CN103746433B - The device of multi-functional charge-discharge circuit and composition thereof - Google Patents
The device of multi-functional charge-discharge circuit and composition thereof Download PDFInfo
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- CN103746433B CN103746433B CN201410033435.6A CN201410033435A CN103746433B CN 103746433 B CN103746433 B CN 103746433B CN 201410033435 A CN201410033435 A CN 201410033435A CN 103746433 B CN103746433 B CN 103746433B
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Abstract
The invention discloses the device of a kind of multi-functional charge-discharge circuit and composition thereof, for carrying out discharge and recharge to lithium battery, this charge-discharge circuit comprises charging circuit digital-control constant-flow source, discharge circuit digital-control constant-flow source and battery voltage supervisory circuit; Described charging circuit digital-control constant-flow source comprises the first operational amplifier, the first Darlington transistor, the first resistance, the first inductance and the 5th resistance, and described discharge circuit digital-control constant-flow source comprises the second operational amplifier, the second Darlington transistor, the second resistance, the second inductance and the 6th resistance.Present invention employs the charge-discharge circuit based on digital-control constant-flow source technology and device, the size of current of discharge and recharge can be conveniently set, be applicable to the cell of various amount of capacity, charge-discharge circuit can gather charging/discharging voltage and current data simultaneously, LCD display shows charge-discharge characteristic curve in real time, and charging and discharging currents can be calculated battery capacity to time integral, also charging and discharging lithium battery characteristic curve can be transferred to Computer display or preservation.
Description
Technical field
The present invention relates to discharge and recharge technical field, in particular, the particularly device of a kind of multi-functional charge-discharge circuit and composition thereof.
Background technology
Growing along with battery technology, the capacity of cell is increasing, but whether reaching its nominal capacity to the actual capacity of cell lacks convenient effective detection means.Cell charger in the market can only complete charge function, and can the actual capacity that cannot detect battery reach its nominal capacity.Existing cell charger does not possess discharging function in addition, does not more possess the function arranging charging and discharging currents size, cannot take into account high capacity cell and small-capacity cells.If use big current to small-capacity cells discharge and recharge, potential safety hazard will be there is; If use small area analysis to high capacity cell discharge and recharge, then charge and discharge process needs for a long time.
Summary of the invention
The object of the present invention is to provide the device of a kind of multi-functional charge-discharge circuit and composition thereof.
In order to solve problem set forth above, the technical solution used in the present invention is:
A kind of multi-functional charge-discharge circuit, for carrying out discharge and recharge to lithium battery, this charge-discharge circuit comprises charging circuit digital-control constant-flow source, discharge circuit digital-control constant-flow source and battery voltage supervisory circuit; Described charging circuit digital-control constant-flow source comprises the first operational amplifier, the first Darlington transistor, the first resistance, the first inductance and the 5th resistance, the output of described first operational amplifier is connected with the transistor base before the first Darlington transistor through the first resistance, the input cathode of the first operational amplifier is through the 5th grounding through resistance, first Darlington transistor transistor emitter is below connected with the first inductance, and described battery voltage supervisory circuit is connected between the first inductance and the 5th resistance; Described discharge circuit digital-control constant-flow source comprises the second operational amplifier, the second Darlington transistor, the second resistance, the second inductance and the 6th resistance, the output of described second operational amplifier is connected with the transistor base before the second Darlington transistor through the second resistance, the input cathode of the second operational amplifier is connected with the 5th resistance through the 6th resistance, second Darlington transistor triode emitter is below connected with the 6th resistance through the second inductance, and the transistor collector before the second Darlington transistor is connected with the first inductance after being connected with transistor collector below; Described battery voltage supervisory circuit is also connected to the two ends of lithium battery.
According to a preferred embodiment of the invention: described battery voltage supervisory circuit comprises the third and fourth resistance, described 3rd resistance one end is connected with the first inductance, the other end is connected with the 5th resistance through the 4th resistance, and described third and fourth resistance is connected to the two ends of lithium battery.
The present invention also provides a kind of device based on above-mentioned multi-functional charge-discharge circuit composition, comprise controller unit, the LCD display be connected with controller unit, push-button unit and USB turn serial port unit, described controller unit is connected with the input anode of the first operational amplifier of multi-functional charge-discharge circuit and the input anode of the second operational amplifier respectively, this device also comprises the power subsystem be connected with LCD display, controller unit and multi-functional charge-discharge circuit, and described multi-functional charge-discharge circuit is connected with lithium battery.
According to a preferred embodiment of the invention: also comprise shell, and the printed circuit board (PCB) be located in shell, described power subsystem, controller unit, multi-functional charge-discharge circuit and USB turn serial port unit and are all integrated on printed circuit board (PCB), described lithium battery is located at the inside of shell, and described LCD display and push-button unit are all located at the front of shell.
According to a preferred embodiment of the invention: also comprise the anode interface be located on shell, battery cathode interface, USB interface and power interface, described anode interface is connected with lithium battery with battery cathode interface, described USB interface and USB turn serial port unit and are connected, and described power interface is connected with power subsystem.
According to a preferred embodiment of the invention: described power subsystem comprises the switching regulator IC and linear voltage stabilization chip that connect successively, the output of described switching regulator IC is also connected with multi-functional charge-discharge circuit, and the output of described linear voltage stabilization chip is also connected with LCD display and controller unit.
According to a preferred embodiment of the invention: the controller unit of described controller unit to be model be STM32F407.
Compared with prior art, beneficial effect of the present invention is: present invention employs the charge-discharge circuit based on digital-control constant-flow source technology and device, the size of current of discharge and recharge can be conveniently set, be applicable to the cell of various amount of capacity, charge-discharge circuit can gather charging/discharging voltage and current data simultaneously, LCD display shows charge-discharge characteristic curve in real time, and charging and discharging currents can be calculated battery capacity to time integral, also can by battery charging/discharging characteristic curve transmission to Computer display or preservation.
Accompanying drawing explanation
Fig. 1. be the circuit diagram of multi-functional charge-discharge circuit of the present invention.
Fig. 2. be the structural representation of the device of multi-functional charge-discharge circuit composition of the present invention.
Fig. 3. be the structured flowchart of the device of multi-functional charge-discharge circuit composition of the present invention.
Fig. 4. be the circuit diagram of power subsystem in the device of multi-functional charge-discharge circuit composition of the present invention.
Fig. 5. be the circuit diagram of the device middle controller unit of multi-functional charge-discharge circuit composition of the present invention.
Description of reference numerals: 1, shell, 2, LCD display, 3, push-button unit, 4, anode interface, 5, battery cathode interface, 6.USB interface, 7, power interface, 8, printed circuit board (PCB), 9, power subsystem, 10, controller unit, 11, multi-functional charge-discharge circuit, 12, lithium battery, 13, USB turns serial port unit.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Consult shown in Fig. 1, the invention provides a kind of multi-functional charge-discharge circuit, for carrying out discharge and recharge to battery, this charge-discharge circuit 11 comprises charging circuit digital-control constant-flow source, discharge circuit digital-control constant-flow source and battery voltage supervisory circuit, described charging circuit digital-control constant-flow source comprises the first operational amplifier A 1, first Darlington transistor J1, the first resistance R1, the first inductance L 1 and the 5th resistance R5, the output of described first operational amplifier A 1 is connected with the transistor base before the first Darlington transistor J1 through the first resistance R1, the input cathode of the first operational amplifier A 1 is through the 5th resistance R5 ground connection, first Darlington transistor J1 transistor emitter is below connected with the first inductance L 1, and described battery voltage supervisory circuit is connected between the first inductance L 1 and the 5th resistance R5, described discharge circuit digital-control constant-flow source comprises the second operational amplifier A 2, second Darlington transistor J2, second resistance R2, second inductance L 2 and the 6th resistance R6, the output of described second operational amplifier A 2 is connected with the transistor base before the second Darlington transistor J2 through the second resistance R2, the input cathode of the second operational amplifier A 2 is connected with the 5th resistance R5 through the 6th resistance R6, second Darlington transistor J2 triode emitter is below connected with the 6th resistance R6 through the second inductance L 2, transistor collector before second Darlington transistor J2 is connected with the first inductance L 1 after being connected with transistor collector below, described battery voltage supervisory circuit is also connected to the two ends of battery.
Battery voltage supervisory circuit in the present invention comprises the third and fourth resistance (R3, R4), described 3rd resistance R3 one end is connected with the first inductance L 1, the other end is connected with the 5th resistance R5 through the 4th resistance R4, described third and fourth resistance (R3, R4) is connected to the two ends of battery.
Wherein, the digital-to-analogue conversion that the input anode DA1 of the first operational amplifier A 1 and input anode DA2 of the second operational amplifier A 2 is outside controller unit 10 exports, and when DA2 voltage is zero, can control charging current by DA1 magnitude of voltage; When DA1 voltage is zero, by DA2 magnitude of voltage controlled discharge size of current, can obtains actual charge current size by ADO magnitude of voltage through converting simultaneously, actual discharge size of current can be obtained, by AD1 by AD2 magnitude of voltage through converting
The difference of magnitude of voltage and ADO magnitude of voltage can convert and obtain actual cell voltage size, namely the size controlling charging and discharging currents is in real time achieved, and Real-Time Monitoring charging and discharging currents and battery voltage value, the charging and discharging currents of Real-time Collection and voltage data, can be used for drawing charge-discharge characteristic curve, charging and discharging currents can be calculated battery capacity to time integral.
Consult shown in Fig. 2 and Fig. 3, the present invention also provides a kind of device based on above-mentioned multi-functional charge-discharge circuit 11 composition, comprise controller unit 1O, the LCD display 2 be connected with controller unit 1O, push-button unit 3 and USB turn serial port unit 13, described controller unit 1O is connected with the input anode of the first operational amplifier A 1 of multi-functional charge-discharge circuit 11 and the input anode of the second operational amplifier A 2 respectively, this device also comprises and LCD display 2, the power subsystem 9 that controller unit 10 is connected with multi-functional charge-discharge circuit 11, described multi-functional charge-discharge circuit 11 is connected with lithium battery 12.
Concrete, device of the present invention also comprises shell 1, and the printed circuit board (PCB) 8 be located in shell 1, power subsystem 9, controller unit 10, multi-functional charge-discharge circuit 11 and USB turn serial port unit 13 and are all integrated on printed circuit board (PCB) 8, lithium battery 12 is located at the inside of shell 1, and LCD display 2 and push-button unit 3 are all located at the front of shell 1.And this device also comprises the anode interface 4 be located on shell 1, battery cathode interface 5, USB interface 6 and power interface 7, anode interface 4 is connected with lithium battery 12 with battery cathode interface 5, USB interface 6 and USB turn serial port unit 13 and are connected, and power interface 7 is connected with power subsystem 9.
Wherein, power subsystem 9 is LCD display 2, controller unit 1O and multi-functional charge-discharge circuit 11 provide power supply, and controller unit 1O connects LCD display 2, and export control signal, control the display information of LCD display 2, controller unit 10 connects multi-functional charge-discharge circuit 11 (namely DA1 and DA2), obtain the voltage of lithium battery 12 and charging and discharging currents information and export the charging and discharging currents size that control signal controls multi-functional charge-discharge circuit 11, controller unit 10 connects push-button unit 3, for obtaining key information, complete the setting of charging and discharging currents, and controller unit 10 connects USB turns serial port unit 13, can realize the charge-discharge characteristic curve data of lithium battery 12 being sent to computer check or preserve (shown in composition graphs 5).
Consult shown in Fig. 4, power subsystem 9 in the present invention comprises the switching regulator IC and linear voltage stabilization chip that connect successively, wherein, the output of switching regulator IC is also connected with multi-functional charge-discharge circuit 11, namely, input DC power provides power supply to after switching regulator IC (model is LM2596) voltage stabilizing to 9V multi-functional charge-discharge circuit 11, and the output of linear voltage stabilization chip is also connected with LCD display 2 and controller unit 10.Be about to provide power supply to controller unit 10 and LCD display 2 after linear voltage stabilizing chip (model is LM7805) voltage stabilizing to 5V again through switching regulator IC voltage stabilizing to the voltage of 9V.
In preferred version in the present invention, consult shown in Fig. 5, the model that controller unit 10 adopts is STM32F407, certainly, also can select other model as required and not affect enforcement of the present invention.
Visible by above description, the device of multi-functional charge-discharge circuit of the present invention and composition thereof is owing to have employed digital-control constant-flow source as charge-discharge circuit, can charging and discharging currents size be conveniently set, be applicable to the cell of various amount of capacity, and charge-discharge characteristic curve is shown in real time in LCD display, can battery total capacity be calculated after discharge and recharge completes, simultaneously also can by battery charging/discharging characteristic curve transmission to Computer display or preservation.
Above-described embodiment is the present invention's preferably execution mode; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (6)
1., based on the multi-functional charge and discharge device that multi-functional charge-discharge circuit (11) forms, it is characterized in that:
Multi-functional charge-discharge circuit (11) comprises charging circuit digital-control constant-flow source, discharge circuit digital-control constant-flow source and battery voltage supervisory circuit, described charging circuit digital-control constant-flow source comprises the first operational amplifier (A1), first Darlington transistor (J1), first resistance (R1), first inductance (L1) and the 5th resistance (R5), the output of described first operational amplifier (A1) is connected with the transistor base before in the first Darlington transistor (J1) through the first resistance (R1), the input cathode of the first operational amplifier (A1) is through the 5th resistance (R5) ground connection, in first Darlington transistor (J1), transistor emitter is below connected with the first inductance (L1), described battery voltage supervisory circuit is connected between the first inductance (L1) and the 5th resistance (R5), described discharge circuit digital-control constant-flow source comprises the second operational amplifier (A2), second Darlington transistor (J2), second resistance (R2), second inductance (L2) and the 6th resistance (R6), the output of described second operational amplifier (A2) is connected with the transistor base before in the second Darlington transistor (J2) through the second resistance (R2), the input cathode of the second operational amplifier (A2) is connected with the 5th resistance (R5) through the 6th resistance (R6), in second Darlington transistor (J2), triode emitter is below connected with the 6th resistance (R6) through the second inductance (L2), transistor collector before in second Darlington transistor (J2) is connected with the first inductance (L1) after being connected with transistor collector below, described battery voltage supervisory circuit is also connected to the two ends of lithium battery (12),
Multi-functional charge and discharge device comprises controller unit (10), the LCD display (2) be connected with controller unit (10), push-button unit (3) and USB turn serial port unit (13), described controller unit (10) is connected with the input anode of first operational amplifier (A1) of multi-functional charge-discharge circuit (11) and the input anode of the second operational amplifier (A2) respectively, this device also comprises and LCD display (2), the power subsystem (9) that controller unit (10) is connected with multi-functional charge-discharge circuit (11), described multi-functional charge-discharge circuit (11) is connected with lithium battery (12).
2. multi-functional charge and discharge device according to claim 1, it is characterized in that: also comprise shell (1), and the printed circuit board (PCB) (8) be located in shell (1), described power subsystem (9), controller unit (10), multi-functional charge-discharge circuit (11) and USB turn serial port unit (13) and are all integrated on printed circuit board (PCB) (8), described lithium battery (12) is located at the inside of shell (1), and described LCD display (2) and push-button unit (3) are all located at the front of shell (1).
3. multi-functional charge and discharge device according to claim 2, it is characterized in that: also comprise the anode interface (4) be located on shell (1), battery cathode interface (5), USB interface (6) and power interface (7), described anode interface (4) is connected with lithium battery (12) with battery cathode interface (5), described USB interface (6) and USB turn serial port unit (13) and are connected, and described power interface (7) is connected with power subsystem (9).
4. multi-functional charge and discharge device according to claim 1, it is characterized in that: described power subsystem (9) comprises the switching regulator IC and linear voltage stabilization chip that connect successively, the output of described switching regulator IC is also connected with multi-functional charge-discharge circuit (11), and the output of described linear voltage stabilization chip is also connected with LCD display (2) and controller unit (10).
5. multi-functional charge and discharge device according to claim 1, is characterized in that: the controller unit of described controller unit (10) to be model be STM32F407.
6. multi-functional charge and discharge device according to claim 1, it is characterized in that: described battery voltage supervisory circuit comprises the third and fourth resistance (R3, R4), described 3rd resistance (R3) one end is connected with the first inductance (L1), the other end is connected with the 5th resistance (R5) through the 4th resistance (R4), described third and fourth resistance (R3, R4) is connected to the two ends of lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033435.6A CN103746433B (en) | 2014-01-24 | 2014-01-24 | The device of multi-functional charge-discharge circuit and composition thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410033435.6A CN103746433B (en) | 2014-01-24 | 2014-01-24 | The device of multi-functional charge-discharge circuit and composition thereof |
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| Publication Number | Publication Date |
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| CN103746433A CN103746433A (en) | 2014-04-23 |
| CN103746433B true CN103746433B (en) | 2016-01-20 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204103515U (en) * | 2014-06-16 | 2015-01-14 | 叶林松 | A kind of ni-mh, nickel-cadmium cell analysis by charged and discharged device |
| CN105319514A (en) * | 2015-11-16 | 2016-02-10 | 三峡大学 | An accumulator capacity detection method |
| CN105629176A (en) * | 2015-12-30 | 2016-06-01 | 上海与德通讯技术有限公司 | Battery capacity test method, rechargeable battery charging circuit and electronic equipment |
| CN113013940A (en) * | 2021-02-20 | 2021-06-22 | 北京银冈科技有限公司 | System for calculating battery capacity by using protection board and charger |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07128418A (en) * | 1993-11-05 | 1995-05-19 | Shindengen Electric Mfg Co Ltd | Constant a.c. charge/discharge circuit of battery and battery test device with it |
| CN201178322Y (en) * | 2008-04-14 | 2009-01-07 | 河北科技大学 | Intelligent charger for novel digital controlled accumulator |
| CN202720321U (en) * | 2012-08-03 | 2013-02-06 | 惠州市蓝微电子有限公司 | Voltage detection circuit of high-string number lithium battery pack and battery pack protection circuit applying the same |
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2014
- 2014-01-24 CN CN201410033435.6A patent/CN103746433B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07128418A (en) * | 1993-11-05 | 1995-05-19 | Shindengen Electric Mfg Co Ltd | Constant a.c. charge/discharge circuit of battery and battery test device with it |
| CN201178322Y (en) * | 2008-04-14 | 2009-01-07 | 河北科技大学 | Intelligent charger for novel digital controlled accumulator |
| CN202720321U (en) * | 2012-08-03 | 2013-02-06 | 惠州市蓝微电子有限公司 | Voltage detection circuit of high-string number lithium battery pack and battery pack protection circuit applying the same |
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