CN204103515U - A kind of ni-mh, nickel-cadmium cell analysis by charged and discharged device - Google Patents
A kind of ni-mh, nickel-cadmium cell analysis by charged and discharged device Download PDFInfo
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- CN204103515U CN204103515U CN201420320740.9U CN201420320740U CN204103515U CN 204103515 U CN204103515 U CN 204103515U CN 201420320740 U CN201420320740 U CN 201420320740U CN 204103515 U CN204103515 U CN 204103515U
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- module
- charged
- chip microcomputer
- sampling resistor
- circuit
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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
The utility model discloses a kind of ni-mh, nickel-cadmium cell analysis by charged and discharged device, comprise single-chip microcomputer, LCD display, Switching Power Supply supply module, also comprise numerical control constant current charge-discharge road module, USB communication module, battery voltage acquisition circuit, described single-chip microcomputer signal output part is by numerical control constant current charge-discharge road module and cell communication, and described Chip Microcomputer A N pin is communicated with anode by battery voltage acquisition circuit.The utility model has the function of quick charge, discharge examination, cyclic activation and adjustment charging and discharging currents size compared with existing analysis by charged and discharged device, user just can check cell operating status by LCDs, add temperature sensor real-time perception working temperature in addition, avoid causing danger because battery performance is bad, four autonomous channels can be realized when not changing circuit and work simultaneously; Comprise the repertoire of common nickel-hydrogen charger; Degree of intelligence is high, and the features such as work in every state monitored in real time by single-chip microcomputer.
Description
Technical field
The utility model relates to a kind of analysis by charged and discharged device, particularly relates to a kind of ni-mh, nickel-cadmium cell analysis by charged and discharged device.
Background technology
Current ni-mh, nickel-cadmium cell use quite universal, and it has and can repeatedly charge, and the features such as discharging current is large, Memorability is low widely use in the electronic products such as electronic toy, cordless telephone, camera.Although ni-mh, nickel-cadmium cell have lot of advantages, because in production process, product quality is very different, the charging interval time obviously shortens in use for some time, and user has to buy new battery from new, causes environmental pollution, customer investment high cost.In the middle of discarded battery, often there is battery greatly normally to use.Some batteries cause charging and discharging currents to weaken because storage time is oversize, can activate electricity by repeated charge.Other batteries may be empty mark capacity, and user can not understand in time.Native system is that user understands battery status in time, the use battery of science provides solution, avoids user's overlapping investment to sink money and also causes environmental pollution.
Utility model content
For above-mentioned prior art Problems existing, and the convenient various performance parameters grasping battery of user, long-term untapped battery is carried out to ni-mh, the nickel-cadmium cell analysis by charged and discharged device of activation manipulation.
The technical solution of the utility model is: a kind of ni-mh, nickel-cadmium cell analysis by charged and discharged device, comprise single-chip microcomputer, LCD display, Switching Power Supply supply module, also comprise numerical control constant current charge-discharge road module, USB communication module, battery voltage acquisition circuit, described single-chip microcomputer signal output part is by numerical control constant current charge-discharge road module and cell communication, and described Chip Microcomputer A N pin is communicated with anode by battery voltage acquisition circuit;
As preferably, described numerical control constant current charge-discharge road module is made up of reference voltage source, D/A converter, control circuit and charge-discharge circuit, and the described reference voltage source signal of telecommunication is electrically connected with charge-discharge circuit by D/A converter, control circuit;
As preferably, described charge-discharge circuit comprises sampling resistor R7, N channel field-effect pipe, P-channel field-effect transistor (PEFT) pipe, and battery to be charged, and described sampling resistor R7, N channel field-effect pipe, P-channel field-effect transistor (PEFT) pipe, battery to be charged are connected successively;
As preferably, described control circuit comprises sampling resistor R2, sampling resistor R3, sampling resistor R4, sampling resistor R6, safe Resistance R5, operational amplifier, described employing sampling resistor R2 one end is electrically connected with reference voltage source, its other end is electrically connected with the positive input terminal of operational amplifier, described sampling resistor R3 one end is connected with D/A converter, its other end is electrically connected with operational amplifier negative input end, described sampling resistor R4 one end is connected with sampling resistor R7 input, its other end is electrically connected with operational amplifier positive input terminal, described sampling resistor R6 one end is connected with sampling resistor R7 output, its other end is electrically connected with operational amplifier negative input end, the output of described operational amplifier passes through the N channel field-effect pipe of safe Resistance R5 and charge-discharge circuit, P-channel field-effect transistor (PEFT) pipe is communicated with,
As preferably, described D/A converter is serial four road transducer, its four paths is connected to respectively one group of control circuit and charge-discharge circuit;
As preferably, also comprise section-type LCD driver module, described single-chip microcomputer is communicated with LCD display by section-type LCD driver module;
As preferably, also comprise host computer, the communication signal output of described single-chip microcomputer is communicated with host computer by USB communication module or USB interface communication module;
As preferably, described single-chip microcomputer is also provided with keyboard circuit module, operating state display module, temperature sensor module, exceptional state alarm module, described keyboard circuit module, operating state display module, temperature sensor module, exceptional state alarm module are communicated with single-chip microcomputer respectively.
The beneficial effects of the utility model are: the utility model has the function of quick charge, discharge examination, cyclic activation and adjustment charging and discharging currents size, and user just can check cell operating status by LCDs.Additionally provide host computer for more professional user, can check operating state by the online enforcement of computer, data are saved to the machine for analyzing purposes.Add temperature sensor real-time perception working temperature in addition, avoid causing danger because battery performance is bad.With low cost, four autonomous channels can be realized when not changing circuit and work simultaneously; Powerful, comprise the repertoire of common nickel-hydrogen charger.The popularization of this product can be country and reduces a large amount of social cost.
Accompanying drawing explanation
Fig. 1 is the utility model system architecture diagram;
Fig. 2 is switch voltage-stabilizing circuit schematic diagram;
Fig. 3 is battery voltage acquisition modular circuit schematic diagram;
Fig. 4 is numerical control constant current charge-discharge circuit theory diagrams;
Fig. 5 is section-type LCD display driver moding circuit schematic diagram;
Fig. 6 is keyboard circuit schematic diagram;
Fig. 7 is status indicator lamp modular circuit schematic diagram
Fig. 8 is USB communication module circuit theory diagrams.
Embodiment
Embodiment: as a kind of execution mode of the present utility model, a kind of ni-mh, nickel-cadmium cell analysis by charged and discharged device as shown in Figure 1, comprise single-chip microcomputer, LCD display, Switching Power Supply supply module, also comprise numerical control constant current charge-discharge road module, USB communication module, battery voltage acquisition circuit, described single-chip microcomputer signal output part is by numerical control constant current charge-discharge road module and cell communication, and described Chip Microcomputer A N pin is communicated with anode by battery voltage acquisition circuit.Described numerical control constant current charge-discharge road module is made up of reference voltage source, D/A converter, control circuit and charge-discharge circuit, and the described reference voltage source signal of telecommunication is electrically connected with charge-discharge circuit by D/A converter, control circuit.
1. switching circuit module
Native system adopts ACT30 to be the switching circuit of core, operating frequency 65KHz.This circuit has that circuit is simple, input voltage is wide, efficiency high, is very beneficial to device miniaturization.Voltage stabilization part adopts error-detecting and the feedback circuit of PC817 optical coupler and TL431 composition.Q2, R11, R12 form output current limiting circuit, and when output current exceedes in limited time, Q2 is conducting to ground, and the feedback current of optocoupler will make ACT30 enter the pattern of having the hiccups.Output+5V provides operating voltage to single-chip microcomputer, LCD display, digital-control constant-flow source, and+2.5V provides power supply for battery charges.Switch voltage-stabilizing circuit schematic diagram as shown in Figure 2.
2. single-chip microcomputer and battery voltage acquisition module
PIC16F886 single-chip microcomputer is 8 middle-grade single-chip microcomputers that Microchip company produces.Inside is integrated with 11 road 10-bit high speed D/A and changes, EEPROM, asynchronous serial communication circuit, electrify restoration circuit etc.Its minimum system only need connect crystal oscillating circuit and power supply gets final product work.LM385 is standard of precision voltage source for D/A converter provides 2.5V reference voltage.The positive pole of sampling battery carries out D/A conversion by connecting Chip Microcomputer A N pin.This circuit conversion precision is 2.44mV.Single Chip Microcomputer (SCM) system and battery voltage acquisition module principle figure are as shown in Figure 3.
3. numerical control constant current charge-discharge circuit
TLC5620 is 8, serial input four tunnel D/A converter, and whole charge-discharge circuit accessible site, in D/A converter, can realize 1 to 2 times of reference voltage and export, and adopts LM385 to provide 2.5V standard of precision voltage source.Resistance R2, R3, R4, R6, R7 sampling resistor, N channel field-effect pipe Q3, P-channel field-effect transistor (PEFT) pipe Q4, operational amplifier U3 form constant-current source circuit, this circuit realiration current sample, amplifier, compare feedback three functions, can accurately realize positive and negative constant flow source charge and discharge control.According to the concept of operational amplifier virtual earth, (V can be drawn
r7-V) × 10=V
dACA-2.5, the voltage (V at resistance R7 two ends can be obtained by formula
r7-V) only and V
dACArelevant, V
r7for the ground voltage value on resistance R7 contact resistance R4 wire, due to without negative supply, the current potential of this position is magnitude of voltage; V is battery both end voltage to be charged, V
dACAfor TLC5620 the 12nd pin output voltage.Therefore the electric current I=(V of constant-current source
dACA-2.5)/R7/10.Multiplication factor is conducive to V
dACAcontrol accurate.Work as V
dACAduring higher than 2.5V, power supply passes through Q1, R7 to battery BAT1 constant current charge; Work as V
dACAduring lower than 2.5V, battery BAT1 is by R7, Q4 constant-current discharge.In circuit, amplifier adopts LM324, and the battery charging and discharging that can realize four autonomous channels controls, and circuit is extremely simple.Single channel numerical control constant current charge-discharge circuit theory diagrams as shown in Figure 4.
Its work cardinal principle is: use 8 Bits Serial D/A converters as control unit, uses 2.5V to export the reference level of analog quantity as D/A.Single-chip microcomputer sends 8 bit-serial digital signals by I/O pin to D/A converter, exports from DACA pin the constant-current source circuit that corresponding analog voltage drives operational amplifier composition.The operation principle of the constant-current source circuit of operational amplifier composition is V
r7with 2.5V reference voltage respectively by resistance R4 (10K), resistance R2 (100K) is connected to the positive input terminal V of operational amplifier
+, according to the positive input terminal V of operational amplifier
+electric current is almost nil, can obtain (V
r7-V
+)/10=(V
+-2.5)/100; V
dACAwith cell voltage V respectively by resistance R3 (100K), R6 (10K) is connected to the negative input end V of operational amplifier
-, according to the negative input end V of operational amplifier
-electric current is almost nil, can obtain (V
dACA-V
-)/100=(V
--V)/10; According to the concept V of operational amplifier virtual earth
+=V
-bring in above-mentioned formula, can (V be obtained
r7-V) × 10=V
dACA-2.5.
Ni-mh, NI-G discharge and recharge detector need to realize the constant current charge (forward constant-current source) to battery and constant-current discharge (negative sense constant-current source) function.The constant-current source circuit palpus employing two utilizing prior art will realize just can bearing is overlapped independently circuit and has been come, and circuit and program are all very complicated, and small product size is large, and reliability is low.For simplifying the complexity of circuit and reduction program, the numerical control constant current charge-discharge circuit of invention adopts a four-way 8 Bits Serial D/A converter as control unit, a four-operational amplifier, can realize four way control constant current charge-discharge functions simultaneously.Circuit uses element few, has the advantages such as control precision is high, safe and reliable, scheduling and planning is easy.
4. section-type LCD driver module
Show the information such as mode of operation, operating current, voltage, internal resistance, capacity, operating time in real time by LCD in the equipment course of work, displaying contents controls in 128 sections, therefore selects HT1621 as display driver unit.This integrated circuit has 1/3 bigoted ratio, 1/4 duty ratio, and 32 × 4 sections of outputs, can meet display needs.In this circuit, HT1621 adopts internal oscillator source, OSCO and OSCI pin is unsettled.Single-chip microcomputer is by J1 to HT1621 input signal, and HT1621 produces corresponding bias voltage and drives LCD display.HT1621 also has audio output function, and by 11,12 pins produce the audio signal of 2KHz or 4KHz, drives buzzer to send exceptional state alarm sound.Section-type LCD display driver moding circuit schematic diagram as shown in Figure 5.
5. keyboard circuit
The operation of native system all functions only needs three buttons, can complete the functions such as cell channel selection, mode of operation selection, operating current selection.This circuit adopts stand-alone keypad to detect, and is connected directly to single-chip microcomputer 3 I/O pins.When button is not pressed, single-chip microcomputer pin is high level; When button is pressed, respective pins becomes low level.Keyboard circuit schematic diagram as shown in Figure 6.
6. status indicator lamp module
The PIC16F886 single-chip processor i/o mouthpiece that native system uses has high level, low level, high resistant three kinds of states.Pull current and sink current all can reach 20mA, can be used for Direct driver LED.This circuit adopts two-way red green diode, and one end is by current-limiting resistance connecting valve power supply+2.5V voltage, and the other end connects the I/O mouth of single-chip microcomputer.The red light emitting diodes conducting when single-chip microcomputer output low level; The green LED conducting when exporting high level; When exporting high-impedance state, light-emitting diode extinguishes.Status indicator lamp module principle figure as shown in Figure 7.
7.USB communication module
USB communication module in native system is the pattern being turned USB by microcontroller serial port asynchronous communication.CH340G is that serial ports TTL turns USB level chip.Single-chip microcomputer TX, RX pin directly connects 3,2 pins of CH340G, and 5,6 pins export D+, D-USB signal.USB communication module schematic diagram as shown in Figure 8.
Above exhaustive presentation is carried out to a kind of ni-mh provided by the utility model, nickel-cadmium cell analysis by charged and discharged device, apply specific case herein to set forth principle of the present utility model and execution mode, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, to change of the present utility model and improve will be possible, and design and the scope of accessory claim defined can not be exceeded, in sum, this description should not be construed as restriction of the present utility model.
Claims (8)
1. a ni-mh, nickel-cadmium cell analysis by charged and discharged device, comprise single-chip microcomputer, LCD display, Switching Power Supply supply module, it is characterized in that: also comprise numerical control constant current charge-discharge road module, USB communication module, battery voltage acquisition circuit, described single-chip microcomputer signal output part is by numerical control constant current charge-discharge road module and cell communication, and described Chip Microcomputer A N pin is communicated with anode by battery voltage acquisition circuit.
2. a kind of ni-mh according to claim 1, nickel-cadmium cell analysis by charged and discharged device, it is characterized in that: described numerical control constant current charge-discharge road module is made up of reference voltage source, D/A converter, control circuit and charge-discharge circuit, the described reference voltage source signal of telecommunication is electrically connected with charge-discharge circuit by D/A converter, control circuit.
3. a kind of ni-mh according to claim 2, nickel-cadmium cell analysis by charged and discharged device, it is characterized in that: described charge-discharge circuit comprises sampling resistor R7, N channel field-effect pipe, P-channel field-effect transistor (PEFT) pipe, and battery to be charged, described sampling resistor R7, N channel field-effect pipe, P-channel field-effect transistor (PEFT) pipe, battery to be charged are connected successively.
4. a kind of ni-mh according to claim 3, nickel-cadmium cell analysis by charged and discharged device, it is characterized in that: described control circuit comprises sampling resistor R2, sampling resistor R3, sampling resistor R4, sampling resistor R6, safe Resistance R5, operational amplifier, described employing sampling resistor R2 one end is electrically connected with reference voltage source, its other end is electrically connected with the positive input terminal of operational amplifier, described sampling resistor R3 one end is connected with D/A converter, its other end is electrically connected with operational amplifier negative input end, described sampling resistor R4 one end is connected with sampling resistor R7 input, its other end is electrically connected with operational amplifier positive input terminal, described sampling resistor R6 one end is connected with sampling resistor R7 output, its other end is electrically connected with operational amplifier negative input end, the output of described operational amplifier passes through the N channel field-effect pipe of safe Resistance R5 and charge-discharge circuit, P-channel field-effect transistor (PEFT) pipe is communicated with.
5. a kind of ni-mh according to claim 1, nickel-cadmium cell analysis by charged and discharged device, is characterized in that: described D/A converter is serial four road transducer, its four paths is connected to respectively one group of control circuit and charge-discharge circuit.
6. a kind of ni-mh according to claim 1, nickel-cadmium cell analysis by charged and discharged device, is characterized in that: also comprise section-type LCD driver module, and described single-chip microcomputer is communicated with LCD display by section-type LCD driver module.
7. a kind of ni-mh according to claim 1, nickel-cadmium cell analysis by charged and discharged device, is characterized in that: also comprise host computer, and the communication signal output of described single-chip microcomputer is communicated with host computer by USB interface communication module.
8. a kind of ni-mh according to claim 1, nickel-cadmium cell analysis by charged and discharged device, it is characterized in that: described single-chip microcomputer is also provided with keyboard circuit module, operating state display module, temperature sensor module, exceptional state alarm module, described keyboard circuit module, operating state display module, temperature sensor module, exceptional state alarm module are communicated with single-chip microcomputer respectively.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420320740.9U CN204103515U (en) | 2014-06-16 | 2014-06-16 | A kind of ni-mh, nickel-cadmium cell analysis by charged and discharged device |
| CN201410267584.9A CN104092251B (en) | 2014-06-16 | 2014-06-16 | Ni-mh battery and nickel-cadmium battery charging and discharging analyzer and charging and discharging method of ni-mh battery and nickel-cadmium battery charging and discharging analyzer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420320740.9U CN204103515U (en) | 2014-06-16 | 2014-06-16 | A kind of ni-mh, nickel-cadmium cell analysis by charged and discharged device |
| CN201410267584.9A CN104092251B (en) | 2014-06-16 | 2014-06-16 | Ni-mh battery and nickel-cadmium battery charging and discharging analyzer and charging and discharging method of ni-mh battery and nickel-cadmium battery charging and discharging analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204103515U true CN204103515U (en) | 2015-01-14 |
Family
ID=56921349
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410267584.9A Expired - Fee Related CN104092251B (en) | 2014-06-16 | 2014-06-16 | Ni-mh battery and nickel-cadmium battery charging and discharging analyzer and charging and discharging method of ni-mh battery and nickel-cadmium battery charging and discharging analyzer |
| CN201420320740.9U Expired - Fee Related CN204103515U (en) | 2014-06-16 | 2014-06-16 | A kind of ni-mh, nickel-cadmium cell analysis by charged and discharged device |
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| CN201410267584.9A Expired - Fee Related CN104092251B (en) | 2014-06-16 | 2014-06-16 | Ni-mh battery and nickel-cadmium battery charging and discharging analyzer and charging and discharging method of ni-mh battery and nickel-cadmium battery charging and discharging analyzer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092251A (en) * | 2014-06-16 | 2014-10-08 | 叶林松 | Ni-mh battery and nickel-cadmium battery charging and discharging analyzer and charging and discharging method of ni-mh battery and nickel-cadmium battery charging and discharging analyzer |
| CN105576770A (en) * | 2016-02-26 | 2016-05-11 | 厦门大学嘉庚学院 | Digital lithium battery charging and discharging device |
Families Citing this family (5)
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| CN106153682A (en) * | 2016-08-31 | 2016-11-23 | 陈戈 | A kind of municipal rail train battery solution testing device and method of testing thereof |
| CN106972557B (en) * | 2017-03-18 | 2024-03-15 | 海汽电子技术芜湖股份有限公司 | NI-MH battery intelligent charging circuit for automobile module and charging realization method |
| CN107394838A (en) * | 2017-07-24 | 2017-11-24 | 浙江工业大学 | A kind of method and device of small-sized Ni-Cr battery management of charging and discharging |
| CN110752648B (en) * | 2019-12-02 | 2024-05-17 | 东莞市石龙富华电子有限公司 | Intelligent battery charging method and circuit for detecting negative voltage increment |
| CN112578288A (en) * | 2020-12-04 | 2021-03-30 | 沈阳航天新光集团有限公司 | Battery charge-discharge recorder system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2593442Y (en) * | 2002-12-12 | 2003-12-17 | 广州擎天实业有限公司电工分公司 | Battery constant current charging-discharging apparatus |
| CN101110521A (en) * | 2007-08-20 | 2008-01-23 | 中兴通讯股份有限公司 | Charging device and method for nickel-hydrogen battery |
| CN101587172B (en) * | 2009-06-19 | 2011-05-04 | 中南大学 | Secondary battery testing system |
| CN103746433B (en) * | 2014-01-24 | 2016-01-20 | 广西电网公司电力科学研究院 | The device of multi-functional charge-discharge circuit and composition thereof |
| CN104092251B (en) * | 2014-06-16 | 2017-01-11 | 叶林松 | Ni-mh battery and nickel-cadmium battery charging and discharging analyzer and charging and discharging method of ni-mh battery and nickel-cadmium battery charging and discharging analyzer |
-
2014
- 2014-06-16 CN CN201410267584.9A patent/CN104092251B/en not_active Expired - Fee Related
- 2014-06-16 CN CN201420320740.9U patent/CN204103515U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092251A (en) * | 2014-06-16 | 2014-10-08 | 叶林松 | Ni-mh battery and nickel-cadmium battery charging and discharging analyzer and charging and discharging method of ni-mh battery and nickel-cadmium battery charging and discharging analyzer |
| CN105576770A (en) * | 2016-02-26 | 2016-05-11 | 厦门大学嘉庚学院 | Digital lithium battery charging and discharging device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104092251A (en) | 2014-10-08 |
| CN104092251B (en) | 2017-01-11 |
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Legal Events
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| 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: 20150114 Termination date: 20160616 |