CN209614522U - A kind of control of collection lead acid battery charge and arc-welding machine welding are controlled in integrated control circuit - Google Patents
A kind of control of collection lead acid battery charge and arc-welding machine welding are controlled in integrated control circuit Download PDFInfo
- Publication number
- CN209614522U CN209614522U CN201920163861.XU CN201920163861U CN209614522U CN 209614522 U CN209614522 U CN 209614522U CN 201920163861 U CN201920163861 U CN 201920163861U CN 209614522 U CN209614522 U CN 209614522U
- Authority
- CN
- China
- Prior art keywords
- circuit
- resistance
- connect
- output
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Arc Welding Control (AREA)
Abstract
The utility model discloses a kind of controls of collection lead acid battery charge and arc-welding machine welding to be controlled in integrated control circuit comprising: N76E003 chip, parameter input circuit, parameter display circuit, temperature sensing circuit, pwm signal amplifying circuit, driving isolation circuit, main loop circuit, primary current sample circuit, welding current sample circuit, charge current sample circuit and output voltage sampling circuit.The utility model has the beneficial effect that the control of collection lead acid battery charge and arc-welding machine welding are controlled in one, compared with the control circuit of arc-welding machine, the control circuit of lead acid batteries charger are independently arranged, main loop circuit, parameter input circuit, parameter display circuit and pwm signal amplifying circuit only retain one group, it does not need to repeat to be arranged, this reduces the usage amounts of component, reduce the manufacturing cost of enterprise.
Description
Technical field
The utility model relates to a kind of control circuits, and in particular to a kind of control of collection lead acid battery charge and arc-welding machine weldering
It connects and is controlled in integrated control circuit, belong to electroporation field.
Background technique
Currently, arc-welding machine available on the market and lead acid batteries charger, their control circuit is all independently arranged
's.
The control circuit of arc-welding machine and the control circuit of lead acid batteries charger, the major loop of the two phase in principle
Together, the only power device of selection difference.
Therefore, when the control circuit of the control circuit of arc-welding machine and lead acid batteries charger is independently arranged, just there is one
Partial circuit is duplicate, such as main loop circuit, parameter input circuit, parameter display circuit, pwm signal amplifying circuit etc.,
This adds increased the usage amounts of component, improve the manufacturing cost of enterprise.
Utility model content
To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of controls of collection lead acid battery charge
It is controlled in integrated control circuit with arc-welding machine welding, which can reduce the usage amount of component, reduce enterprise
Manufacturing cost.
In order to achieve the above objectives, the utility model adopts the following technical solutions:
A kind of control of collection lead acid battery charge and arc-welding machine welding are controlled in integrated control circuit, which is characterized in that
The control circuit includes: N76E003 chip, parameter input circuit, parameter display circuit, temperature sensing circuit, pwm signal amplification
Circuit, driving isolation circuit, main loop circuit, primary current sample circuit, welding current sample circuit, charge current sample electricity
Road and output voltage sampling circuit, in which:
Aforementioned parameters input circuit, parameter display circuit, temperature sensing circuit and pwm signal amplifying circuit respectively with
The corresponding pin of N76E003 chip is directly connected to；
The input, output end of aforementioned driving isolation circuit is electric with the output end of pwm signal amplifying circuit, major loop respectively
Inverter circuit connection in road；
Aforementioned primary current sample circuit, welding current sample circuit, charge current sample circuit and output voltage sampling
The input terminal of this four circuits of circuit connects with the mutual inductor T of main loop circuit, output negative pole, output negative pole, output cathode respectively
It connects, wherein welding current sample circuit and charge current sample circuit are both connected to the defeated of the sampling resistor R in main loop circuit
Outlet, the output end of this four circuits are directly connected to the corresponding pin of N76E003 chip respectively.
The control of collection lead acid battery charge and arc-welding machine welding above-mentioned are controlled in integrated control circuit, and feature exists
In aforementioned primary current sample circuit is by 5 diodes, 6 resistance, 1 voltage follower, 1 voltage comparator and 1 electricity
Hold composition, in which:
Diode D1, diode D2, diode D3 and diode D4 form bridge rectifier, the bridge rectifier
Input terminal is connect with the mutual inductor T in main loop circuit；
Resistance R18, resistance R19 and resistance R20 constitute three I-V transformation resistances, this three I-V transformation resistances and bridge-type are whole
The output signal of current circuit is in parallel；
Resistance R21 is connect with capacitor C5, and the other end of resistance R21 and the output end of bridge rectifier connect, capacitor C5
The other end ground connection；
The non-inverting input terminal of voltage follower U6B connect with the connecting node of resistance R21 and capacitor C5, inverting input terminal with
Output end connection, output end are connect with the pin of N76E003 chip；
The both ends of the diode D5 anti-phase input with the non-inverting input terminal of voltage follower U6B, voltage comparator U6A respectively
End connection；
Resistance R22 and resistance R23 are connect with the non-inverting input terminal of voltage comparator U6A, another termination of resistance R22
The other end on ground, resistance R23 is connect with+15V power supply；
The output end of voltage comparator U6A is connect with the pin of N76E003 chip.
The control of collection lead acid battery charge and arc-welding machine welding above-mentioned are controlled in integrated control circuit, and feature exists
In, aforementioned welding current sample circuit is made of 4 resistance, 2 capacitors, 1 voltage amplifier and 1 voltage follower,
In:
Resistance R9 and capacitor C1 are connect with the non-inverting input terminal of voltage amplifier U5A, the other end of resistance R9 and are led back
The output negative pole of road circuit connects, and tie point is located at the output end of sampling resistor R, the other end ground connection of capacitor C1；
Resistance R10 and resistance R11 are connect with the inverting input terminal of voltage amplifier U5A, another termination of resistance R10
The other end on ground, resistance R11 is connect with the output end of voltage amplifier U5A；
The both ends of resistance R12 connect with the non-inverting input terminal of the output end of voltage amplifier U5A, voltage follower U5B respectively
It connects；
The inverting input terminal of voltage follower U5B is connect with output end, and output end is connect with the pin of N76E003 chip；
One end of capacitor C8 is connect with+15V power supply, other end ground connection.
The control of collection lead acid battery charge and arc-welding machine welding above-mentioned are controlled in integrated control circuit, and feature exists
In aforementioned charge current sample circuit is made of 3 resistance, 1 error amplifier and 1 capacitor, in which:
One end of resistance R19 and the output negative pole of main loop circuit connect, and tie point is located at the output end of sampling resistor R,
The other end is connect with the non-inverting input terminal of error amplifier U7B；
Resistance R40 and resistance R41 are connect with the inverting input terminal of error amplifier U7B, another termination of resistance R41
The other end on ground, resistance R40 is connect with the output end of error amplifier U7B, which is also charge current sample circuit
Output end；
One end of capacitor C3 is connect with+15V power supply, other end ground connection.
The control of collection lead acid battery charge and arc-welding machine welding above-mentioned are controlled in integrated control circuit, and feature exists
In aforementioned output voltage sampling circuit is made of 4 resistance, 3 capacitors, 1 diode and 1 voltage follower, in which:
Resistance R13, resistance R14, resistance R15 and capacitor C7 link together, and the other end and diode D6 of resistance R13 connects
It connecing, the other end of diode D6 and the output cathode of main loop circuit connect, and the other end of resistance R14 and capacitor C7 are grounded,
The other end of resistance R15 is connect with the non-inverting input terminal of voltage follower U7A；
The output end of voltage follower U7A is connect with inverting input terminal；
Capacitor C2 and resistance R16 are connect with the inverting input terminal of voltage follower U7A, the other end ground connection of capacitor C2,
The other end of resistance R16 is the output end of the output voltage sampling circuit；
One end of capacitor C4 is connect with -15V power supply, other end ground connection.
The utility model has the beneficial effect that control circuit provided by the utility model, collects lead acid battery charge control
System and arc-welding machine welding are controlled in one, both can be to the charging process of high-capacity lead-acid storage battery by changing control mode
It is controlled, the welding process of arc-welding machine can also be controlled, control circuit, lead acid batteries charger with arc-welding machine
Control circuit be independently arranged and compare, main loop circuit, parameter input circuit, parameter display circuit and pwm signal amplifying circuit
Only retain one group, does not need to repeat to be arranged, this reduces the usage amounts of component, reduce the manufacturing cost of enterprise.
Detailed description of the invention
Fig. 1 is that the control of collection lead acid battery charge and arc-welding machine welding provided by the utility model are controlled in integrated control
The composition schematic diagram of circuit；
Fig. 2 is that the control of collection lead acid battery charge and arc-welding machine welding provided by the utility model are controlled in integrated control
The circuit diagram of one specific embodiment of circuit.
Specific embodiment
To keep the above-mentioned technical proposal of the utility model more obvious and easy to understand, in the following with reference to the drawings and specific embodiments
Detailed introduction is done to the utility model.
Referring to Fig.1, control circuit provided by the utility model, the control of collection lead acid battery charge and arc-welding machine welding control
In one, which is specifically included: N76E003 chip, parameter input circuit, parameter display circuit, temperature sensing circuit,
Pwm signal amplifying circuit, main loop circuit, primary current sample circuit, welding current sample circuit, fills at driving isolation circuit
Electric current sampling circuit and output voltage sampling circuit.
Operating die and each circuit are further described in detail below.
1, main loop circuit
Referring to Fig. 2, main loop circuit is by current rectifying and wave filtering circuit, inverter circuit, mutual inductor T, transformer, secondary rectification circuit
It is formed with sampling resistor R, wherein current rectifying and wave filtering circuit, inverter circuit, transformer and secondary rectification circuit are sequentially connected, mutual inductance
The primary of device T is connect with inverter circuit and transformer, and sampling resistor R is mounted on the negative output terminal of secondary rectification circuit.
2, N76E003 chip
N76E003 chip is adopted for receiving and handling primary current sample circuit, welding current sample circuit, charging current
The sampled signal of sample circuit and output voltage sampling circuit input, and a pwm signal is exported, the pwm signal duty ratio is adjustable,
And frequency is fixed.
3, parameter input circuit, parameter display circuit
Parameter input circuit and parameter display circuit are directly connected to the corresponding pin of N76E003 chip respectively, in which:
(such as charging/welding current is big for input needs to be arranged into N76E003 chip parameter for parameter input circuit
Small and selection control model (charge control mode, welding control model)；
Parameter display circuit is used to show the size of the parameter inputted by parameter input circuit.
Parameter input circuit, which has, to be increased key, reduces several keys such as key, function key, parameter key, in which:
(1) increase key, reduce key: the size of the size and adjustment parameter of output electric current when for welding to be arranged；
(2) function key: the switching of the function for selecting arc-welding machine different；
(3) parameter key: for the parameter of different function to be arranged.
4, temperature sensing circuit
Temperature sensing circuit is directly connected to the corresponding pin of N76E003 chip, for inversion electricity inside detection device
The temperature rise of road power device, and the temperature data that will test is transferred to N76E003 chip.
Referring to Fig. 2, which has an elements such as temperature detect switch (TDS), thermistor, when temperature change, thermistor
The resistance value of itself can also change, which is regular, so the voltage-to-ground of thermistor can be through N76E003 chip
It is used to the temperature variations of inverter circuit power device inside detection device after processing, when the temperature rise of power device rises to temperature
After the operating temperature for controlling switch, temperature detect switch (TDS) closure, after N76E003 chip detects this signal, shutdown pwm signal output, function
After blower is cooling, temperature detect switch (TDS) disconnects rate device, after N76E003 chip detects this signal, continues to output pwm signal
5, pwm signal amplifying circuit, driving isolation circuit
The input terminal of pwm signal amplifying circuit is directly connected to the corresponding pin of N76E003 chip, output end and driving
The input terminal of isolation circuit connects, and the inverter circuit in the output end and main loop circuit of isolation circuit is driven to connect.
Pwm signal amplifying circuit is used to amplify the pwm signal of N76E003 chip output.
The changeable frequency that driving isolation circuit is used to export pwm signal amplifying circuit and the pwm signal with dead zone function
Being converted into multiple groups synchronous backward, the driving signal on ground, the driving signal are not used to drive the inverter circuit work in main loop circuit altogether
Make.
6, primary current sample circuit
The secondary connection of the mutual inductor T of the input terminal and main loop circuit of primary current sample circuit, output end with
The corresponding pin of N76E003 chip is directly connected to.
Primary current sample circuit is used to acquire the size of the electric current by inverter circuit.
Referring to Fig. 2, primary current sample circuit is compared by 5 diodes, 6 resistance, 1 voltage follower, 1 voltage
Device and 1 capacitor composition.
Diode D1, diode D2, diode D3 and diode D4 form bridge rectifier, the bridge rectifier
Input terminal is connect with the mutual inductor T in main loop circuit.
Resistance R18, resistance R19 and resistance R20 constitute three I-V transformation resistances, this three I-V transformation resistances and bridge-type are whole
The output signal of current circuit is in parallel.
Resistance R21 is connect with capacitor C5, and the other end of resistance R21 and the output end of bridge rectifier connect, capacitor C5
The other end ground connection.
The non-inverting input terminal of voltage follower U6B connect with the connecting node of resistance R21 and capacitor C5, inverting input terminal with
Output end connection, output end are connect with the pin of N76E003 chip.
The both ends of the diode D5 anti-phase input with the non-inverting input terminal of voltage follower U6B, voltage comparator U6A respectively
End connection.
Resistance R22 and resistance R23 are connect with the non-inverting input terminal of voltage comparator U6A, another termination of resistance R22
The other end on ground, resistance R23 is connect with+15V power supply.
The output end of voltage comparator U6A is connect with the pin of N76E003 chip.
It, should after the primary current sample circuit collects primary current signal from the mutual inductor T in main loop circuit
Primary current signal successively after the effect of bridge rectifier and I-V transformation resistance, is converted to voltage signal, voltage letter
A number point two-way is transmitted, specific:
All the way after voltage follower U6B, N76E003 chip is transferred to by the 2nd pin, in N76E003 chip
After carrying out A/D conversion, a control signal is formed, which is used to control the duty ratio of PWM；
Another way is through over-voltage comparator U6A, when the voltage of the inverting input terminal of voltage comparator U6A is greater than homophase input
When the voltage at end, voltage comparator U6A exports low level signal, the 14th pin company of the low level signal and N76E003 chip
It connects, when N76E003 chip detects that the 14th pin is low level, forms another control signal, the control signal is for closing
The pwm signal output of disconnected N76E003 chip, realizes overcurrent protection function.
7, welding current sample circuit
The input terminal of welding current sample circuit and the output negative pole of main loop circuit connect, and tie point is located at major loop electricity
The output end of sampling resistor R in road.
Welding current sample circuit is used to acquire the big of the welding current of main loop circuit output in the case where welding control model
It is small, it is realized particular by the voltage difference at the acquisition both ends sampling resistor R.
Referring to Fig. 2, welding current sample circuit is by 4 resistance, 2 capacitors, 1 voltage amplifier and 1 voltage follow
Device composition.
Resistance R9 and capacitor C1 are connect with the non-inverting input terminal of voltage amplifier U5A, the other end of resistance R9 and are led back
The output negative pole of road circuit connects, and tie point is located at the output end of sampling resistor R, the other end ground connection of capacitor C1.
Resistance R10 and resistance R11 are connect with the inverting input terminal of voltage amplifier U5A, another termination of resistance R10
The other end on ground, resistance R11 is connect with the output end of voltage amplifier U5A.
The both ends of resistance R12 connect with the non-inverting input terminal of the output end of voltage amplifier U5A, voltage follower U5B respectively
It connects.
The inverting input terminal of voltage follower U5B is connect with output end, and output end is connect with the pin of N76E003 chip.
One end of capacitor C8 is connect with+15V power supply, other end ground connection.
The voltage differential signal at the both ends welding current sample circuit collected sampling resistor R is by in-phase amplifier U5A's
Amplification and voltage follower U5B are connected with the 20th pin of N76E003 chip with subsequent in the same direction, in N76E003 chip into
After row A/D conversion, a control signal is formed, which is used to control the duty ratio of PWM.
8, charge current sample circuit
The input terminal of charge current sample circuit and the output negative pole of main loop circuit connect, and tie point is located at major loop electricity
The output end of sampling resistor R in road.
Charge current sample circuit is used to acquire filling for main loop circuit output under lead acid battery charge control model
The size of electric current is realized particular by the voltage difference at the acquisition both ends sampling resistor R.
Referring to Fig. 2, charge current sample circuit is made of 3 resistance, 1 error amplifier and 1 capacitor.
One end of resistance R19 and the output negative pole of main loop circuit connect, and tie point is located at the output end of sampling resistor R,
The other end is connect with the non-inverting input terminal of error amplifier U7B.
Resistance R40 and resistance R41 are connect with the inverting input terminal of error amplifier U7B, another termination of resistance R41
The other end on ground, resistance R40 is connect with the output end of error amplifier U7B, which is also charge current sample circuit
Output end.
One end of capacitor C3 is connect with+15V power supply, other end ground connection.
After charge current sample circuit collects the voltage difference on sampling resistor R, collected signal is through error amplifier
It is connected after U7B with the 3rd pin of N76E003 chip, after carrying out A/D conversion in N76E003 chip, forms a control letter
Number, which is used to monitor charging current and control the duty ratio of pwm signal.
9, output voltage sampling circuit
The input terminal of output voltage sampling circuit and the output cathode of main loop circuit connect, output end and N76E003 core
The corresponding pin of piece is directly connected to.
Output voltage sampling circuit is used to acquire weldingvoltage in the case where welding control model, acquire under charge control mode
The voltage at lead-acid accumulator both ends.
Referring to Fig. 2, output voltage sampling circuit is by 4 resistance, 3 capacitors, 1 diode and 1 voltage follower group
At.
Resistance R13, resistance R14, resistance R15 and capacitor C7 link together, and the other end and diode D6 of resistance R13 connects
It connecing, the other end of diode D6 and the output cathode of main loop circuit connect, and the other end of resistance R14 and capacitor C7 are grounded,
The other end of resistance R15 is connect with the non-inverting input terminal of voltage follower U7A.
The output end of voltage follower U7A is connect with inverting input terminal.
Capacitor C2 and resistance R16 are connect with the inverting input terminal of voltage follower U7A, the other end ground connection of capacitor C2,
The other end of resistance R16 is the output end of the output voltage sampling circuit.
One end of capacitor C4 is connect with -15V power supply, other end ground connection.
The collected output voltage signal of output voltage sampling circuit first passes through diode D6, later using resistance R13
Converted after the effect of the partial pressure of resistance R13 and resistance R14 using voltage follower U7A impedance with resistance R14, it is last and
1st pin of N76E003 chip is connected, and after carrying out A/D conversion in N76E003 chip, forms a control signal, the control
Signal is for adjusting the duty ratio of PWM and the size of push current and selecting different charging moulds under charge control mode
Formula.
Arc-welding machine and lead acid batteries charger in the standby state, first pass through in control circuit provided by the utility model
Parameter input circuit select control model --- welding control model, charge control mode.
1, control model is welded
In the case where welding control model, primary current sample circuit acquires the primary current signal on main loop circuit, this one
Primary current signal is converted into voltage signal in primary current sample circuit, and then the voltage signal divides two-way to be transmitted:
It exports all the way by voltage follower U6B to the 2nd pin of N76E003 chip, carries out A/D conversion, the signal is for controlling PWM
Duty ratio；Another way is through over-voltage comparator U6A, when the voltage of the inverting input terminal of voltage comparator U6A is greater than with mutually defeated
When entering the voltage at end, voltage comparator U6A exports the 14th pin of low level signal to N76E003 chip, and the signal is for closing
The pwm signal output of disconnected N76E003 chip, realizes overcurrent protection function.At the same time, welding current sample circuit acquisition is led back
The output current signal of road circuit, output voltage sampling circuit acquire the output voltage signal of main loop circuit, collected master
The output current signal and output voltage signal of loop circuit are all transferred to N76E003 chip, and A/ is carried out in N76E003 chip
After D conversion, the pwm signal that a duty ratio is adjustable and frequency is fixed is finally exported, which successively puts by pwm signal
After big circuit amplification, driving isolation circuit conversion, recently enter in the inverter circuit in main loop circuit, to inverter circuit
Duty ratio is controlled, and realizes the purpose of constant current output.
In the case where welding control model, the size of output electric current when welding, switching arc can be set by parameter input circuit
The function of welding machine, the parameter that different function is arranged, parameter display circuit can be current by real-time displays such as charactron, indicator lights
All parameters.
2, charge control mode
Under charge control mode, N76E003 chip does not first generate pwm signal, at this time the output end of main loop circuit
Voltage is 0V, defeated when the positive and negative anodes of battery connect the output cathode and output negative pole in the output end of main loop circuit respectively
The voltage signal of voltage sampling circuit acquisition battery out, at the same time, charge current sample circuit acquires charging current signal,
The voltage signal and charging current signal of collected battery are all transferred to N76E003 chip, carry out in N76E003 chip
After A/D conversion, the pwm signal that a duty ratio is adjustable and frequency is fixed is finally exported, which successively passes through pwm signal
After amplifying circuit amplification, driving isolation circuit conversion, recently enter in the inverter circuit in main loop circuit, to inverter circuit
Duty ratio controlled, realize that the voltage of lead-acid accumulator uses the purpose of different charging modes in different phase.
In charging process, the size of battery voltage, the size of control output electric current realize battery not check at any time
Switch the function of different charging modes with the stage.
Voltage fast lifting is made using Weak current active mode in the battery overdischarge stage, subsequently into pulse perseverance
The current charge stage carries out constant-voltage charge after battery voltage to certain value, after accumulator electric-quantity further restores, enters
Trickle floating charge state, after maintaining a period of time, charger stops output, and charging process is completed at this time.
Under charge control mode, different charging currents and different charging sides can be selected by parameter input circuit
Formula, the charging voltage and charging current that parameter display circuit can be current by real-time displays such as charactron, indicator lights, facilitates use
Family uses.
It should be noted that above-described embodiment does not limit the utility model in any form, it is all to use equivalent replacement or wait
The mode technical solution obtained for imitating transformation, all falls in the protection scope of the utility model.
Claims (5)
1. a kind of collection lead acid battery charge control and arc-welding machine welding are controlled in integrated control circuit, which is characterized in that should
Control circuit includes: N76E003 chip, parameter input circuit, parameter display circuit, temperature sensing circuit, pwm signal amplification electricity
Road, driving isolation circuit, main loop circuit, primary current sample circuit, welding current sample circuit, charge current sample circuit
And output voltage sampling circuit, in which:
The parameter input circuit, parameter display circuit, temperature sensing circuit and pwm signal amplifying circuit respectively with N76E003
The corresponding pin of chip is directly connected to；
The input, output end of the driving isolation circuit is respectively and in the output end of pwm signal amplifying circuit, main loop circuit
Inverter circuit connection；
The primary current sample circuit, welding current sample circuit, charge current sample circuit and output voltage sampling circuit
The input terminal of this four circuits is connect with mutual inductor T, output negative pole, output negative pole, the output cathode of main loop circuit respectively,
In, welding current sample circuit and charge current sample circuit are both connected to the output end of the sampling resistor R in main loop circuit,
The output end of this four circuits is directly connected to the corresponding pin of N76E003 chip respectively.
2. collection lead acid battery charge control according to claim 1 and arc-welding machine welding are controlled in integrated control electricity
Road, which is characterized in that the primary current sample circuit is by 5 diodes, 6 resistance, 1 voltage follower, 1 voltage ratio
Compared with device and 1 capacitor composition, in which:
Diode D1, diode D2, diode D3 and diode D4 form bridge rectifier, the input of the bridge rectifier
End is connect with the mutual inductor T in main loop circuit；
Resistance R18, resistance R19 and resistance R20 constitute three I-V transformation resistances, this three I-V transformation resistances and bridge rectifier electricity
The output signal on road is in parallel；
Resistance R21 is connect with capacitor C5, and the other end of resistance R21 and the output end of bridge rectifier connect, and capacitor C5's is another
One end ground connection；
The non-inverting input terminal of voltage follower U6B connect with the connecting node of resistance R21 and capacitor C5, inverting input terminal and output
End connection, output end are connect with the pin of N76E003 chip；
The both ends of diode D5 connect with the non-inverting input terminal of voltage follower U6B, the inverting input terminal of voltage comparator U6A respectively
It connects；
Resistance R22 and resistance R23 are connect with the non-inverting input terminal of voltage comparator U6A, the other end ground connection of resistance R22, electricity
The other end of resistance R23 is connect with+15V power supply；
The output end of voltage comparator U6A is connect with the pin of N76E003 chip.
3. collection lead acid battery charge control according to claim 1 and arc-welding machine welding are controlled in integrated control electricity
Road, which is characterized in that the welding current sample circuit by 4 resistance, 2 capacitors, 1 voltage amplifier and 1 voltage with
It is formed with device, in which:
Resistance R9 and capacitor C1 are connect with the non-inverting input terminal of voltage amplifier U5A, the other end and the major loop electricity of resistance R9
The output negative pole on road connects, and tie point is located at the output end of sampling resistor R, the other end ground connection of capacitor C1；
Resistance R10 and resistance R11 are connect with the inverting input terminal of voltage amplifier U5A, the other end ground connection of resistance R10, electricity
The other end of resistance R11 is connect with the output end of voltage amplifier U5A；
The both ends of resistance R12 are connect with the non-inverting input terminal of the output end of voltage amplifier U5A, voltage follower U5B respectively；
The inverting input terminal of voltage follower U5B is connect with output end, and output end is connect with the pin of N76E003 chip；
One end of capacitor C8 is connect with+15V power supply, other end ground connection.
4. collection lead acid battery charge control according to claim 1 and arc-welding machine welding are controlled in integrated control electricity
Road, which is characterized in that the charge current sample circuit is made of 3 resistance, 1 error amplifier and 1 capacitor, in which:
One end of resistance R19 and the output negative pole of main loop circuit connect, and tie point is located at the output end of sampling resistor R, another
End is connect with the non-inverting input terminal of error amplifier U7B；
Resistance R40 and resistance R41 are connect with the inverting input terminal of error amplifier U7B, the other end ground connection of resistance R41, electricity
The other end of resistance R40 is connect with the output end of error amplifier U7B, which is also the output of charge current sample circuit
End；
One end of capacitor C3 is connect with+15V power supply, other end ground connection.
5. collection lead acid battery charge control according to claim 1 and arc-welding machine welding are controlled in integrated control electricity
Road, which is characterized in that the output voltage sampling circuit is by 4 resistance, 3 capacitors, 1 diode and 1 voltage follower
Composition, in which:
Resistance R13, resistance R14, resistance R15 and capacitor C7 link together, and the other end of resistance R13 is connect with diode D6,
The other end of diode D6 and the output cathode of main loop circuit connect, and the other end of resistance R14 and capacitor C7 are grounded, resistance
The other end of R15 is connect with the non-inverting input terminal of voltage follower U7A；
The output end of voltage follower U7A is connect with inverting input terminal；
Capacitor C2 and resistance R16 are connect with the inverting input terminal of voltage follower U7A, the other end ground connection of capacitor C2, resistance
The other end of R16 is the output end of the output voltage sampling circuit；
One end of capacitor C4 is connect with -15V power supply, other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920163861.XU CN209614522U (en) | 2019-01-30 | 2019-01-30 | A kind of control of collection lead acid battery charge and arc-welding machine welding are controlled in integrated control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920163861.XU CN209614522U (en) | 2019-01-30 | 2019-01-30 | A kind of control of collection lead acid battery charge and arc-welding machine welding are controlled in integrated control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209614522U true CN209614522U (en) | 2019-11-12 |
Family
ID=68452608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920163861.XU Active CN209614522U (en) | 2019-01-30 | 2019-01-30 | A kind of control of collection lead acid battery charge and arc-welding machine welding are controlled in integrated control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209614522U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116021118A (en) * | 2023-03-29 | 2023-04-28 | 电王精密电器(北京)有限公司 | Power supply control system of engine welding machine |
| CN118162723A (en) * | 2024-04-16 | 2024-06-11 | 苏州绿恺动力电子科技有限公司 | Welding machine control circuit |
-
2019
- 2019-01-30 CN CN201920163861.XU patent/CN209614522U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116021118A (en) * | 2023-03-29 | 2023-04-28 | 电王精密电器(北京)有限公司 | Power supply control system of engine welding machine |
| CN118162723A (en) * | 2024-04-16 | 2024-06-11 | 苏州绿恺动力电子科技有限公司 | Welding machine control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106129509B (en) | Integrated battery of charge-discharge controller | |
| CN106253395B (en) | The electronic automobile-used Intelligent charging unit of one kind and its application method | |
| CN108199445A (en) | The active equalization circuit and method of a kind of series-connected batteries | |
| CN105720646B (en) | A kind of charging current limiter circuit for stand-by power supply after communication base station | |
| CN201355771Y (en) | Intelligent charger of electric automobile batteries | |
| CN209614522U (en) | A kind of control of collection lead acid battery charge and arc-welding machine welding are controlled in integrated control circuit | |
| CN109216804A (en) | A kind of the bidirectional equalization circuit and equalization methods of series-connected battery modules | |
| CN101282044B (en) | Matching circuit of solar battery as well as implementing method thereof | |
| CN102496993A (en) | Quick charging machine | |
| CN101783521A (en) | Charging and discharging dynamic voltage-balancing circuit and power supply using same | |
| CN103475078B (en) | A kind of charging device of high-power power battery group | |
| CN102751777B (en) | Intelligent lead-acid battery charger | |
| CN205092599U (en) | Equalizing charge device of multisection battery | |
| CN208046259U (en) | A kind of active equalization circuit of series-connected batteries | |
| CN204144993U (en) | A kind of electric automobile lithium battery charge balancing control circuit | |
| CN107415765B (en) | A kind of batteries of electric automobile charge/discharge balancing system | |
| CN208209602U (en) | A kind of new energy intelligent charging system | |
| CN206517300U (en) | A kind of constant current input power controls circuit | |
| CN212447151U (en) | Anti-bulging charging control circuit and charger | |
| CN214227917U (en) | A high-power intelligent charging ware for fork truck | |
| CN205724989U (en) | Charge-discharge control system is all pressed in super capacitor group energy storage | |
| CN105743198B (en) | It is a kind of based on Bradycardia punching can on-line debugging formula charging circuit | |
| CN211878138U (en) | On-line monitoring device for internal resistance of storage battery of power system | |
| CN200976382Y (en) | Intelligent quick charging machine | |
| CN204089239U (en) | A kind of cell batteries dynamic equalization charging circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |