CN205407324U - Digital lithium battery measurement device - Google Patents

Digital lithium battery measurement device Download PDF

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Publication number
CN205407324U
CN205407324U CN201620147139.3U CN201620147139U CN205407324U CN 205407324 U CN205407324 U CN 205407324U CN 201620147139 U CN201620147139 U CN 201620147139U CN 205407324 U CN205407324 U CN 205407324U
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port
keyboard
circuit module
module
charge
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CN201620147139.3U
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Chinese (zh)
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刘萍
叶晶晶
江绍伟
许策
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Xiamen University Tan Kah Kee College
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Xiamen University Tan Kah Kee College
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Abstract

The utility model discloses a digital lithium battery measurement device, detect circuit module, key entry circuit module, liquid crystal display circuit module, change over switch module and auxiliary power supply module including charge -discharge way hardware main part module, control of charge and discharge circuit module, voltage electric current, charge -discharge way hardware main part module is used for receiving control of charge and discharge circuit module's signal, control of charge and discharge circuit module is used for receiving the voltage electric current and detects the signal of circuit module output and the signal of key entry circuit module output, the voltage/current detecting circuit module is used for receiving the voltage and the electric current of charge -discharge way hardware main part module, key entry circuit module is used for the signal transmission who produces manual button to give control of charge and discharge circuit module, the change over switch module is used for receiving the signal that control of charge and discharge circuit module produced, the utility model discloses the automation that can realize the lithium cell is filled, is discharged, there is higher system efficiency, there is good human -computer interaction.

Description

Digital charging and discharging lithium battery device
Technical field
This utility model belongs to design of electronic circuits and Single-chip Controlling field, is specifically related to digital charging and discharging lithium battery device.
Background technology
The charging device of lithium battery is more on the market, but to have the device filling, putting a function concurrently few simultaneously.For lithium battery charger, it is common to viewpoint lithium battery unlike nickel, hydrogen, nickel-cadmium cell, have memory effect, it is not necessary to electric discharge, thus lithium battery charger does not mostly possess charge function, structural research yet less.But the lithium battery actual efficiency generally using four, five years as long as can decline to some extent, if repeatedly being circulated by " electric discharge one charging ", actual capacity can be improved, extend battery.Thus, it is necessary to design a can with putting, the charger of Electricity Functional.On the market, in the lithium battery charger with discharging function few in number, circuit mostly design complex, function is also comparatively single, user uses interface also unfriendly.
Utility model content
Technical problem to be solved in the utility model is to provide digital charging and discharging lithium battery device for above-mentioned the deficiencies in the prior art, and this digital charging and discharging lithium battery device improves battery actual capacity, extends battery;It is automatically obtained the charge and discharge switching of battery;System entirety is efficiently, in high precision;Friendly interactive function, brings convenience to the use of user.
For realizing above-mentioned technical purpose, the technical scheme that this utility model is taked is: digital charging and discharging lithium battery device, including charge-discharge circuit hardware body module, charge-discharge control circuit module, voltage and current detection circuit module, input through keyboard circuit module, liquid crystal display circuit module, switching switch module and auxiliary power module;Described charge-discharge circuit hardware body module, charge-discharge control circuit module, voltage and current detection circuit module, input through keyboard circuit module, liquid crystal display circuit module, switching switch module and auxiliary power module between connected mode for electrical connection;
Described charge-discharge circuit hardware body module is for receiving the signal of described charge-discharge control circuit module;Described charge-discharge control circuit module is used for receiving the signal of the signal of described voltage and current detection circuit module output and the output of input through keyboard circuit module and sending a signal to described charge-discharge circuit hardware body and LCD MODULE;Described voltage and current detection circuit module is for receiving the voltage x current of described charge-discharge circuit hardware body module and sending a signal to described charge-discharge control circuit module;Described input through keyboard circuit module is for being sent to described charge-discharge control circuit module by the signal that manual key produces;Described liquid crystal display circuit module is for showing the content that described charge-discharge control circuit module sends;Described switching switch module is for receiving the signal of described charge-discharge control circuit module generation and realizing access and the disconnection of circuit;Described auxiliary power module is for providing power supply for described charge-discharge circuit hardware body module, charge-discharge control circuit module and voltage and current detection circuit module.
As the technical scheme that this utility model improves further, described charge-discharge control circuit module adopts ArduinoNano single-chip microcomputer.
As the technical scheme that this utility model improves further, described charge-discharge circuit hardware body module includes PWM drive circuit and boost-buck main body circuit;PWM drive circuit adopts two chip I R2104S_1 and IR2104S_2, chip I R2104S_1 is for receiving the output signal P-2 of ArduinoNano one-chip machine port 24 and sending signal PWM-2, chip I R2104S_2 for receiving the output signal P-1 of ArduinoNano one-chip machine port 23 and sending signal PWM-1;Described boost-buck main body circuit is made up of S1 switching tube IRF3205, S2 switching tube IRF3205, three electric capacity C3_M, C2_M, C1_M, a 380UH inductance, three diodes D1_M, D2_M, D3_M and a relay PVG612S;null380UH inductance port 1 is connected with the positive pole of electric capacity C3_M,380UH inductance port 2 is connected with the S pole of S1 switching tube and the D pole of S2 switching tube respectively,The D pole of S1 switching tube is connected with the positive pole of electric capacity C2_M,The negative pole of electric capacity C3_M、The S pole of S2 switching tube and the negative pole of electric capacity C2_M are all connected with ground wire,S1 switching tube is in parallel with diode D1_M,The S pole of S1 switching tube is connected with the positive pole of diode D1_M,The S pole of S1 switching tube is also connected with the port 6 of the chip I R2104S_2 in PWM drive circuit,The D pole of S1 switching tube is connected with the negative pole of diode D1_M,S2 switching tube is in parallel with diode D2_M,The S pole of S2 switching tube is connected with the positive pole of diode D2_M,The D pole of S2 switching tube is connected with the negative pole of diode D2_M,Electric capacity C2_M is in parallel with electric capacity C1_M,Electric capacity C2_M positive pole is connected with electric capacity C1_M positive pole,Electric capacity C2_M negative pole is connected with electric capacity C1_M negative pole,The PU_1 end of relay PVG612S is connected with the negative pole of diode D3_M,The PU_2 end of relay PVG612S is connected with the positive pole of diode D3_M;The G pole of S1 switching tube is used for receiving the signal PWM-2 from PWM drive circuit for the G pole receiving signal PWM-1, the S2 switching tube from PWM drive circuit.
As the technical scheme that this utility model improves further, described voltage and current detection circuit module includes the first voltage detector, second voltage detector and amperometric, described first voltage detector and the second voltage detector all adopt Hall voltage sensor TBV10/25A, described amperometric adopts Hall current sensor TBC05LX, described first voltage detector port 5 is connected with diode D3_M positive pole, described first voltage detector port 4 is connected with electric capacity C3_M negative pole, described first voltage detector port 3 is connected with the port 5 of ArduinoNano single-chip microcomputer;Described second voltage detector port 5 is connected with electric capacity C1_M positive pole, and described second voltage detector port 4 is connected with electric capacity C1_M negative pole, and described second voltage detector port 3 is connected with the port 4 of ArduinoNano single-chip microcomputer;Described amperometric port 6 is connected with diode D3_M positive pole, and described amperometric port 5 is connected with 380UH inductance port 1, and described amperometric port 3 is connected with the port 6 of ArduinoNano single-chip microcomputer.
As the technical scheme that this utility model improves further, described input through keyboard circuit module includes keyboard pricking with needle and keyboard K1 to K16, wherein one end of keyboard K1 to K4 is interconnected to keyboard pricking with needle port 5, wherein one end of keyboard K5 to K8 is interconnected to keyboard pricking with needle port 6, wherein one end of keyboard K9 to K12 is interconnected to keyboard pricking with needle port 7, and wherein one end of keyboard K13 to K16 is interconnected to keyboard pricking with needle port 8;nullKeyboard K1、K5、The other end of K9 and K13 is interconnected to keyboard pricking with needle port 1,Keyboard K2、K6、The other end of K10 and K14 interconnects,Keyboard K3、K7、The other end of K11 and K15 is interconnected to keyboard pricking with needle port 3,Keyboard K4、K8、The other end of K12 and K16 is interconnected to keyboard pricking with needle port 4,Keyboard pricking with needle port 1 is connected with the port 21 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 2 is connected with the port 22 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 3 is connected with the port 25 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 4 is connected with the port 26 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 5 is connected with the port 27 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 6 is connected with the port 28 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 7 is connected with the port 29 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 8 is connected with the port 30 of ArduinoNano single-chip microcomputer.
This utility model is with Chip Microcomputer A rduinoNano for controlling device, can realize the automatic charge and discharge of lithium battery;Can realize high-precision voltage, electric current controls and protection;The high efficiency of system can be realized;Can there is good man-machine interaction;The service life of battery can be increased substantially.
Accompanying drawing explanation
Fig. 1 is circuit overall structure figure of the present utility model.
Fig. 2 is the circuit theory schematic diagram of boost-buck main body circuit of the present utility model.
Fig. 3 is the circuit theory schematic diagram of PWM drive circuit of the present utility model.
Fig. 4 is the circuit theory schematic diagram of switching switch module of the present utility model.
Fig. 5 is the circuit theory schematic diagram of voltage and current detection circuit module of the present utility model.
Fig. 6 is the circuit theory schematic diagram of input through keyboard circuit module of the present utility model.
Fig. 7 is the circuit theory schematic diagram of charge-discharge control circuit module of the present utility model.
Fig. 8 is the circuit theory schematic diagram of liquid crystal display circuit module of the present utility model.
Fig. 9 is the circuit theory schematic diagram of auxiliary power module of the present utility model.
Detailed description of the invention
Embodiment 1
Further illustrate below in conjunction with 1 to 9 pair, accompanying drawing detailed description of the invention of the present utility model:
Referring to Fig. 1 to Fig. 9, this utility model is digital charging and discharging lithium battery device, and operation principle is to detect effective information by single-chip microcomputer, it is achieved the automatic switchover of charging, discharging electric batteries state, and provides convenient external device, is user-friendly to;Digital charging and discharging lithium battery device, including charge-discharge circuit hardware body module, charge-discharge control circuit module, voltage and current detection circuit module, input through keyboard circuit module, liquid crystal display circuit module, switching switch module and auxiliary power module;Charge-discharge circuit hardware body module, charge-discharge control circuit module, voltage and current detection circuit module, input through keyboard circuit module, liquid crystal display circuit module, switching switch module and auxiliary power module between connected mode for electrical connection;Charge-discharge circuit hardware body module is for receiving the signal of described charge-discharge control circuit module and then realizing the effect of charging, electric discharge;Charge-discharge control circuit module is used for receiving the signal of the signal of voltage and current detection circuit module output and the output of input through keyboard circuit module and sending a signal to described charge-discharge circuit hardware body and LCD MODULE;Voltage and current detection circuit module is for receiving the voltage x current of described charge-discharge circuit hardware body module and sending a signal to charge-discharge control circuit module;Input through keyboard circuit module is for being sent to charge-discharge control circuit module by the signal that manual key produces;Liquid crystal display circuit module is for showing the content that charge-discharge control circuit module sends;Switching switch module is for receiving the signal of described charge-discharge control circuit module generation and realizing access and the disconnection of circuit;Auxiliary power module is for providing power supply for charge-discharge circuit hardware body module, charge-discharge control circuit module and voltage and current detection circuit module.
Further, described charge-discharge control circuit module adopts ArduinoNano single-chip microcomputer;Described charge-discharge circuit hardware body module includes PWM drive circuit and boost-buck main body circuit.
Referring to Fig. 2 and Fig. 3, described charge-discharge circuit hardware body module includes PWM drive circuit and boost-buck main body circuit;PWM drive circuit adopts two chip I R2104S_1 and IR2104S_2, chip I R2104S_1 is for receiving the output signal P-2 of ArduinoNano one-chip machine port 24 and sending signal PWM-2, chip I R2104S_2 for receiving the output signal P-1 of ArduinoNano one-chip machine port 23 and sending signal PWM-1;Described boost-buck main body circuit is made up of S1 switching tube IRF3205, S2 switching tube IRF3205, three electric capacity C3_M, C2_M, C1_M, a 380UH inductance, three diodes D1_M, D2_M, D3_M and a relay PVG612S;null380UH inductance port 1 is connected with the positive pole of electric capacity C3_M,380UH inductance port 2 is connected with the S pole of S1 switching tube and the D pole of S2 switching tube respectively,The D pole of S1 switching tube is connected with the positive pole of electric capacity C2_M,The negative pole of electric capacity C3_M、The S pole of S2 switching tube and the negative pole of electric capacity C2_M are all connected with ground wire,S1 switching tube is in parallel with diode D1_M,The S pole of S1 switching tube is connected with the positive pole of diode D1_M,The S pole of S1 switching tube is also connected with the port 6 of the chip I R2104S_2 in PWM drive circuit,The D pole of S1 switching tube is connected with the negative pole of diode D1_M,S2 switching tube is in parallel with diode D2_M,The S pole of S2 switching tube is connected with the positive pole of diode D2_M,The D pole of S2 switching tube is connected with the negative pole of diode D2_M,Electric capacity C2_M is in parallel with electric capacity C1_M,Electric capacity C2_M positive pole is connected with electric capacity C1_M positive pole,Electric capacity C2_M negative pole is connected with electric capacity C1_M negative pole,The PU_1 end of relay PVG612S is connected with the negative pole of diode D3_M,The PU_2 end of relay PVG612S is connected with the positive pole of diode D3_M;The G pole of S1 switching tube is used for receiving the signal PWM-2 from PWM drive circuit for the G pole receiving signal PWM-1, the S2 switching tube from PWM drive circuit;When battery charges, relay PVG612S disconnects, diode D3_M conducting in parallel, and battery is reliably charged, and when the cell is discharged, relay PVG612S closes, and diode D3_M short circuit in parallel, battery reliably discharges.
Referring to Fig. 4, switching on-off circuit adopts three chip PVG612S, first chip PVG612S accepts the signal RL from ArduinoNano one-chip machine port 9, second chip PVG612S accepts the signal PU1 from ArduinoNano one-chip machine port 11, 3rd chip PVG612S accepts the signal PU2 from ArduinoNano one-chip machine port 10, thus realizing RL_1 and RL_2 in charge-discharge circuit hardware body, PU_1 and PU_2, connection between PU2_1 and PU2_2 and disconnection, and then realize whether diode D3_M as shown in Figure 2 accesses circuit, whether load accesses circuit, whether direct-flow voltage regulation source accesses circuit.Multiple-working mode can be realized for device and provide guarantee.
Referring to Fig. 5, described voltage and current detection circuit module includes the first voltage detector, the second voltage detector and amperometric, described first voltage detector and the second voltage detector all adopt Hall voltage sensor TBV10/25A, described amperometric adopts Hall current sensor TBC05LX, described first voltage detector port 5 is connected with diode D3_M positive pole, described first voltage detector port 4 is connected with electric capacity C3_M negative pole, and described first voltage detector port 3 is connected with the port 5 of ArduinoNano single-chip microcomputer;Described second voltage detector port 5 is connected with electric capacity C1_M positive pole, and described second voltage detector port 4 is connected with electric capacity C1_M negative pole, and described second voltage detector port 3 is connected with the port 4 of ArduinoNano single-chip microcomputer;Described amperometric port 6 is connected with diode D3_M positive pole, and described amperometric port 5 is connected with 380UH inductance port 1, and described amperometric port 3 is connected with the port 6 of ArduinoNano single-chip microcomputer.Voltage and current that described voltage and current detection circuit module accepts charge-discharge circuit hardware body module signal VD2, VD1, CD1 of outputting it are sent to the input of ArduinoNano single-chip microcomputer.
Referring to Fig. 6, described input through keyboard circuit module includes keyboard pricking with needle and keyboard K1 to K16, wherein one end of keyboard K1 to K4 is interconnected to keyboard pricking with needle port 5, wherein one end of keyboard K5 to K8 is interconnected to keyboard pricking with needle port 6, wherein one end of keyboard K9 to K12 is interconnected to keyboard pricking with needle port 7, and wherein one end of keyboard K13 to K16 is interconnected to keyboard pricking with needle port 8;nullKeyboard K1、K5、The other end of K9 and K13 is interconnected to keyboard pricking with needle port 1,Keyboard K2、K6、The other end of K10 and K14 interconnects,Keyboard K3、K7、The other end of K11 and K15 is interconnected to keyboard pricking with needle port 3,Keyboard K4、K8、The other end of K12 and K16 is interconnected to keyboard pricking with needle port 4,Keyboard pricking with needle port 1 is connected with the port 21 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 2 is connected with the port 22 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 3 is connected with the port 25 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 4 is connected with the port 26 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 5 is connected with the port 27 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 6 is connected with the port 28 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 7 is connected with the port 29 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 8 is connected with the port 30 of ArduinoNano single-chip microcomputer.Described input through keyboard circuit module adopts the mode of manual key, and signal I03, I04, I07, I08, I09, I010, I011, I012 of its generation are delivered to the input of described ArduinoNano single-chip microcomputer by input through keyboard circuit module.Described ArduinoNano single-chip microcomputer, according to different buttons, produces different control effects.
Referring to Fig. 7, described charge-discharge control circuit module accepts the signal VD2 from described voltage and current detection circuit module, VD1, the output signal I03 of CD1 and described input through keyboard circuit module, I04, I07, I08, I09, I010, I011, I012, described charge-discharge control circuit module is according to different control targets, output determination device state includes whether overvoltage respectively, control signal PWM-1 and the PWM-2 of overcurrent protection, determine that relay leads to, disconnected control signal RL, PU1, the control signal I00 of PU2 and decision liquid-crystal display information, I01, I02, I013.
Overvoltage, current foldback circuit are nested in charge-discharge control circuit module as shown in Figure 7, can improve the service life of device and battery.The voltage VD2 at battery two ends, amperometric that charge-discharge control circuit module detects according to voltage detector as shown in Figure 5 detect that the input value of the electric current CD1 flowing through battery and input through keyboard circuit module as shown in Figure 6 together decides on whether the dutycycle of single-chip microcomputer output signal PWM-1 and PWM-2 is zero, whether be in off state namely realize overvoltage, overcurrent protection thus realizing device.
Referring to Fig. 8, liquid crystal display circuit module includes the naked screen of OLED liquid crystal display and the external pricking with needle of OLED;nullThe port 1 of the naked screen of OLED liquid crystal display、Port 8、Port 10、Port 11、Port 12、Port 13、Port 16、Port 17、Port 29、Port 30 is all connected with ground wire,The port 6 of the naked screen of OLED liquid crystal display、Port 9 is all connected with the port 5 of the external pricking with needle of OLED,The port 14 of the naked screen of OLED liquid crystal display is sequentially connected with resistance R9、The port 5 of the external pricking with needle of OLED,The port 18 of the naked screen of OLED liquid crystal display is sequentially connected with resistance R7、The port 5 of the external pricking with needle of OLED,The port 19 of the naked screen of OLED liquid crystal display is sequentially connected with resistance R8、The port 5 of the external pricking with needle of OLED,The port 26 of the naked screen of OLED liquid crystal display is sequentially connected with resistance R10、Ground wire,The port 27 of the naked screen of OLED liquid crystal display is sequentially connected with electric capacity C27、Ground wire,The port 28 of the naked screen of OLED liquid crystal display is sequentially connected with electric capacity C30、Ground wire.The external pricking with needle port 1 of OLED accepts the signal IO0 from ArduinoNano one-chip machine port 16, the external pricking with needle port 2 of OLED accepts the signal IO1 from ArduinoNano one-chip machine port 17, OLED external pricking with needle port 3 accepts to accept the signal IO13 from ArduinoNano one-chip machine port 1 from the external pricking with needle port 4 of signal IO2, OLED of ArduinoNano one-chip machine port 20.
Referring to the positive 5V of power supply of Fig. 9, the auxiliary power module supply positive and negative 12V of power supply of current/voltage detection module, power supply positive 12V and the ArduinoNano single-chip microcomputer of PWM drive circuit, auxiliary power module may also provide the DC source of 21V, is user-friendly to.
DC source can be the charging DC source provided for oneself, and this device leaves corresponding port simultaneously, it would however also be possible to employ the DC source charging of 21V, 12V, 5V as shown in Figure 9 that this device is built-in, but now, the quantity of the lithium battery of charging is restricted.
This utility model has three kinds of mode of operations, and the selection of its pattern can be determined by keyboard.
Pattern 1: charge mode
Step 1:
Keyboard selects numeral keys, Single-chip Controlling PU2_1, PU2_2 conducting as shown in Figure 2, RL_1, RL_2 disconnection, PU_1, PU_2 disconnection.Battery, DC source access circuit, and load disconnects, and device is in charged state.
Step 2:
Single-chip microcomputer reads the value of current sensor in real time, it is achieved constant-current charge, synchronizes to read battery both end voltage value, if voltage, size of current exceed setting value, it may be achieved overcharge protection.Liquid crystal shows each numerical value and circuit state in real time.
Step 3:
Can arranging current value size during constant-current charge by keyboard, maximum upper limit is up to 2A.
Step 4:
The upper limit of cell voltage during keyboard to set up charging can be passed through.
Pattern 2: discharge mode
Step 1:
Keyboard selects numeral keys, and Single-chip Controlling PU2_1, PU2_2 disconnections as shown in Figure 2, RL_1, RL_2 conducting, PU_1, PU_2 turn on.Battery, load access circuit, and DC source disconnects, and device is in discharge condition.
Step 2:
The value of the voltage sensor at single-chip microcomputer real time load two ends, it is achieved constant voltage discharge, synchronizes reading and flows through the electric current of battery and the magnitude of voltage at two ends.Liquid crystal shows each numerical value and circuit state in real time.
Step 3:
The magnitude of voltage of constant voltage discharge can by keyboard to set up.
Pattern 3: charge and discharge are automatically switched
Step 1:
Keyboard selects numeral, and Single-chip Controlling PU2_1, PU2_2 disconnections as shown in Figure 2, RL_1, RL_2 conducting, PU_1, PU_2 conducting switch according to circuit state real-time conduction and disconnection.Battery, load, DC source access circuit.
Step 2:
The real-time read voltage of single-chip microcomputer, current sensor value, when cell voltage is lower than load both end voltage, control circuit switching circuit is charged state;When cell voltage is higher than load both end voltage, control circuit switching circuit is discharge condition, no matter charges or discharge condition, remains that load both end voltage is constant.
Step 3:
The magnitude of voltage at load two ends can by keyboard to set up
Step 4:
When system is in charged state, it may be achieved overcharge protection, the magnitude of voltage overcharging protection can by keyboard to set up.
Step 5:
The each numerical value of liquid crystal display and circuit state.

Claims (5)

1. digital charging and discharging lithium battery device, it is characterised in that: include charge-discharge circuit hardware body module, charge-discharge control circuit module, voltage and current detection circuit module, input through keyboard circuit module, liquid crystal display circuit module, switching switch module and auxiliary power module;Described charge-discharge circuit hardware body module, charge-discharge control circuit module, voltage and current detection circuit module, input through keyboard circuit module, liquid crystal display circuit module, switching switch module and auxiliary power module between connected mode for electrical connection;
Described charge-discharge circuit hardware body module is for receiving the signal of described charge-discharge control circuit module;Described charge-discharge control circuit module is used for receiving the signal of the signal of described voltage and current detection circuit module output and the output of input through keyboard circuit module and sending a signal to described charge-discharge circuit hardware body and LCD MODULE;Described voltage and current detection circuit module is for receiving the voltage x current of described charge-discharge circuit hardware body module and sending a signal to described charge-discharge control circuit module;Described input through keyboard circuit module is for being sent to described charge-discharge control circuit module by the signal that manual key produces;Described liquid crystal display circuit module is for showing the content that described charge-discharge control circuit module sends;Described switching switch module is for receiving the signal of described charge-discharge control circuit module generation and realizing access and the disconnection of circuit;Described auxiliary power module is for providing working power for described charge-discharge circuit hardware body module, charge-discharge control circuit module and voltage and current detection circuit module.
2. digital charging and discharging lithium battery device according to claim 1, it is characterised in that: described charge-discharge control circuit module adopts ArduinoNano single-chip microcomputer.
3. digital charging and discharging lithium battery device according to claim 2, it is characterised in that: described charge-discharge circuit hardware body module includes PWM drive circuit and boost-buck main body circuit;PWM drive circuit adopts two chip I R2104S_1 and IR2104S_2, chip I R2104S_1 is for receiving the output signal P-2 of ArduinoNano one-chip machine port 24 and sending signal PWM-2, chip I R2104S_2 for receiving the output signal P-1 of ArduinoNano one-chip machine port 23 and sending signal PWM-1;Described boost-buck main body circuit is made up of S1 switching tube IRF3205, S2 switching tube IRF3205, three electric capacity C3_M, C2_M, C1_M, a 380UH inductance, three diodes D1_M, D2_M, D3_M and a relay PVG612S;null380UH inductance port 1 is connected with the positive pole of electric capacity C3_M,380UH inductance port 2 is connected with the S pole of S1 switching tube and the D pole of S2 switching tube respectively,The D pole of S1 switching tube is connected with the positive pole of electric capacity C2_M,The negative pole of electric capacity C3_M、The S pole of S2 switching tube and the negative pole of electric capacity C2_M are all connected with ground wire,S1 switching tube is in parallel with diode D1_M,The S pole of S1 switching tube is connected with the positive pole of diode D1_M,The S pole of S1 switching tube is also connected with the port 6 of the chip I R2104S_2 in PWM drive circuit,The D pole of S1 switching tube is connected with the negative pole of diode D1_M,S2 switching tube is in parallel with diode D2_M,The S pole of S2 switching tube is connected with the positive pole of diode D2_M,The D pole of S2 switching tube is connected with the negative pole of diode D2_M,Electric capacity C2_M is in parallel with electric capacity C1_M,Electric capacity C2_M positive pole is connected with electric capacity C1_M positive pole,Electric capacity C2_M negative pole is connected with electric capacity C1_M negative pole,The PU_1 end of relay PVG612S is connected with the negative pole of diode D3_M,The PU_2 end of relay PVG612S is connected with the positive pole of diode D3_M;The G pole of S1 switching tube is used for receiving the signal PWM-2 from PWM drive circuit for the G pole receiving signal PWM-1, the S2 switching tube from PWM drive circuit.
4. digital charging and discharging lithium battery device according to claim 3, it is characterized in that: described voltage and current detection circuit module includes the first voltage detector, second voltage detector and amperometric, described first voltage detector and the second voltage detector all adopt Hall voltage sensor TBV10/25A, described amperometric adopts Hall current sensor TBC05LX, described first voltage detector port 5 is connected with diode D3_M positive pole, described first voltage detector port 4 is connected with electric capacity C3_M negative pole, described first voltage detector port 3 is connected with the port 5 of ArduinoNano single-chip microcomputer;Described second voltage detector port 5 is connected with electric capacity C1_M positive pole, and described second voltage detector port 4 is connected with electric capacity C1_M negative pole, and described second voltage detector port 3 is connected with the port 4 of ArduinoNano single-chip microcomputer;Described amperometric port 6 is connected with diode D3_M positive pole, and described amperometric port 5 is connected with 380UH inductance port 1, and described amperometric port 3 is connected with the port 6 of ArduinoNano single-chip microcomputer.
5. digital charging and discharging lithium battery device according to claim 4, it is characterized in that: described input through keyboard circuit module includes keyboard pricking with needle and keyboard K1 to K16, wherein one end of keyboard K1 to K4 is interconnected to keyboard pricking with needle port 5, wherein one end of keyboard K5 to K8 is interconnected to keyboard pricking with needle port 6, wherein one end of keyboard K9 to K12 is interconnected to keyboard pricking with needle port 7, and wherein one end of keyboard K13 to K16 is interconnected to keyboard pricking with needle port 8;nullKeyboard K1、K5、The other end of K9 and K13 is interconnected to keyboard pricking with needle port 1,Keyboard K2、K6、The other end of K10 and K14 interconnects,Keyboard K3、K7、The other end of K11 and K15 is interconnected to keyboard pricking with needle port 3,Keyboard K4、K8、The other end of K12 and K16 is interconnected to keyboard pricking with needle port 4,Keyboard pricking with needle port 1 is connected with the port 21 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 2 is connected with the port 22 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 3 is connected with the port 25 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 4 is connected with the port 26 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 5 is connected with the port 27 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 6 is connected with the port 28 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 7 is connected with the port 29 of ArduinoNano single-chip microcomputer,Keyboard pricking with needle port 8 is connected with the port 30 of ArduinoNano single-chip microcomputer.
CN201620147139.3U 2016-02-26 2016-02-26 Digital lithium battery measurement device Expired - Fee Related CN205407324U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105576770A (en) * 2016-02-26 2016-05-11 厦门大学嘉庚学院 Digital lithium battery charging and discharging device
CN106772102A (en) * 2017-02-24 2017-05-31 河北工业大学 Battery set charge/discharge performance test apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105576770A (en) * 2016-02-26 2016-05-11 厦门大学嘉庚学院 Digital lithium battery charging and discharging device
CN106772102A (en) * 2017-02-24 2017-05-31 河北工业大学 Battery set charge/discharge performance test apparatus
CN106772102B (en) * 2017-02-24 2019-06-04 河北工业大学 Battery set charge/discharge performance test apparatus

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