CN104753158A - SG3525 integrated chip-based single-chip microprocessor control technology charger - Google Patents
SG3525 integrated chip-based single-chip microprocessor control technology charger Download PDFInfo
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- CN104753158A CN104753158A CN201310753726.8A CN201310753726A CN104753158A CN 104753158 A CN104753158 A CN 104753158A CN 201310753726 A CN201310753726 A CN 201310753726A CN 104753158 A CN104753158 A CN 104753158A
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- 238000005516 engineering process Methods 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000007667 floating Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 14
- 229910052744 lithium Inorganic materials 0.000 abstract description 14
- 239000002253 acid Substances 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000013078 crystal Substances 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 230000003750 conditioning effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
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- H02J7/025—
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- H02J7/027—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
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- H02J2007/10—
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides an SG3525 integrated chip-based single-chip microprocessor control technology charger. The charger comprises an AC (Alternate Current) rectifying circuit module 1, a topological structure circuit module 2, a main output circuit module 3, an output switch device module 4, a battery pack 5, an SG3525 chip module 6, a drive circuit module 7, a constant voltage constant current circuit module 8 and an MCU (Micro Control Unit) detection and control circuit module 9. Charging current and charging voltage can be dynamically adjusted according to the state of charge of a lead acid or lithium battery, current square waves of different frequencies are set, and different pauses, namely intermittent charge, is provided for the battery charging process, so that a novel charger which has the advantages of quick charging, long discharge time of a rechargeable battery, namely high labor, no crystal, no dehydration, no heating and long life is realized.
Description
Technical field
The present invention relates to the charger filling single-chip microcomputer control technology, particularly relate to a kind of microcontroller that uses as control device, in battery charging process, give the different pause of necessity and the variable frequency charger of batch (-type) charging.
Background technology
Battery in the market divides plumbic acid and lithium electricity two macrospecies substantially, applies all to some extent from mobile digital product, electric tool, electric bicycle, electric automobile, golf cart to electric bus etc.How quick be full of electricity to battery, and make that battery discharge time is long, the life-span is long, be the important symbol judging charger quality.
For lead-acid battery, its rechargeable electrochemical reactional equation is:
2PbSO
4+ 2H
2o+2e=PbO
2(positive pole)+Pb(negative pole)+2H
2sO
4(electrolyte)
Reaction is carried out at the two poles of the earth, the H that reaction generates
2sO
4at the two poles of the earth, concentration is the highest, and by concentration gradient distribution to concentration low district diffusion, the water that electric discharge is generated afterwards contacts the two poles of the earth and is electrolyzed to produce H
+and O
2, respectively with the PbSO on both positive and negative polarity
4reaction.H
2sO
4concentration diffusion and H
+, O
2move to the two poles of the earth and need the regular hour, the charging meeting constantly electrolysis H do not stopped
2o, but have little time to carry out due to the oxidation/reduction reaction of positive and negative electrode, can H be caused
2, O
2overflow, cause water loss in electrolyte, the PbSO generated after being discharged in the two poles of the earth
4pbO can not be generated by reaction
2, Pb and H
2sO
4, like this, electrolyte reduces, and energy Ratios is previous much lower.
For lithium battery, the available large current charge up to 1C is claimed by numerous producer.In fact, up to the present, the most of lithium battery producers on market, the charging current selected is still 0.25C, and 0.3C selects in only a few producer, under 0.25-0.3C charge condition, lithium battery is full of and is approximately 4 hours, promotes charge rate to 0.5C, the charging interval can be foreshortened to 2-2.5 hour.But lithium battery all has a large amount of lithium ion because of both positive and negative polarity, and fail safe becomes maximum key problem.Continue large current charge, both positive and negative polarity will be made to react insufficient, and cause battery naturally to generate heat, limiting condition can be explosion caused, brings serious safety problem.
Reduce for solving lead-acid battery electrolyte, energy reduces problem, at charger in battery charging process, the dynamic process of diffusion is filled the air according to lead-acid battery polarization response and ion, the current square wave of setting different frequency carries out the charging of interval dwell type to lead-acid battery, charge frequency and dead time carry out necessary change with concentration of electrolyte difference, thus reduce gassing exsiccation phenomenon, make battery life long, charging is full, and in order to pause charging interval of causing of compensatory pause postpones, charging current can be improved, thus promote average charge rate by a relatively large margin, accelerate charging rate.
The both positive and negative polarity caused for solving lithium battery large current charge reacts insufficient, battery generates heat the situation of even exploding naturally, adopts intermittent charge, that is in charging process, give necessary pause, under guarantee big current quick charge advantage, be also obviously of value to lithium battery safety.Along with battery charge state change in charging process, therefore also must dynamic conditioning charge frequency and dead time.
Summary of the invention
For the problem in above-mentioned background technology, the object of invention is to provide one can according to plumbic acid or lithium battery charge state, dynamic conditioning charging current, charging voltage, and set the current square wave of different frequency, different pauses and batch (-type) charging is given in battery charging process, thus it is fast to realize charging, institute's rechargable battery discharge time is long namely exert oneself large, nodeless mesh, do not dewater, do not generate heat the New charger that namely life-span is long.
For realizing this object, the present invention adopts following technical scheme:
Patent of the present invention comprises AC rectification circuit module 1, topological structure circuit module 2, main output circuit module 3, output switch apparatus module 4, battery pack 5, SG3525 integrated chip module 6, drive circuit module 7, constant pressure and flow circuit module 8, MCU Detection & Controling circuit module 9.
AC rectification circuit module 1: for civil power AC is converted to direct current DC, so that Switching Power Supply carries out DC-DC power transfer.
Topological structure circuit module 2: the topographical form being the conversion of a kind of common switch power, produces Rectified alternating current by power switch pipe copped wave, then carries out coupling output by the primary and secondary coil of transformer.
Main output circuit module 3: comprise the circuit such as transformer, output rectification filter, power switch pipe in topological structure circuit module 2 controls the Rectified alternating current after copped wave through the first coil coupling of transformer T1 through pwm signal, again after current rectifying and wave filtering circuit, form main output.
Output switch apparatus module 4: mainly comprise electric-controlled switch element, switch control rule can be carried out by the single-chip microcomputer in MCU Detection & Controling circuit module (9), thus reach the object exporting square wave current, and, by the frequency of control switch, the frequency of output current can be changed.
SG3525 chip module 6: with SG3535 pulse width modulating chip for core, in addition necessary peripheral circuit, form SG3525 chip module 6, this module provides required pwm signal for whole charger, pwm signal is exported to drive circuit module 7 amplify through 14 pin of SG3525 chip, 11 pin, and then driving power switching tube.In addition, 2 pin of SG3525 chip, 8 pin connect constant voltage circuit and the constant-current circuit of constant pressure and flow circuit module 8 respectively, for receiving the voltage and current signal that feedback is come, thus control the pulse duration of pwm signal, and then make stable output.
Drive circuit module 7: be connected to 14 pin of SG3525 chip, 11 pin, can carry out amplification process, carry out copped wave for driving power switching tube by the pwm signal that SG3525 chip exports.
Constant pressure and flow circuit module 8: for detecting the voltage and current signal that charger exports, then feed back to 2 pin of SG3525 chip, 8 pin carry out FEEDBACK CONTROL.
MCU Detection & Controling circuit module 9: comprise microcontroller U2 and the program of its inside containing, for example lower control algolithm: program starts, configuration I/O mouth, closes principal voltage by output switch apparatus module (4) and exports, initialization analog to digital converter, timer.Have analog-to-digital conversion functional pin when output switch apparatus module (4) closed condition by one of microcontroller U1 and detect variable frequency charger output end voltage value, what namely detect is the voltage of accessed battery.When detecting magnitude of voltage and being less than a certain threshold voltage, think that variable frequency charger does not access battery, otherwise, think that variable frequency charger accesses battery.By another of microcontroller U2, there is charging status signal and the LED status that analog-to-digital conversion functional pin detects charger when output switch apparatus module (4) opening.When detected state value is under a certain threshold values, think that variable frequency charger charges the battery, otherwise, think that battery has been full of or has not accessed battery by variable frequency charger.Microcontroller U2 according to the different output end voltage value detected and charged state, judge variable frequency charger now should enter preliminary filling, gush fill, flat to fill, slowly to fill, a certain state in floating charge and Light Condition.Timer produces at regular intervals and once interrupts, and refreshes the state of single-conversion charger.Different states has its output voltage different separately, output current, charging interval and interval dead time.Therefore, along with the rising of cell voltage, achieve the object of frequency conversion electric current square-wave intermittent dwell type intelligent charge.
The beneficial effect of patent of the present invention:
1, intelligence, reliably, there will not be misoperation;
2, exert oneself greatly.Carry out large current charge at battery low condition, more electricity can be filled with before battery gassing, therefore after each charging, many electric discharge 10-15 minute when can be full of than regular charger.
3, charging is fast.Adopt frequency conversion square wave big current batch (-type) intelligent charge, the ion that participation is reacted has enough time generate or be diffused into electrode surface, increases Limited diffusion current density, reduces concentration polarization, therefore shorten the charging interval widely.
4, the life-span is long.By microprocessor controls, charge with upper frequency pulse square wave when each charging starts, eliminate the plumbous crystallization of partial vulcanization, gush with lower frequency big current subsequently and fill, when battery is charged to gassing voltage, then use high frequency trickle charge instead to constant voltage of charging, and use the floating charge of gassing voltage trickle when charging current is down to and is faced and be full of small area analysis instead, turn off after being full of certain hour and export, stop charging.This series technique measure thoroughly avoid polarization crystallization, water loss, overheated fill drum etc. phenomenon occur, therefore, the variable frequency charger energy extending battery life 50% of invention.
5, multiple functional.Have start, resound prompting, automatic detecting adjusts automatically, and open circuit voltage exports, and short circuit, reversal connection, overvoltage, overcurrent, the functions such as full guard such as overheated, extensibility is strong.
Accompanying drawing explanation
Accompanying drawing 1 is the block diagram of the single-chip microcomputer control technology of charger based on SG3525;
Accompanying drawing 2 is the practical circuit composition diagram based on the single-chip microcomputer control technology most preferred embodiment of the charger of SG3525.
Embodiment
Below in conjunction with accompanying drawing, describe the most preferred embodiment of invention in detail:
The charger based on SG3525 integrated chip single-chip microcomputer control technology of invention, can according to plumbic acid or lithium battery charge state, dynamic conditioning charging current, charging voltage, and set the current square wave of different frequency, the pause of different time is given intermittently in battery charging process, it comprises AC rectification circuit module 1, topological structure circuit module 2, main output circuit module 3, output switch apparatus module 4, battery pack 5, SG3525 chip module 6, drive circuit module 7, constant pressure and flow circuit module 8, MCU Detection & Controling circuit module 9.
Charger connects power supply electrifying, principal voltage output output voltage is to output switch apparatus module 4 one end, and for charger internal is that MCU Detection & Controling circuit module 9 is powered, single-chip microcomputer U1 obtains the electric internal processes that brings into operation: configuring the two pins be connected with resistance R4 with resistance R3 is analog-to-digital conversion pattern, configuration and resistance R8, resistance R9, resistance R10, four pins that resistance R11 is connected with output switch apparatus module 4 are common I/O pattern, microcontroller U1 is to output switch apparatus module 4 output low level, output switch apparatus module 4 is closed, make variable frequency charger output (OUT) no-voltage.Initialization also starts analog to digital converter and timer, and timing is the time 9, and opening timing is interrupted.Initialization charged state is Light Condition.Mark is filled/stops in set.Microcontroller U1 exports the square wave of certain frequency certain time length twice circulation to resistance R13.
Enter main program: judge that voltage detecting mark is true and false, if voltage detecting is masked as very, start the magnitude of voltage of analog to digital converter sampling resistor R3 and resistance R4 junction, resistance R4 and output switch apparatus module 4 junction (i.e. variable frequency charger output) magnitude of voltage is calculated by electric resistance partial pressure ratio, resetting voltage detects mark, judges that indicator light detects mark true and false; If voltage detecting is masked as vacation, directly judge that indicator light detects mark true and false.If indicator light detects mark vacation, it is true and false that direct judgement state switches permission mark; Be masked as very if indicator light detects, start the magnitude of voltage of analog to digital converter sampling resistor R3 and resistance R5 junction, charged state indicating circuit junction (i.e. variable frequency charger LED status) magnitude of voltage in resistance R3 and charger is calculated by electric resistance partial pressure ratio, homing light detects mark, judges that state switches and allows mark true and false.Allow mark false if state switches, directly return main program, perform and circulate next time; If true, judge whether to charge, if charge, judge whether variable frequency charger output end voltage is greater than threshold voltage 3, if be greater than threshold values 3, then make variable frequency charger enter and slowly fill the charging stage, return main program, execution circulates next time; If be not more than threshold values 3, judge output end voltage whether between threshold values 3 and threshold values 2, if between threshold values 3 and threshold values 2, then make variable frequency charger enter and flatly fill the charging stage, return main program, perform and circulate next time; If not between threshold values 3 and threshold values 2, judge output end voltage whether between threshold values 2 and threshold values 1, if between threshold values 2 and threshold values 1, then make variable frequency charger enter to gush and fill the charging stage, return main program, perform and circulate next time; If not between threshold values 2 and threshold values 1, then make variable frequency charger enter the preliminary filling charging stage, return main program, perform and circulate next time; If not in charging, judge whether output end voltage is greater than threshold values 4, if be greater than threshold values 4, then make variable frequency charger enter the floating charge stage, return main program, perform and circulate next time; If be not more than threshold values 4, judge output end voltage whether between threshold values 4 and threshold values 5, if between threshold values 4 and threshold values 5, then make variable frequency charger enter the preliminary filling charging stage, return main program, perform and circulate next time; If not between threshold values 4 and threshold values 5, then make variable frequency charger enter the unloaded stage, return main program, perform and circulate next time.
Timing 9 arrives, Interruption flag set, suspends and performs main program, enter Interruption service routine: judge whether state arrives switching time.If state arrives switching time, negate state switches and allows mark.Judge the stage condition of variable frequency charger.
If variable frequency charger is in preliminary filling charged state, judge to fill/stop mark true and false, be masked as true if fill/stop, export high level to resistance R10, make triode Q3 conducting, adjustable resistance VR1 works, reduce the resistance in pulse width modulating chip SG3525 in SG3525 chip module (6) with voltage-regulation functional pin 2 pin, control the main output circuit module (3) of charger and export charging voltage, resetting voltage detects mark, export high level to output switch apparatus module (4), unlatching variable frequency charger exports, variable frequency charger is charged to accessed battery, judge whether the time 1 arrives, if the time 1 is less than, direct interruption returns, continue to perform main program, if the time 1 arrives, reset and fill/stop mark, interrupt returning, continue to perform main program, be masked as vacation if fill/stop, output low level, to output switch apparatus module (4), is closed variable frequency charger and is exported, suspend variable frequency charger to charge to accessed battery, set voltage detects mark, judges whether the time 2 arrives, if the time 2 is less than, directly interrupts returning, continue to perform main program, if the time 2 arrives, mark is filled/stops in set, interrupts returning, and continues to perform main program.
If variable frequency charger is in gush fill charged state, judge to fill/stop mark true and false, be masked as true if fill/stop, export high level to resistance R10, make triode Q3 conducting, adjustable resistance VR3 works, reduce the resistance in pulse width modulating chip in charger (1) with voltage-regulation functional pin, control charger (1) and export charging voltage, resetting voltage detects mark, export high level to switching device (2), unlatching variable frequency charger exports, variable frequency charger is charged to accessed battery, set indicator light detects mark, judge whether the time 3 arrives, if the time 3 is less than, direct interruption returns, continue to perform main program, if the time 1 arrives, reset and fill/stop mark, interrupt returning, continue to perform main program, vacation is masked as if fill/stop, homing light detects mark, output low level is to switching device (2), closedown variable frequency charger exports, and suspend variable frequency charger and charge to accessed battery, set voltage detects mark, judge whether the time 2 arrives, if the time 2 is less than, directly interrupts returning, continue to perform main program, if the time 2 arrives, mark is filled/stops in set, interrupts returning, and continues to perform main program.
If variable frequency charger is in put down fill charged state, judge to fill/stop mark true and false, be masked as true if fill/stop, export high level to resistance R10, make triode Q3 conducting, adjustable resistance VR3 works, reduce the resistance in pulse width modulating chip SG3525 in SG3525 chip module (6) with voltage-regulation functional pin 2 pin, control charger (1) and export charging voltage, resetting voltage detects mark, export high level to output switch apparatus module (4), unlatching variable frequency charger exports, variable frequency charger is charged to accessed battery, judge whether the time 4 arrives, if the time 4 is less than, direct interruption returns, continue to perform main program, if the time 1 arrives, reset and fill/stop mark, interrupt returning, continue to perform main program, vacation is masked as if fill/stop, homing light detects mark, output low level is to output switch apparatus module (2), closedown variable frequency charger exports, and suspend variable frequency charger and charge to accessed battery, set voltage detects mark, judge whether the time 2 arrives, if the time 2 is less than, directly interrupts returning, continue to perform main program, if the time 2 arrives, mark is filled/stops in set, interrupts returning, and continues to perform main program.
If variable frequency charger is in delay fill charged state, judge to fill/stop mark true and false, be masked as true if fill/stop, export high level to resistance R10, make triode Q3 conducting, adjustable resistance VR3 works, reduce the resistance in pulse width modulating chip SG3525 in SG3525 chip module (6) with voltage-regulation functional pin 2 pin, control main output circuit module (2) output voltage, resetting voltage detects mark, export high level to output switch apparatus module (4), unlatching variable frequency charger exports, variable frequency charger is charged to accessed battery, judge whether the time 5 arrives, if the time 5 is less than, direct interruption returns, continue to perform main program, if the time 1 arrives, reset and fill/stop mark, interrupt returning, continue to perform main program, vacation is masked as if fill/stop, homing light detects mark, output low level is to output switch apparatus module (4), closedown variable frequency charger exports, and suspend variable frequency charger and charge to accessed battery, set voltage detects mark, judge whether the time 2 arrives, if the time 2 is less than, directly interrupts returning, continue to perform main program, if the time 2 arrives, mark is filled/stops in set, interrupts returning, and continues to perform main program.
If variable frequency charger is in floating charge state, judge to fill/stop mark true and false, be masked as true if fill/stop, output low level is to resistance R10, triode Q3 is ended, adjustable resistance VR3 does not work, there is the resistance of voltage-regulation functional pin 2 pin without impact in pulse width modulating chip SG3525 in SG3525 chip module (6), control main output circuit module (3) and export float charge voltage (if access lithium battery, then now still export high level to resistance R10, main output circuit module (3) is made still to export charging voltage, namely lithium battery is without float charge voltage), resetting voltage detects mark, if the time 7 is less than, export high level to output switch apparatus module (4), unlatching variable frequency charger exports, variable frequency charger is charged to accessed battery, if the time 7 arrives, output low level, to output switch apparatus module (4), is closed variable frequency charger and is exported, and stops variable frequency charger charging to accessed battery, judges whether the time 1 arrives, if the time 1 is less than, directly interrupts returning, continues to perform main program, if the time 1 arrives, reset and fill/stop mark, interrupt returning, continue to perform main program, be masked as vacation if fill/stop, output low level, to switching device (2), is closed variable frequency charger and is exported, suspend variable frequency charger to charge to accessed battery, set voltage detects mark, judges whether the time 6 arrives, if the time 6 is less than, directly interrupts returning, continue to perform main program, if the time 6 arrives, mark is filled/stops in set, interrupts returning, and continues to perform main program.
If variable frequency charger is in Light Condition, judge to fill/stop mark true and false, be masked as true if fill/stop, output low level is to resistance R10, triode Q3 is ended, adjustable resistance VR3 does not work, there is the resistance of voltage-regulation functional pin 2 pin without impact in pulse width modulating chip SG3525 in SG3525 chip module (6), control main output circuit module (3) and export float charge voltage (if access lithium battery, then now still export high level to resistance R10, main output circuit module (3) is made still to export charging voltage, namely lithium battery is without float charge voltage), resetting voltage detects mark, unlatching variable frequency charger exports, variable frequency charger is charged to accessed battery, set indicator light detects mark, judge whether the time 1 arrives, if the time 1 is less than, direct interruption returns, continue to perform main program, if the time 1 arrives, reset and fill/stop mark, interrupt returning, continue to perform main program, be masked as vacation if fill/stop, output low level, to output switch apparatus module (4), is closed variable frequency charger and is exported, suspend variable frequency charger to charge to accessed battery, set voltage detects mark, judges whether the time 2 arrives, if the time 2 is less than, directly interrupts returning, continue to perform main program, if the time 2 arrives, mark is filled/stops in set, interrupts returning, and continues to perform main program.
In addition, the conducting of microcontroller U1 also exportable signal controlling Q1, Q2, Q4, thus the resistance changing 2 pin in pulse width modulating chip SG3525 in SG3525 chip module (6), thus charging current and charging voltage is changed under different conditions.The current control circuit be connected with microcontroller in addition can add as Fig. 2 (VR3, Q3 and R10 form) as required as Fig. 2 (VR1, Q1 and R8 form) and voltage control circuit, realizes Multi-section constant current constant voltage charge.
Above-described invention execution mode, does not form the restriction to invention protection range.The amendment done within any spirit in invention and principle, equivalent to replace and improvement etc., within the claims that all should be included in invention.
Claims (5)
1. based on the charger of SG3525 integrated chip single-chip microcomputer control technology, it is characterized in that: comprise AC rectification circuit module (1), topological structure circuit module (2), main output circuit module (3), output switch apparatus module (4), battery pack (5), SG3525 integrated chip module (6), drive circuit module (7), constant pressure and flow circuit module (8), MCU Detection & Controling circuit module (9);
Described AC rectification circuit module (1): for civil power AC is converted to direct current DC, so that Switching Power Supply carries out power transfer;
Described topological structure circuit module (2): the topographical form being the conversion of a kind of common switch power, produces Rectified alternating current by power switch pipe copped wave, then carries out coupling output by the primary and secondary coil of transformer;
Described main output circuit module (3): comprise the circuit such as transformer, output rectification filter, power switch pipe in topological structure circuit module (2) controls the Rectified alternating current after copped wave through the first coil coupling of transformer T1 through pwm signal, then exports after current rectifying and wave filtering circuit;
Described output switch apparatus module (4): mainly comprise electric-controlled switch element, for turning on and off main output;
Described SG3525 integrated chip module (6): with SG3535 integrated chip for core, in addition necessary peripheral circuit, forms SG3525 integrated chip module (6), and this module provides required pwm signal for whole charger;
Described drive circuit module (7): be connected to 14 pin of SG3525 chip, 11 pin, can carry out amplification process, carry out copped wave for driving power switching tube by the pwm signal that SG3525 chip exports;
Described constant pressure and flow circuit module (8): for detecting the voltage and current signal that charger exports, then feed back to 2 pin of SG3525 chip, 8 pin carry out FEEDBACK CONTROL;
MCU Detection & Controling circuit module (9): Intelligent Measurement and control are carried out to charger.
2. the charger of integrated chip single-chip microcomputer control technology as claimed in claim 1, it is characterized in that: described output switch apparatus module (4), one end is connected with the main output of charger, the other end is as the voltage output end of native system, a common I/O pin in three-terminal link to MCU Detection & Controling circuit module (9), it can hard to bear MCU Detection & Controling circuit module (9) control, and the mains voltage of unlatching or charge closing device exports, and realizes the charging to battery and pause.
3. the charger of integrated chip single-chip microcomputer control technology as claimed in claim 2, it is characterized in that: described constant pressure and flow circuit module (8) is that a kind of detection outputs signal, and feed back to the device of SG3525 integrated chip module (3), thus reach the object of stable constant pressure and flow.
4. the charger of integrated chip single-chip microcomputer control technology as claimed in claim 3, is characterized in that: described drive circuit module (7) is a kind of circuit pwm signal in SG3525 chip module (3) being passed to the device for power switching in topological structure circuit module (2).
5. the charger of integrated chip single-chip microcomputer control technology as claimed in claim 4, it is characterized in that: the microcontroller of described MCU Detection & Controling circuit module (9) inside containing control algolithm program, variable frequency charger output end voltage value is detected when switching device closed condition, charging status signal and LED status is detected when switching device opening, according to the different output end voltage value detected and LED status, variable frequency charger enters preliminary filling, gush fill, flatly to fill, slowly to fill, one in floating charge and Light Condition; Timer produces at regular intervals and once interrupts, and refreshes the charged state of single-conversion charger; Different charged states has its output voltage different separately, output current, charging interval and interval dead time.
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| CN105472809A (en) * | 2015-12-11 | 2016-04-06 | 江苏固立得精密光电有限公司 | High-constant-current ultraviolet control circuit |
| CN105553023A (en) * | 2016-01-21 | 2016-05-04 | 长安大学 | Multi-loop composite switch type battery charging converter circuit |
| CN107689664A (en) * | 2017-09-29 | 2018-02-13 | 珂伯特机器人（天津）有限公司 | A kind of intelligent robot charging pile |
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| CN105553023B (en) * | 2016-01-21 | 2017-12-19 | 长安大学 | A kind of more loop composite switch formula battery charging converter circuits |
| CN107689664A (en) * | 2017-09-29 | 2018-02-13 | 珂伯特机器人（天津）有限公司 | A kind of intelligent robot charging pile |
| CN108306400A (en) * | 2018-03-22 | 2018-07-20 | 广州云阳电子科技有限公司 | A kind of detectable Cross prevention battery pack connects and starts the intelligent charger and its implementation of charging automatically |
| US11539229B2 (en) * | 2018-05-31 | 2022-12-27 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Multi-stage constant current charging method and charging apparatus |
| CN109398146A (en) * | 2018-09-05 | 2019-03-01 | 广东工业大学 | A kind of charging pile DC charging and monitoring system |
| CN110289654A (en) * | 2019-06-25 | 2019-09-27 | 深圳市海浦蒙特科技有限公司 | A kind of charger and its charging circuit, charging control circuit |
| CN110289654B (en) * | 2019-06-25 | 2021-06-04 | 深圳市海浦蒙特科技有限公司 | Charger and charging circuit and charging control circuit thereof |
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