CN103337887B - A kind of intelligent charger system and circuit - Google Patents
A kind of intelligent charger system and circuit Download PDFInfo
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- CN103337887B CN103337887B CN201310254123.3A CN201310254123A CN103337887B CN 103337887 B CN103337887 B CN 103337887B CN 201310254123 A CN201310254123 A CN 201310254123A CN 103337887 B CN103337887 B CN 103337887B
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Abstract
The invention discloses a kind of intelligent charger system, described intelligent charger system comprises reference voltage adjusting module, comparison module, amplification module, feedback collection module, the present invention adopts Infineon 8 single-chip microcomputer XC866 as PWM control unit, software control XC866 exports the PWM of fixed frequency 50K, the duty ratio of PWM is adjusted by software between 0 ~ 100%, the PWM that XC866 exports after filtering circuit rectifies becomes variable 0 ~ 5V direct current as reference voltage, transformer output voltage and the electric current of reference voltage control charger control method and the circuit of output voltage and electric current by the duty ratio of the PWM of control 50K, do not need to revise hardware, charger charging curve is revised by software, charging device is made to enter a brand-new self adaptation, the intelligence stage.
Description
Technical field
The invention belongs to electric car charger field, particularly relate to a kind of intelligent charger system and circuit.
Background technology
Charger is commonly referred to as one and alternating current is converted to galvanic equipment, charger is of many uses in every field, particularly be widely used in the common electrical equipment of electric motor car etc. at sphere of life, charger adopts power electronics semiconductor device, be galvanic a kind of static ac dc converter device by voltage and the changeless convert alternating current of frequency, taking storage battery as the electricity consumption occasion of working power or stand-by power supply, charger is with a wide range of applications, the selection of charging modes directly affects service efficiency and the useful life of battery, charging technique development in recent years is very fast, the development experience of charger three phases: 1. current limiting pressure-limiting formula charger: the most original is exactly limited pressure charging, then the charging of current limiting pressure-limiting formula is transitioned into, the mode that its uses is exactly shallowly fill shallow putting, the statement of its life-span is exactly the time, there is no number of times, such as 10 years, the effect of this charge mode is poor, 2. constant current/limited pressure charger: this is that the charger of this pattern of second stage of charger development occupies charger market nearly half a century, first, with constant current charge to predetermined magnitude of voltage, then, change constant voltage into and complete remaining charging, when constant current charge refers to charge in batteries, the method of multi-stage constant current is adopted to charge, and this electric current adjustment charging device reaches, its main feature is that this charging method has larger adaptability, can select arbitrarily and adjust charging current, therefore can to the charge in batteries of various different situations and state, main feature is: charging initial stage electric current is quite large, storage battery kinetic potential and electrolyte relative density rise very fast, along with the continuity of charging, charging current reduces gradually, very little electric current is only had to pass through final period in charging, charging interval is short, energy consumption is low, general charging after 4-5 hour storage battery can obtain the 90%-95% of self-capacity: if charging voltage is selected proper, within 8 hours, whole charging process can be completed, and whole charging process does not need people to look after, so be widely used in boost charge, 3. self-adapting intelligent charger: along with the appearance of large-scale integrated IC, charging device enters a brand-new self adaptation, in the intelligence stage, be namely called third generation charger: traditional battery charger mostly is analog circuit charger, there is larger drawback, its peripheral components is many, circuit is complicated, cost is high, difficult design, maintenance difficult, maintenance and expansion poor performance, reliability is not high, and charging method falls behind, charging interval is often longer, and from charging system, the charging system of Abroad in Recent Years is at product and technically all achieve considerable progress, and advanced technology is (as computer technology, control technology, artificial intelligence technology, fuzzy control technology etc.) make charge prepd from single type charger to multi-functional, safety-type, intelligent charging series of products transform, and the design of large-scale charging station will consider the networking of charger, comprise electrically can communicating in information in parallel, interoperability etc. in task.
Deep expansion is failed in the exploitation of electric motor car in the world, wherein, most important be also a most difficult problem is " charging " problem, mainly refer to charge mode and parameter, in China, greatly developing of electric motor car is extremely urgent thing, thus charger and charging technique are in very crucial position, the charger of a function admirable will solve series of theories problem, such as, prevents or reduces polarity effect as far as possible; Prevent thermal runaway, prevent or reduce dehydration effect as far as possible; Prevent the irreversible salinization formed of charging, etc., at present because traditional charger charging rate is slow, charging interval is long, charging available capacity is low, circulation receive the order short, to battery easy damaged, rapid nitriding is failed completely so far, traditional battery charger mostly is analog circuit charger, there is larger drawback, its peripheral components is many, circuit is complicated, cost is high, difficult design, maintenance difficult, maintenance and expansion poor performance, reliability are not high, and charging method falls behind, the charging interval is often longer.
Summary of the invention
The object of the invention is to utilize a kind of intelligent charger system and circuit, be intended to charger charging rate traditional before solving slow, charging interval is long, charging available capacity is low, circulation receive the order short, to battery easy damaged, rapid nitriding is failed completely so far, traditional battery charger mostly is analog circuit charger, have that circuit complexity, cost are high, difficult design, maintenance difficult, maintenance and expansion poor performance, reliability are not high, the problem that charging method falls behind, the charging interval is often longer.
The object of the present invention is to provide a kind of intelligent charger system, described intelligent charger system comprises:
Reference voltage adjusting module, for adjusting the reference voltage of charger;
Comparison module, is connected with described reference voltage adjusting module, for realizing comparing of reference voltage and output voltage;
Amplification module, is connected with described comparison module, is divided by reference voltage the definite value pressed out to amplify for realizing;
Feedback collection module, is connected with described amplification module and comparison module, the output voltage collected or current signal is fed back for realizing.
Another object of the present invention is to provide a kind of smart charger circuit, the connected mode of described smart charger circuit is:
The concrete connected mode of intelligent charger control chip is: 1 pin of chip U4 meets voltage source VCC by resistance R; The 4 pin wind-receiving fans of chip U4; Directly, 8 pins are connected with 7 pins by electric capacity C15 7 pins of chip U4, then ground connection; 11 pins of chip U4 meet voltage source VCC by resistance R; The 13 pin contact relay 2 of chip U4; The 13 pin contact relay 1 of chip U4; 15 pins of chip U4 meet TEST_V2; 16 pins of chip U4 meet TEST_V1; 17 pins of chip U4 meet TEST_C; 18 pins of chip U4 directly meet voltage source VCC, are then connected with 18 pins by electric capacity C16, then ground connection; 20 pins of chip U4 connect probe temperature 1; 21 pins of chip U4 connect probe temperature 2; 22 pins of chip U4 connect probe temperature 3; The direct ground connection of 24 pin of chip U4; 25 pin parts of chip U4 meet supply voltage VCC, and a part is connected with 24 pins by electric capacity C17, then ground connection; 27 pins of chip U4 connect diode red light; 28 pins of chip U4 connect diode green light; 29 pins of chip U4 connect diode amber light; 32 pins of chip U4 meet OUT_C; 34 pins of chip U4 connect output voltage; 38 pin parts of chip U4 connect draws electric capacity C18, and a part meets voltage source VCC by resistance R50;
The connection that the filter circuit figure of intelligent charger is concrete is: the inverting input 9 of operational amplifier LMV324 connects operational amplifier LMV324 output 8, operational amplifier LMV324 output 8 connecting resistance R21, in-phase input end 10 part of operational amplifier LMV324 is by electric capacity C23 ground connection, a part is by resistance R13, then OUT_V is met, i.e. 34 pins of chip U4; In like manner, the inverting input 13 of another operational amplifier LMV324 connects operational amplifier LMV324 output 14, operational amplifier LMV324 output 14 connecting resistance R21, in-phase input end 12 part of operational amplifier LMV324 is by electric capacity C24 ground connection, a part is by resistance R16, then OUT_C is met, i.e. 32 pins of chip U4.
Further, described intelligent charger control chip adopts Infineon 8 single-chip microcomputer XC866 as PWM control unit, by controlling the duty ratio of fixed frequency, reference voltage is adjusted after filtering after shaping, the voltage and current that reference voltage exports with feedback compares, and controls charger transformer and exports the voltage and current consistent with reference voltage.
Intelligent charger system provided by the invention and circuit, adopt Infineon 8 single-chip microcomputer XC866 as PWM control unit, circuit output reference voltage after filtering, software control XC866 exports the PWM of fixed frequency 50K, the duty ratio of PWM is adjusted by software between 0 ~ 100%, the PWM that XC866 exports after filtering circuit rectifies becomes variable 0 ~ 5V direct current as reference voltage, reference voltage controls transformer output voltage and the electric current of charger, method and the circuit of output voltage and electric current is controlled by the duty ratio of the PWM of control 50K, do not need to revise hardware, charger charging curve is revised by software, charging device is made to enter a brand-new self adaptation, the intelligence stage.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the intelligent charger system that the embodiment of the present invention provides;
Fig. 2 is the circuit diagram of the control chip of the intelligent charger that the embodiment of the present invention provides;
Fig. 3 is the filter circuit figure of the intelligent charger that the embodiment of the present invention provides.
In figure: 1, reference voltage adjusting module; 2, comparison module; 3, amplification module; 4, feedback collection module.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiments provide a kind of intelligent charger system, this intelligent charger system comprises:
Reference voltage adjusting module, for adjusting the reference voltage of charger;
Comparison module, is connected with reference voltage adjusting module, for realizing comparing of reference voltage and output voltage;
Amplification module, is connected with comparison module, is divided by reference voltage the definite value pressed out to amplify for realizing;
Feedback collection module, is connected with amplification module and comparison module, the output voltage collected or current signal is fed back for realizing.
Referring to accompanying drawing, embodiment of the present invention intelligent charger system and circuit are described in further detail.
As Fig. 1 shows the structured flowchart of the intelligent charger system that the embodiment of the present invention provides, the present invention comprises 4 functional modules:
Reference voltage adjusting module 1, its function is that the duty ratio of PWM by adjusting fixed frequency adjusts the reference voltage of charger thus the control realized output voltage electric current;
Comparison module 2, is connected with reference voltage adjusting module 1, for realizing comparing of reference voltage and output voltage;
Amplification module 3, is connected with comparison module, being divided by reference voltage the definite value pressed out to amplify, meeting the requirements of output voltage values for realizing;
Feedback collection module 4, is connected with amplification module 3, comparison module 2, the output voltage collected or current signal is fed back in comparison module 2 for realizing, and realizes comparing of reference voltage and output voltage.
The circuit connection diagram of intelligent charger control chip that theres is provided of the embodiment of the present invention as shown in Figure 2, the major function of this circuit diagram produces corresponding PWM, adopt Infineon 8 single-chip microcomputer XC866 as PWM control unit, , by controlling the duty ratio of fixed frequency, reference voltage is adjusted after filtering after shaping, the voltage and current that reference voltage exports with feedback compares, control charger transformer and export the voltage and current consistent with reference voltage, XC866 operating frequency reaches 80M, PWM frequency reaches 26.6M, its concrete connected mode is: 1 pin of chip U4 meets voltage source VCC by resistance R, the 4 pin wind-receiving fans of chip U4, directly, 8 pins are connected with 7 pins by electric capacity C15 7 pins of chip U4, then ground connection, 11 pins of chip U4 meet voltage source VCC by resistance R, the 13 pin contact relay 2 of chip U4, the 13 pin contact relay 1 of chip U4, 15 pins of chip U4 meet TEST_V2, 16 pins of chip U4 meet TEST_V1, 17 pins of chip U4 meet TEST_C, 18 pins of chip U4 directly meet voltage source VCC, are then connected with 18 pins by electric capacity C16, then ground connection, 20 pins of chip U4 connect probe temperature 1, 21 pins of chip U4 connect probe temperature 2, 22 pins of chip U4 connect probe temperature 3, the direct ground connection of 24 pin of chip U4, 25 pin parts of chip U4 meet supply voltage VCC, and a part is connected with 24 pins by electric capacity C17, then ground connection, 27 pins of chip U4 connect diode red light, 28 pins of chip U4 connect diode green light, 29 pins of chip U4 connect diode amber light, 32 pins of chip U4 meet OUT_C, 34 pins of chip U4 connect output voltage, 38 pin parts of chip U4 connect draws electric capacity C18, and a part meets voltage source VCC by resistance R50.
As Fig. 3 shows the filter circuit figure of the intelligent charger that the embodiment of the present invention provides, its concrete connection is: the inverting input 9 of operational amplifier LMV324 connects operational amplifier LMV324 output 8, operational amplifier LMV324 output 8 connecting resistance R21, in-phase input end 10 part of operational amplifier LMV324 is by electric capacity C23 ground connection, a part is by resistance R13, then OUT_V is met, i.e. 34 pins of chip U4; In like manner, the inverting input 13 of another operational amplifier LMV324 connects operational amplifier LMV324 output 14, operational amplifier LMV324 output 14 connecting resistance R21, in-phase input end 12 part of operational amplifier LMV324 is by electric capacity C24 ground connection, a part is by resistance R16, then OUT_C is met, i.e. 32 pins of chip U4.
The method that the present invention controls charger output voltage and electric current is the reference voltage being adjusted charger by the duty ratio of the PWM of adjustment fixed frequency.Reference voltage is directly proportional to the duty ratio of PWM, the reference voltage of the duty ratio correspondence 0 ~ 5V of 0 ~ 100%, and therefore output voltage is linearly adjustable; Concrete grammar is as follows: adopt Infineon 8 single-chip microcomputer XC866 as PWM control unit, XC866 operating frequency reaches 80M, PWM frequency reaches 26.6M, single-chip microcomputer exports PWM as shown in Figure 3, through the filter circuit output reference voltage of diagram 4, XC866 is zero by software control output current of charger, circuit as depicted in figs. 1 and 2.In Fig. 1, XC866 single-chip microcomputer is zero by software control PWM duty ratio, be output current of charger is zero; The course of work is: software control XC866 exports the PWM of fixed frequency 50K, the duty ratio of PWM is adjusted by software between 0 ~ 100%, the PWM that XC866 exports after filtering circuit rectifies becomes variable 0 ~ 5V direct current as reference voltage, and reference voltage controls transformer output voltage and the electric current of charger.Due to output voltage and current adjustment, therefore charger charging curve adjusts by software.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. an intelligent charger system, is characterized in that, described intelligent charger system comprises:
For adjusting the reference voltage adjusting module of the reference voltage of charger;
Be connected with described reference voltage adjusting module, for realizing the comparison module compared of reference voltage and output voltage;
Being connected with described comparison module, being divided by reference voltage the definite value pressed out to carry out the amplification module amplified for realizing;
Be connected with described amplification module and comparison module, for realizing the feedback collection module output voltage collected or current signal being carried out feeding back;
For a smart charger circuit for intelligent charger system, it is characterized in that, the connected mode of described smart charger circuit is:
The concrete connected mode of intelligent charger control chip is: 1 pin of chip U4 meets voltage source VCC by resistance R;
The 4 pin wind-receiving fans of chip U4; Directly, 8 pins are connected with 7 pins by electric capacity C15 7 pins of chip U4, then ground connection; 11 pins of chip U4 meet voltage source VCC by resistance R; The 13 pin contact relay 2 of chip U4; The 14 pin contact relay 1 of chip U4; 15 pins of chip U4 meet TEST_V2; 16 pins of chip U4 meet TEST_V1;
17 pins of chip U4 meet TEST_C; 18 pins of chip U4 directly meet voltage source VCC, are then connected with 19 pins by electric capacity C16, then ground connection; 20 pins of chip U4 connect probe temperature 1; 21 pins of chip U4 connect probe temperature 2; 22 pins of chip U4 connect probe temperature 3; The direct ground connection of 24 pin of chip U4; 25 pin parts of chip U4 meet supply voltage VCC, and a part is connected with 24 pins by electric capacity C17, then ground connection; 27 pins of chip U4 connect diode red light; 28 pins of chip U4 connect diode green light; 29 pins of chip U4 connect diode amber light; 32 pins of chip U4 meet OUT_C; 34 pins of chip U4 connect output voltage; 38 pin parts of chip U4 connect draws electric capacity C18, and a part meets voltage source VCC by resistance R50;
The connection that the filter circuit figure of intelligent charger is concrete is: the inverting input 9 of operational amplifier LMV324 connects operational amplifier LMV324 output 8, operational amplifier LMV324 output 8 connecting resistance R21, in-phase input end 10 part of operational amplifier LMV324 is by electric capacity C23 ground connection, a part is by resistance R13, then OUT_V is met, i.e. 34 pins of chip U4; In like manner, the inverting input 13 of another operational amplifier LMV324 connects operational amplifier LMV324 output 14, operational amplifier LMV324 output 14 connecting resistance R21, in-phase input end 12 part of operational amplifier LMV324 is by electric capacity C24 ground connection, a part is by resistance R16, then OUT_C is met, i.e. 32 pins of chip U4;
Described intelligent charger control chip adopts 8 single-chip microcomputer XC866 as PWM control unit, by controlling the duty ratio of fixed frequency, reference voltage is adjusted after filtering after shaping, the voltage and current that reference voltage exports with feedback compares, and controls charger transformer and exports the voltage and current consistent with reference voltage.
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| CN201310254123.3A CN103337887B (en) | 2013-06-25 | 2013-06-25 | A kind of intelligent charger system and circuit |
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| CN201310254123.3A CN103337887B (en) | 2013-06-25 | 2013-06-25 | A kind of intelligent charger system and circuit |
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| CN103337887B true CN103337887B (en) | 2016-01-13 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106787057B (en) * | 2017-01-12 | 2023-09-26 | 东莞市太业电子股份有限公司 | Mobile power supply charging control loop |
| CN108075548B (en) * | 2018-01-10 | 2022-04-22 | 上海展扬通信技术有限公司 | Charging control method, mobile terminal and computer readable storage medium |
| CN110767950B (en) * | 2019-10-31 | 2021-04-16 | Oppo广东移动通信有限公司 | Charging method, device, terminal device and computer-readable storage medium |
| CN117110836B (en) * | 2023-08-25 | 2024-11-12 | 深圳莱福德科技股份有限公司 | Overvoltage protection test device and method |
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| CN201107600Y (en) * | 2007-09-17 | 2008-08-27 | 南京天擎汽车电子有限公司 | Electronic control type electrodynamic power-assisted steering controller |
| CN201113517Y (en) * | 2007-09-19 | 2008-09-10 | 中兴通讯股份有限公司 | Charging circuit with self-regulation function |
| CN101867214A (en) * | 2010-06-24 | 2010-10-20 | 深圳市瑞必达电源有限公司 | Charging circuit and charger |
| CN102769435A (en) * | 2011-05-06 | 2012-11-07 | 北京蔚蓝仕科技有限公司 | Differential amplifying circuit capable of automatically adjusting amplification factor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4766095B2 (en) * | 2008-10-09 | 2011-09-07 | ソニー株式会社 | Charger |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201107600Y (en) * | 2007-09-17 | 2008-08-27 | 南京天擎汽车电子有限公司 | Electronic control type electrodynamic power-assisted steering controller |
| CN201113517Y (en) * | 2007-09-19 | 2008-09-10 | 中兴通讯股份有限公司 | Charging circuit with self-regulation function |
| CN101867214A (en) * | 2010-06-24 | 2010-10-20 | 深圳市瑞必达电源有限公司 | Charging circuit and charger |
| CN102769435A (en) * | 2011-05-06 | 2012-11-07 | 北京蔚蓝仕科技有限公司 | Differential amplifying circuit capable of automatically adjusting amplification factor |
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