A kind of novel intelligent chargerTechnical field
The invention belongs to charger technologies field, be specifically related to a kind of novel intelligent charger.
Background technology
Rechargeable battery has compared with the high ratio of performance to price, the feature such as discharging current is large, the life-span is long, is widely used in various communication equipment, instrument and meter, electrical measuring device.But dissimilar battery such as nickel-cadmium cell (Nicd), Ni-MH battery (NiMH) and lithium ion battery have different charge characteristics and process.Different batteries should adopt different charging control technologys.Conventional control technology has: negative increment of voltage control, time controling, temperature control, ceiling voltage control technology etc.Wherein negative increment of voltage controls to be one of current more advanced control method of generally acknowledging.During charging, just can determine that when measuring cell voltage negative increment this battery is own through being full of, thus change charging into trickle charge.In the time controling predetermined charging interval, after reaching when charging, make charger stop charging or transfer trickle charge to, this method is safer.Temperature control method is when battery reaches full state, and battery temperature rises very fast, measures the change of battery temperature or temperature, thus determines whether to stop charging to battery.It is then judge charged state according to the maximum permissible voltage of rechargeable battery that ceiling voltage controls, and this method flexibility is better.
Current mining permanent-magnet manipulating mechanism feeding switch intelligent controller adopts lead acid accumulator as stand-by power supply.Traditional lead acid accumulator charging method has constant current voltage limiting to charge and modified constant-voltage charge, but charging effect is not very desirable, and these method charging intervals are long on the one hand, and temperature rise is too fast.On the other hand, in charging process, existence overcharges and charge less phenomenon.Expert's research shows: lead acid battery charge process is maximum to its aging effects, and overcharge, undercharge and temperature rise are all the main causes causing battery failures.
Summary of the invention
Technical problem to be solved by this invention is, for above-mentioned deficiency of the prior art, to provide a kind of novel intelligent charger.This system is according to the charge characteristic of storage battery, adopt fuzzy PID control algolithm, the intelligent charger that to devise with atmega16 single-chip microcomputer be core, it can the analog quantity such as electric current, voltage, temperature in Real-time Collection battery charging process, charging is carried out all the time in the best condition, achieves efficient, quick, harmless charging process.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of novel intelligent charger, its special character is, comprise the accessory power supply that single-chip microcomputer is connected with described single-chip microcomputer, the input of described single-chip microcomputer and current detection module, voltage detection module is connected with temperature detecting module, the output of single-chip microcomputer and IGBT drive module, audible alarm module is connected with display, the input of described IGBT drive module is connected with driving power, the output of described IGBT drive module is connected with the BUCK module for buck chopper, main power source is connected with storage battery by BUCK module, the output of described storage battery and current detection module, voltage detection module is connected with temperature detecting module.
Above-mentioned single-chip microcomputer is the atmega16 single-chip microcomputer that ATMEL company produces.
Above-mentioned IGBT drive module adopts optocoupler TLP250 as core driving chip.
Aforementioned display device is 12864LCD.
Above-mentioned BUCK module is the BUCK converter for buck chopper.
Said temperature detection module is DS18B20 temperature sensor.
Above-mentioned single-chip microcomputer produces PWM pulse by fuzzy pid algorithm and controls IGBT drive module switch.
The present invention compared with prior art has the following advantages:
1, intelligent charge battery of the present invention have employed fuzzy PID control algolithm, improves the charging rate of charger, decreases battery loss, achieves the intelligentized control method to lead acid battery charge process.
2, intelligent charge battery of the present invention solves the problem such as overcharge, undercharge and heating existed in lead acid battery charge process, is conducive to improving battery.
In sum, intelligent charge battery design of the present invention rationally, superior performance, battery loss are little, result of use good.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is overall structure block diagram of the present invention.
Description of reference numerals: 1-single-chip microcomputer; 2-IGBT driver module; 3-driving power; 4-audible alarm module; 5-display; 6-accessory power supply; 7-main power source; 8-BUCK module; 9-storage battery; 10-current detection module; 11-voltage detection module; 12-temperature detecting module.
Embodiment
As shown in Figure 1, the present invention includes the accessory power supply 6 that single-chip microcomputer 1 is connected with described single-chip microcomputer 1, the input of described single-chip microcomputer 1 and current detection module 10, voltage detection module 11 is connected with temperature detecting module 12, the output of single-chip microcomputer 1 and IGBT drive module 2, audible alarm module 4 is connected with display 5, the input of described IGBT drive module 2 is connected with driving power 3, the output of described IGBT drive module 2 is connected with the BUCK module 8 for buck chopper, main power source 7 is connected with storage battery 9 by BUCK module 8, the output of described storage battery 9 and current detection module 10, voltage detection module 11 is connected with temperature detecting module 12.
In the present embodiment, the atmega16 single-chip microcomputer that described single-chip microcomputer 1 is produced for ATMEL company.
In the present embodiment, described IGBT drive module 2 adopts optocoupler TLP250 as core driving chip.
In the present embodiment, described display 5 is 12864LCD.
In the present embodiment, described BUCK module 8 is the BUCK converter for buck chopper.
In the present embodiment, described temperature detecting module 12 is DS18B20 temperature sensor.
In the present embodiment, described single-chip microcomputer 1 produces PWM pulse by fuzzy pid algorithm and controls IGBT drive module 2 switch.
In charging process, single-chip microcomputer 1 is by analog quantitys such as electric current, voltage and the temperature in current detection module 10, voltage detection module 11 and temperature detecting module 12 Real-time Collection storage battery 9 charging process, by the A/D transducer of single-chip microcomputer 1 inside, above-mentioned analog quantity is converted into digital quantity, and judges whether storage battery 9 occurs the faults such as overvoltage, overcurrent and excess temperature.If break down, single-chip microcomputer turns off IGBT drive module 2 immediately, and sends sound and light alarm by audible alarm module 4.If detect normal, then adopt fuzzy PID control algolithm to produce the PWM pulse of corresponding duty ratio to control IGBT driver module 2 switch, by BUCK circuit, storage battery 9 is charged.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure change, all still belong in the protection range of technical solution of the present invention.