of charging voltage.
Described MCU links by A/D circuit and current sampling circuit, MCU determines by the electric current approximatioss electric current that charger and battery are complementary, the current control circuit of the main power conversion circuit that MCU controls by the D/A circuit that links with it, drive circuit again, realize the setting of finishing rate.
Described MCU is by the communication interface circuit linked with it, with computer, communicate, realize the Remote configuration of telemonitoring and the charge mode of charged state, MCU controls and display circuit by this locality linked with it, realizes the native monitoring of charge mode configuration and correlation behavior.
The polarity of voltage match circuit, used the bridge type electric switch.
In the electric pressure match circuit, used the cell voltage tracing to determine the charging voltage grade.
Current matching circuit has been used the electric current approximatioss to determine the charging current value of charger.
The circuit core control section carries out digitlization.
Operation principle
Under initial condition, MCU all is placed in the state of closing by the switch of control switch combination, and the set point of the output voltage of power conversion circuit and output current is " 0 ", and output voltage and electric current are zero.Polarity of voltage certainly mates sample circuit one end and MCU links, and the other end and lead-out terminal link.Lead-out terminal is cell input terminal, the sampled signal of the polarity of voltage of this end is given MCU by sample circuit, MCU selects to connect a kind of corresponding polarization state of control switch combination Semi-polarity control switch again by drive circuit after judging, with the polarity of voltage of the battery accessed, be complementary.Charging voltage ratings match sample circuit, an end and MCU link, and the other end and lead-out terminal link.Output accesses the sampled signal of the electric pressure of battery and gives MCU by sample circuit, A/D change-over circuit, control again the voltage control circuit of the power conversion circuit linked with it after MCU judges by D/A change-over circuit, drive circuit, the charging voltage grade that a polarity of voltage with the battery accessed is complementary is set.Charging current is from match circuit, and an end and MCU link, and the other end and output loop link.After charging voltage polarity, ratings match complete, MCU can carry out by controlling the D/A change-over circuit that links with it, drive circuit the current control circuit of power ratio control translation circuit, and the output stage current of charger is incremented to a current value from little.And, in conjunction with corresponding battery terminal voltage voltage variety, judge the optimum value of charging current.And, by the current control circuit of power conversion circuit, by final setting of the limits value point of output charging current, be this value.
MCU and the communication interface circuit linked with it, can communicate with computer, can realize the Remote configuration of telemonitoring and the charge mode of charged state.MCU and this locality linked are with it controlled and display circuit realizes that charge mode configures and the native monitoring of correlation behavior.
beneficial effect
1, charge efficiency is high
This charger, on charging current is determined, has adopted intellectual electric current approximatioss, has realized the optimum Match of charging current, makes the efficiency of charging obtain improving greatly, and the charging interval has saved 60% with respect to common charger after tested.Simultaneously due to what the effect of the matched well of charging voltage and temperature-compensation circuit also made battery capacity, also obtained maximum recovery.
2, charging security is strong
The MCU that passes through of this charger carries out detecting real-time to the temperature of charging stream, charging voltage and the battery of battery, when improper skew occurs a certain index, can stop immediately charging, and produce sound and light alarm, if be connected with host computer, in computer, also can produce corresponding warning indication.Like this greatly improved the fail safe of battery charging.
3, a tractor serves several purposes, cost performance is high
But this charger Auto-matching multiple battery is used, thereby can greatly reduce the usage quantity of charger, but its production cost, just than 2 times of the common charger of same capability, can not be compared but its its useful life and aspect of performance are common chargers.There is thus high cost performance.
4, easy to use
This charger is high intelligent machine, only needs in use several simple settings, can be used.
The user who not quite understands for electronic product, this is a very excellent charger, also can be called " fool " type charger.
5, adopt the software Digital Control, be convenient to the product lossless upgrade
The control core parts of this charger are DSC, and various function great majority realize by software, and the advantage realized with software is: reduce hardware cost, debugging is convenient, also facilitates the lossless upgrade of product simultaneously.
The accompanying drawing explanation
Fig. 1 is the utility model theory diagram.
Embodiment
A kind of new type auto matched digital charge device, comprise main power conversion circuit, sample circuit, the A/D change-over circuit, the D/A change-over circuit, the control switch combination, drive circuit, intelligent control circuit is MCU, the switch topology power circuit, local control and display circuit and communication interface circuit, wherein, described sample circuit comprises the polarity of voltage sample circuit, electric pressure sample circuit and current sampling circuit, main power conversion circuit is inputted electric main, be transformed to the direct current output of burning voltage by switch topology power circuit isolated buck, for the power stage of charging is prepared, MCU is as the core of controlling, directly lead to drive circuit or pass through again drive circuit by the D/A change-over circuit, with the control circuit of main power conversion circuit, link, control output voltage and the output current of main power conversion circuit.
Polarity of voltage sample circuit in described MCU and sample circuit links, determine the polarity of access battery, and the bridge type electric switching circuit in the control switch that comes controlling and driving circuits to link by the drive circuit linked with it combination, carry out corresponding switch motion, realize the switching of output voltage polarity.
Described MCU links by the electric pressure sample circuit in A/D change-over circuit and sample circuit, MCU follows the tracks of the cell voltage of access and determines the electric pressure that accesses battery, MCU is again by the D/A circuit linked with it and the drive circuit linked with the D/A circuit, control the voltage control circuit of main power conversion circuit, realize the setting of charging voltage.
Described MCU links by A/D circuit and current sampling circuit, MCU determines by the electric current approximatioss electric current that charger and battery are complementary, the current control circuit of the main power conversion circuit that MCU controls by the D/A circuit that links with it, drive circuit again, realize the setting of finishing rate.
Described MCU is by the communication interface circuit linked with it, with computer, communicate, realize the Remote configuration of telemonitoring and the charge mode of charged state, MCU controls and display circuit by this locality linked with it, realizes the native monitoring of charge mode configuration and correlation behavior.
The polarity of voltage match circuit, used the bridge type electric switch.
In the electric pressure match circuit, used the cell voltage tracing to determine the charging voltage grade.
Current matching circuit has been used the electric current approximatioss to determine the charging current value of charger.
The circuit core control section carries out digitlization.
Finally it should be noted that: obviously, above-described embodiment is only for this explanation example clearly is described, and is not the restriction to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And the apparent variation of being amplified out thus or change are still among the protection range in this explanation.
Claims (9)
1. a new type auto matched digital charge device, it is characterized in that: comprise main power conversion circuit, sample circuit, the A/D change-over circuit, the D/A change-over circuit, the control switch combination, drive circuit, intelligent control circuit is MCU, the switch topology power circuit, local control and display circuit and communication interface circuit, wherein, described sample circuit comprises the polarity of voltage sample circuit, electric pressure sample circuit and current sampling circuit, main power conversion circuit is inputted electric main, be transformed to the direct current output of burning voltage by switch topology power circuit isolated buck, for the power stage of charging is prepared, MCU is as the core of controlling, directly lead to drive circuit or pass through again drive circuit by the D/A change-over circuit, with the control circuit of main power conversion circuit, link, control output voltage and the output current of main power conversion circuit.
2. digital charge device according to claim 1, it is characterized in that: the polarity of voltage sample circuit in described MCU and sample circuit links, determine the polarity of access battery, and the bridge type electric switching circuit in the control switch that comes controlling and driving circuits to link by the drive circuit linked with it combination, carry out corresponding switch motion, realize the switching of output voltage polarity.
3. digital charge device according to claim 1, it is characterized in that: described MCU links by the electric pressure sample circuit in A/D change-over circuit and sample circuit, MCU follows the tracks of the cell voltage of access and determines the electric pressure that accesses battery, MCU is again by the D/A circuit linked with it and the drive circuit linked with the D/A circuit, control the voltage control circuit of main power conversion circuit, realize the setting of charging voltage.
4. digital charge device according to claim 1, it is characterized in that: described MCU links by A/D circuit and current sampling circuit, MCU determines by the electric current approximatioss electric current that charger and battery are complementary, the current control circuit of the main power conversion circuit that MCU controls by the D/A circuit that links with it, drive circuit again, realize the setting of finishing rate.
5. according to the described digital charge device of claim 1-4 any one, it is characterized in that: described MCU is by the communication interface circuit linked with it, with computer, communicate, realize the Remote configuration of telemonitoring and the charge mode of charged state, MCU controls and display circuit by this locality linked with it, realizes the native monitoring of charge mode configuration and correlation behavior.
6. digital charge device according to claim 5 is characterized in that: the polarity of voltage match circuit, used the bridge type electric switch.
7. digital charge device according to claim 6, is characterized in that: in the electric pressure match circuit, used the cell voltage tracing to determine the charging voltage grade.
8. digital charge device according to claim 7, it is characterized in that: current matching circuit has been used the electric current approximatioss to determine the charging current value of charger.
9. digital charge device according to claim 8, it is characterized in that: the circuit core control section carries out digitlization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203932102U CN203339784U (en) | 2013-07-03 | 2013-07-03 | Novel automatch-type digital charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203932102U CN203339784U (en) | 2013-07-03 | 2013-07-03 | Novel automatch-type digital charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203339784U true CN203339784U (en) | 2013-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203932102U Expired - Fee Related CN203339784U (en) | 2013-07-03 | 2013-07-03 | Novel automatch-type digital charger |
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| CN (1) | CN203339784U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016155320A1 (en) * | 2015-03-30 | 2016-10-06 | 华为技术有限公司 | Charger, terminal device, and charging system |
| CN111030229A (en) * | 2019-12-23 | 2020-04-17 | 中国电子科技集团公司第十八研究所 | Charge-discharge control circuit |
-
2013
- 2013-07-03 CN CN2013203932102U patent/CN203339784U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016155320A1 (en) * | 2015-03-30 | 2016-10-06 | 华为技术有限公司 | Charger, terminal device, and charging system |
| US10601242B2 (en) | 2015-03-30 | 2020-03-24 | Huawei Technologies Co., Ltd. | Micro short protection for charger, terminal device, and charging system |
| US10778031B2 (en) | 2015-03-30 | 2020-09-15 | Huawei Technologies Co., Ltd. | Charger, terminal device, and charging system |
| CN111030229A (en) * | 2019-12-23 | 2020-04-17 | 中国电子科技集团公司第十八研究所 | Charge-discharge control circuit |
| CN111030229B (en) * | 2019-12-23 | 2021-04-20 | 中国电子科技集团公司第十八研究所 | Charge-discharge control circuit |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20170703 |