CN205724940U - A kind of charging and discharging lithium battery device based on DSP - Google Patents
A kind of charging and discharging lithium battery device based on DSP Download PDFInfo
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- CN205724940U CN205724940U CN201620045505.4U CN201620045505U CN205724940U CN 205724940 U CN205724940 U CN 205724940U CN 201620045505 U CN201620045505 U CN 201620045505U CN 205724940 U CN205724940 U CN 205724940U
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- lithium battery
- charging
- circuit
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Abstract
The utility model discloses a kind of charging and discharging lithium battery device based on DSP, including control module, drive the compositions such as module, two-way DC DC translation circuit module, signal detection module, power module, load blocks and display module.Power module is made up of D.C. regulated power supply and auxiliary power module.The two-way DC DC translation circuit electric current of signal acquisition module one end connection and voltage acquisition point, one end are connected to the input of control module DSP.DSP control module output control signal is to drive circuit, thus drives the operation of the switching tube of two-way DC DC conversion main circuit, it is achieved the discharge and recharge of lithium battery.Accessory power supply provides power supply for display module with DSP control module.The utility model has the advantages that control is simple, intelligent, efficiency is high, highly reliable.
Description
Technical field
This utility model relates to a kind of charging and discharging lithium battery device, it is adaptable to field of batteries.
Background technology
Battery is generally divided into two classes: one-shot battery or galvanic element；Secondary cell or charge-discharge battery or accumulator.The former base
Can only discharge once on Ben, after electric discharge terminates, it is impossible to re-use.The latter is then, after electric discharge terminates, can be charged, the most again
Can discharge, be reused several times.
Lithium battery has that self discharge is little, voltage is high, specific energy is high, light weight, pollution-free and length in service life etc. are special
Unique advantage.Lithium battery can be charged the most at any time, without reducing battery performance, has effect without memory
Advantage；Lithium battery does not exist harmful substance, environmentally safe, is genuine " green battery ".
The charge and discharge system of the lithium ion battery used at present mainly has two kinds: constant-current charge and constant-voltage charge；Certain two
Person can also be intersected and carried out.
The charge and discharge device control parameter of currently traditional is many, operation is complicated and inefficient.Can not meet now
Application requirement.
Summary of the invention
The purpose of this utility model is the defect of the existence for prior art, proposes a kind of SCM Based lithium battery
Charge and discharge device, this device controls simply, control parameter is few, charged electrical efficiency high, energy waste is few.
This utility model be the technical scheme is that SCM Based charging and discharging lithium battery device, mainly includes list
Sheet machine control system, driving module.Two-way DC converts main circuit module, display module, power module, signal detection module, lithium
Set of cells and load blocks etc..
Described DSP control system is one of core of charging and discharging lithium battery device based on DPS, its control system
For the DSP2812 minimum system of TI company, the AD that control system carries out voltage signal by DSP2812 gathers, and carries out PID's
Closed loop regulates.Exporting a road pwm signal is drive circuit, is regulated by button and carries out the regulation of current marching technique, mode of operation
Conversion.Current constant mode carries out the charging of set of cells, switches to discharge mode during constant voltage mode, realizes energy according to the selection of pattern
The two-way flow of amount.
Described two-way DC conversion main circuit module be charging and discharging lithium battery device based on DSP core divide it
One.Two-way DC/DC conversion main circuit uses non-isolation type BUCK/BOOST topological structure, controls two according to different mode of operations
The leading of individual metal-oxide-semiconductor, logical, buck can be realized, complete blood pressure lowering and the circuit of boosting part.Diode in Boost circuit
For Schottky diode, this diode has the advantage that forward voltage drop is the least, recovery time is shorter, but reverse pressure relatively low, many
For low pressure occasion.Due in device two metal-oxide-semiconductors duty be contrary, so DSP only need to export one road PWM letter
Number i.e. operation of controllable device.For reducing switching loss, operating frequency should be reduced as far as possible.Consider and will switch after test
Frequency setting is 30kHz.
Described signal detection module be charging and discharging lithium battery device based on DSP one of core.Described
Signal detection module is made up of current detecting chip 1NA282, constantan wire sampling resistor and resistor voltage divider circuit.Signal detection mould
Block is obtained current signal by current detecting chip I NA282 by amplifying constantan wire sampling resistor, passes through resistor voltage divider circuit
Obtain voltage signal.The electric current, the voltage signal that collect feed back to DSP control module for controlling charging and discharging lithium battery.
Described driving module is one of core of charging and discharging lithium battery device based on DSP, drive circuit bag
Include driving chip IR2104S and electric capacity, inductance and power MOSFET pipe.Each IR2104S type power-type chip controls two
The break-make of power MOSFET pipe.The input of driving chip is connected with the PWM outfan of DSP control module.Adjusted by pwm signal
The break-make of joint control MOSFET pipe realizes the closed loop control of device.When DSP detects that battery voltage value is more than setting value, by for
The Enable Pin of IR2104S provides cut-off signals, thus completes charging process.
Described power module is divided into D.C. regulated power supply and auxiliary power module composition.D.C. regulated power supply uses English special
The IPD-3305SLU of Roc company, D.C. regulated power supply provides 30V voltage for two-way DC/DC conversion main circuit and accessory power supply
Supply.Accessory power supply is constituted height by switching mode integrated voltage-stabilized chip LM2596 and peripheral components resistance, electric capacity, the diode etc. of TI
Effect mu balanced circuit offer+5V ,+12V output.Dsp controller, driving module that accessory power supply is control system provide 5V and 12V
Voltage supply.
Described display module is to be made up of the LCD12864 Liquid Crystal Module of low-power consumption, and display program is write by C language
Complete, be used for showing in real time the size of voltage, current value.
Described load blocks can be the galvanic equipment that arbitrarily needs.
The utility model has the advantages that control is simple, parameter is little, precision good in control.Achieve and lithium battery is composed in series
Set of cells charges and discharges the one key switching of two kinds of mode of operations.Circuit compact overall structure and friendly interface, operation letter
Single, the two-way flow of energy is realized according to the selection of two kinds of mode of operations, this bidirectional DC-DC converter control accuracy is good, effect
Rate is high, and has good stability.
Accompanying drawing explanation
Fig. 1 overall structure of the present utility model figure；
Fig. 2 two-way DC/DC of the present utility model converts main circuit diagram；
Fig. 3 this utility model signal detection module circuit diagram；
Fig. 4 this utility model drives module circuit diagram；
Fig. 5 this utility model auxiliary power module 5V design drawing；
Fig. 6 this utility model auxiliary power module 12V design drawing
Detailed description of the invention
This utility model provides the charge and discharge device of a kind of lithium battery based on DSP.Below in conjunction with example and accompanying drawing to this
The SCM Based charging and discharging lithium battery device of utility model is described in detail.
As it is shown in figure 1, this utility model charging and discharging lithium battery based on DSP device, mainly include DSP control system, drive
Dynamic model block, two-way DC/DC conversion main circuit module, signal detection module, power module, display module, load blocks and lithium electricity
Pond group etc..Power module includes D.C. regulated power supply module and auxiliary power module.It is characterized in that described bidirectional DC-DC converter
Module connects lithium battery group, load blocks, DSP control module, drive circuit module respectively.DSP control module connects display mould
Block, driving module, signal detection module and auxiliary power module.DSP control module is connected by ADC with signal detection module.
As in figure 2 it is shown, described two-way DC/DC conversion main circuit uses non-isolation type BUCK/BOOST topological structure, root
Control the leading of two metal-oxide-semiconductors, logical according to different mode of operation, buck can be realized, complete blood pressure lowering and the circuit of boosting part.
Two-way changing main circuit module one end connects D.C. regulated power supply.One end is connected to lithium battery group.Also having at main circuit module
The electric current of set of cells, voltage sample point, provides feedback signal for monitoring battery set charge/discharge state in real time.Step-up/step-down circuit by
Metal-oxide-semiconductor IRFZ44 (Q1 and Q2), SR5100 diode, electric capacity Ca1, Ca2, Ca3, inductance L1 device form, and electric current flows to the left
Time be reduction voltage circuit, be booster circuit when electric current flows to the right.In Boost circuit, diode is Schottky diode, this
Diode has the advantage that forward voltage drop is the least, recovery time is shorter, but reverse pressure relatively low, is used for low pressure occasion.Due to
In device two metal-oxide-semiconductors duty be complementary, so DSP only need to export an i.e. controllable device of road pwm signal
Run.For reducing switching loss, operating frequency should be reduced as far as possible.Consider, after test, switching frequency is set as 30kHz.
As it is shown on figure 3, signal detection module is by constantan wire resistance Rs, current detecting chip I NA282 and bleeder circuit group
Become.Signal detection module obtains electric current letter by current detecting chip I NA282 by amplifying the voltage signal on sampling resistor
Number, obtain voltage signal by resistor voltage divider circuit.The electric current, the voltage signal that collect feed back to DSP control module for reality
The double-closed-loop control of existing device.
As shown in Figure 4, described driving module is simple peripheral by MOS driving chip IR2104S and polar capacitor, inductance etc.
Device forms, the break-make of each IR2104S type two power MOSFET pipes of power-type chip controls.The input IN of driving chip
It is connected with DSP control system module outfan.The closed loop control of device is realized by the break-make of pwm signal regulation control MOSFET pipe
System.Drive module simultaneously for whole device provide overshoot protection: when DSP detects that battery voltage value is more than setting value, by for
The Enable Pin of IR2104S provides cut-off signals, disconnects PWM output, thus turns off charge mode, provides safe guarantor for device
Barrier.
As it is shown in figure 5, described auxiliary power module 5V is the switching mode integrated voltage-stabilized chip LM2596 by TI and periphery
Device resistance, electric capacity, diode etc. constitute efficient mu balanced circuit.LM2596 supports that output is adjustable, and the 1 of voltage stabilizing chip LM2596 is drawn
Foot is input, and 2 pins are outfan, outfan output 5V voltage.
As shown in Figure 6, described auxiliary power module 12V is the switching mode integrated voltage-stabilized chip LM2596 by TI and periphery
Device resistance, electric capacity, diode etc. constitute efficient mu balanced circuit.LM2596 supports that output is adjustable, and the 1 of voltage stabilizing chip LM2596 is drawn
Foot is input, and 2 pins are outfan, outfan output 12V voltage.
Schematically being described this utility model and embodiment thereof above, this description does not has limitation, accompanying drawing
Shown in be also one of embodiment of the present utility model.If so those of ordinary skill in the art is enlightened by it,
In the case of without departing from the invention objective, the same item taken other form or each component layouts side of other form
Formula, designs the technical scheme similar to this technical scheme and embodiment without creative, all should belong to of the present utility model
Protection domain.
Claims (7)
1. a charging and discharging lithium battery device based on DSP, including DSP control module, drives module, load blocks, display mould
Block, signal detection module, bidirectional DC-DC converter circuit module and power module；Power module includes D.C. regulated power supply module
With auxiliary power module；It is characterized in that described bidirectional DC-DC converter module connects lithium battery group, load blocks, signal respectively
Detection module, drive circuit module and D.C. regulated power supply；DSP control module connects display module, drives module, signal detection
Module and auxiliary power module.
A kind of charging and discharging lithium battery device based on DSP the most according to claim 1, it is characterised in that: described DSP control
Module core processed is made up of the DSP2812 minimum system of TI.
A kind of charging and discharging lithium battery device based on DSP the most according to claim 1, it is characterised in that: described is two-way
DC/DC conversion main circuit uses non-isolation type BUCK/BOOST topological structure, two-way DC/DC conversion main circuit to include BOOST liter
Volt circuit and BUCK reduction voltage circuit, control conducting and the shutoff of two metal-oxide-semiconductors, complete blood pressure lowering and liter according to different mode of operations
Pressure function；In described Boost circuit, diode is Schottky diode.
A kind of charging and discharging lithium battery device based on DSP the most according to claim 1, it is characterised in that: described signal
Detection module is made up of current detecting chip I NA282, constantan wire sampling resistor and resistor voltage divider circuit；Signal detection module leads to
The voltage signal that overcurrent detection chip INA282 is amplified on constantan wire sampling resistor obtains current signal；Pass through electric resistance partial pressure
Circuit obtains voltage signal.
A kind of charging and discharging lithium battery device based on DSP the most according to claim 1, it is characterised in that: described driving
Module is made up of MOS driving chip IR2104S and polar capacitor, inductance, diode component；Each IR2104S type power core
Sheet controls the break-make of two MOSFET pipes, and the input of driving chip is connected with the PWM outfan of DSP control module.
A kind of charging and discharging lithium battery device based on DSP the most according to claim 1, it is characterised in that: DC voltage-stabilizing electricity
Source provides the supply of 30V voltage for two-way DC/DC conversion main circuit and accessory power supply；Auxiliary power module by stabilivolt LM2596 with
Inductance, electric capacity, resistance and IN4007 diode composition, for DSP control module, drive module and display module offer respectively
The voltage of 5V, 12V, 5V.
A kind of charging and discharging lithium battery device based on DSP the most according to claim 1, it is characterised in that: described display
Module is made up of low-power consumption LCD12864 Liquid Crystal Module；Display module shows the size of battery set charge/discharge electric current and voltage in real time
Value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620045505.4U CN205724940U (en) | 2016-01-14 | 2016-01-14 | A kind of charging and discharging lithium battery device based on DSP |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620045505.4U CN205724940U (en) | 2016-01-14 | 2016-01-14 | A kind of charging and discharging lithium battery device based on DSP |
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| CN205724940U true CN205724940U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620045505.4U Expired - Fee Related CN205724940U (en) | 2016-01-14 | 2016-01-14 | A kind of charging and discharging lithium battery device based on DSP |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981986A (en) * | 2017-04-13 | 2017-07-25 | 佛山科学技术学院 | Charging device based on the two-way DC DC converters of non-isolation type |
| CN114464870A (en) * | 2022-02-24 | 2022-05-10 | 杭州传一科技有限公司 | Lithium battery device with fin heat radiation structure |
-
2016
- 2016-01-14 CN CN201620045505.4U patent/CN205724940U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981986A (en) * | 2017-04-13 | 2017-07-25 | 佛山科学技术学院 | Charging device based on the two-way DC DC converters of non-isolation type |
| CN114464870A (en) * | 2022-02-24 | 2022-05-10 | 杭州传一科技有限公司 | Lithium battery device with fin heat radiation structure |
| CN114464870B (en) * | 2022-02-24 | 2023-09-12 | 深圳市天德普储能科技有限公司 | Lithium battery device with fin heat radiation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20161123 Termination date: 20180114 |