CN2034098U - Scr arc welding rectifier and integrated controlled circuit - Google Patents
Scr arc welding rectifier and integrated controlled circuit Download PDFInfo
- Publication number
- CN2034098U CN2034098U CN 88205380 CN88205380U CN2034098U CN 2034098 U CN2034098 U CN 2034098U CN 88205380 CN88205380 CN 88205380 CN 88205380 U CN88205380 U CN 88205380U CN 2034098 U CN2034098 U CN 2034098U
- Authority
- CN
- China
- Prior art keywords
- circuit
- scr
- arc welding
- integrated
- rectifier
- 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.)
- Granted
Links
Images
Landscapes
- Arc Welding Control (AREA)
Abstract
The utility model relates to a silicon control arc welding rectifier and integration controlling circuit. A main circuit of the utility model is in a double-reverse star-shaped silicon control rectifier type with a balancing reactor, and a control circuit is composed of a simultaneous circuit, a phase shifting circuit, a triggering circuit, a current negative feedback circuit, a voltage feedback circuit and an overload protection circuit. The control circuit adopts integrated components to increase reliability so that the arc welding rectifier is debugged and repaired conveniently, and a control board can be miniaturized. The utility model can be widely used for manual arc welding, automatic submerged arc welding, TIG welding and arc air gouging power supplies, and the utility model has the advantages of advanced circuit, good welding quality, broad application and is warmly accepted by welding industry.
Description
The utility model relates to a kind of arc welding rectifier and control circuit thereof, the control circuit of particularly integrated (IC).
To arc welding rectifier of the prior art and control circuit, what adopt basically is resolution element, transfer the ZX5 series controllable silicon manual electric arc welding rectifier of manufacturer production as Chengdu electric welding machine research institute of machinery committee, its control circuit is except that using two integrated operational amplifiers, all the other all adopt triode, unijunction transistor etc. to separate element, the function of circuit is not good enough yet, and therefore, the reliability of arc welding rectifier, stability are not satisfactory.Particularly in the use, all bring certain difficulty in the debugging.More difficultly accomplish miniaturization.
Task of the present utility model will provide a kind of integrated control circuit that has paralleing reactor double reverse-stars type arc welding silicon controlled rectifier.Comprise: integrated control circuits such as synchronous circuit, phase-shift circuit, circuits for triggering, current negative feedback circuit, voltage feedback circuit, overload protecting circuit; thereby improve the reliability and stability of welding machine; guaranteed the welding quality of welding machine; simplified debugging to arc-welding machine; reduce cost, realized the miniaturization of control panel.
Task of the present utility model is finished as follows.
The utility model is by main circuit ［ 13 ］ (main transformer B
1, silicon controlled rectifier (SCR) SCR
1-SCR
3SCR
4-SCR
6, paralleing reactor PDK, out put reactor DK, current divider FL) and integrated component control circuit ［ 14 ］ and power supply ［ 15 ］ formation formed.Integrated operational amplifier (T in the control circuit
01-T
05T
08-T
11), integrated NAND gate (T
06-T
07T
12-T
13), pulse transformer (MB
1, MB
2), controllable silicon (SCR
7-SCR
8), diode, resistance, electric capacity form three the tunnel become two the tunnel synchronously, phase shift, circuits for triggering, remove to trigger six controllable silicon (SCR in the main circuit ［ 13 ］
1-SCR
3SCR
4-SCR
6), and be provided with formation arc welding silicon controlled rectifier and integrated control circuits such as current negative feedback circuit, voltage feedback circuit and overload protecting circuit.
The utility model has adopted certain control measure again owing to adopt integrated component on circuit, thereby the utility model is widely used, not only can be as manual electric arc welding, TIG weldering, Lincoln weld, air-arc cutting power supply.Change its feedback circuit and can also be used as CO
2Weldering, MIG weldering power supply, also can be as the rectifier power supply.Advantages such as this device has good reliability, stability is good, welding procedure strong, debugging is convenient, cost is low, easy to use, control panel miniaturization.Opened up newly for welding profession and to have risen abruptly.
The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof:
Fig. 1 is the arc welding rectifier block diagram.
Fig. 2 is an arc welding rectifier main circuit schematic circuit.
Fig. 3 is synchronous circuit, phase-shift circuit, the circuits for triggering schematic circuit of arc welding rectifier control circuit.
Fig. 4 is current negative feedback circuit, voltage feedback circuit, the overload protecting circuit schematic circuit of arc welding rectifier control circuit.
With reference to Fig. 1, the utility model comprises that main circuit ［ 13 ］ and a control circuit ［ 14 ］ and the power circuit ［ 15 ］ by synchrotrans ［ 6 ］, synchronous circuit ［ 7 ］, phase-shift circuit ［ 8 ］, circuits for triggering ［ 9 ］, overload protecting circuit ［ 10 ］, current negative feedback circuit ［ 11 ］, voltage feedback circuit formations such as ［ 12 ］ that three-phase main transformer ［ 1 ］, three-phase rectifier ［ 2 ］, paralleing reactor ［ 3 ］, out put reactor ［ 4 ］ and current divider ［ 5 ］ constitute form arc welding silicon controlled rectifier and integrated control circuit.
Main transformer B as Fig. 2 main circuit ［ 13 ］
1Be connected into Y/Y-, its six controllable silicon (SCR
1-SCR
3SCR
4-SCR
6) constitute band paralleing reactor double reverse-stars type silicon controlled rectifier (SCR), wherein three controllable silicon (SCR with paralleing reactor PDK
1-SCR
3) be one group, its control utmost point through three resistance R respectively with three diode (Z
1-Z
3) negative pole join and diode (Z
1-Z
3) positive pole be connected to a bit, exit is " a "; Another group controllable silicon (SCR
4-SCR
6) connection is identical with the former, exit is " d ", and two groups of silicon controlled anodes connect together separately, exit is respectively " b " and " c ", two exits " b " and " c " join by paralleing reactor PDK, the mid point of paralleing reactor and out put reactor ［ DK ］, current divider ［ FL ］ are in series, and its exit is " G ", main transformer B
1" mid point " exit be " H ", then HG is the output of arc welding rectifier.
Shown in Figure 3: the synchronous circuit of control circuit ［ 14 ］ is by the big device (T of the integrated transporting discharging that is connected into three road comparators
01-T
03) form the three-phase synchronous signal sample circuit and by integrated operational amplifier (T
04-T
05), integrated NAND gate (T
06-T
07), resistance, electric capacity, diode (D
1-D
2, D
3-D
4) wait three tunnel of composition to become the phase-splitting differential amplification and rectification circuit formation of two-way, obtaining 180 ° of two-way phase phasic differences, every road differs 120 ° electronegative potential synchronization pulse.Phase-shift circuit ［ 8 ］ is by integrated operational amplifier (T
08-T
09), resistance, electric capacity forms two-way sawtooth voltage comparison circuit, the operational amplifier inverting input, the sawtooth voltage that under the synchronizing signal effect, forms, its in-phase input end is through (n) end input feedback signal, two voltages are through relatively realizing phase shift.Integrated operational amplifier (T
10-T
11), resistance, electric capacity, light emitting diode etc. form the controlled square-wave generator of two-way, integrated NAND gate (T
12-T
13), output pulse transformer (MB
1, MB
2), controllable silicon (SCR
7, SCR
8), resistance, electric capacity, diode etc. form two-way series square-wave pulse circuits for triggering ［ 9 ］, by the forward position of serial square-wave pulse first square wave of phase-shift circuit ［ 8 ］ control, realized two controllable silicon (SCR in the circuits for triggering
7, SCR
8) phase shift trigger, and then reach six controllable silicon (SCR that trigger in the main circuit
1-SCR
3SCR
4-SCR
6).Integrated NAND gate (T
12-T
13) two inputs be connected to a bit (m), be the overload protection control end, when m end during for electronegative potential, the circuits for triggering no-output.
Shown in Figure 4: as to be the scheme circuit of Current Negative Three-Point Capacitance, voltage feedback, overload protecting circuit and compensation of line voltage circuit.Current negative feedback circuit ［ 11 ］ is by integrated operational amplifier (T
14-T
15), potentiometer (W
1, W
5, W
6), the two-stage dc amplifier formed such as resistance, electric capacity, voltage-stabiliser tube, guaranteed that arc welding rectifier obtains dropping characteristic.The size of output current is by potentiometer (W
5, W
6) adjust the size of welding current, by potentiometer (W
6) adjust, by integrated operational amplifier (T
16), potentiometer (W
2, W
3), K switch
2, resistance, electric capacity and diode etc. form the voltage feedback circuit of blow force of arc or push current, as switch (K
2) put when cold end, the executed arc voltage feedback signal is via integrated operational amplifier (T
16) relatively amplify the result, when making arc voltage reduce to 30 volts of left and right sides, potentiometer (W
3) the output negative potential, through integrated operational amplifier (T
15) after the amplification, through W
6Deliver to phase-shift circuit (T
08-T
09) input (n) point, make the arc welding rectifier external characteristics form blow force of arc and drag outward.As switch (K
2) put when hot end, in the time of below then external characteristics is reduced to 20 volts, form push current and drag outward, as potentiometer (W
1, W
2) when linking, guaranteed that the outer flex point of dragging of external characteristics raises with load line.By integrated operational amplifier (T
17), controllable silicon SCR
9, resistance, electric capacity, diode constitutes overload protecting circuit ［ 10 ］, when the arc welding rectifier output current surpasses three times of load current value, controllable silicon SCR
9Conducting makes (m) point be electronegative potential, circuits for triggering no-output.By potentiometer W
4, resistance, and the control power supply constitute the compensation of line voltage circuit, the positive output end of pressure-stabilizing of its " e " termination voltage-stabilized power supply ［ 15 ］, its " f " point connects the last output end of pressure-stabilizing of voltage-stabilized power supply ［ 15 ］, the precision of the bucking voltage that net is pressed is by potentiometer (W
4) adjust.
Its control circuit of the utility model is stable, reliability is strong, debugging is convenient, and its welding technological properties is good, has wide range of applications. Except doing the manual electric arc welding power supply, can also be used for TIG weldering, Lincoln weld and carbon arc air gouging power supply, opened up newly for welding profession and risen abruptly.
Claims (2)
1, a kind of arc welding silicon controlled rectifier and control circuit of being made up of main transformer [1], silicon controlled rectifier (SCR) [2], paralleing reactor [3], out put reactor [4], current divider [5], synchrotrans [6], synchronous circuit [7], phase-shift circuit [8], circuits for triggering [9], overload protecting circuit [10], current negative feedback circuit [11], voltage feedback circuit [12], power circuit [15] is characterized in that:
A) synchronous circuit [7] is by integrated operational amplifier (T
01-T
03) be connected into three-phase synchronous signal sample circuit and integrated operational amplifier (T that three road voltage comparators are formed
04-T
05), integrated NAND gate (T
06-T
07), and resistance, electric capacity, diode form three tunnel phase-splitting differential amplification and rectification circuits that become two-way and constitute.
B) circuits for triggering [9] are by integrated operational amplifier (T
10-T
11), resistance, electric capacity, light emitting diode (D
5, D
6) form the controlled square-wave generator of two-way and by integrated NAND gate (T
12-T
13), light emitting diode (D
7, D
8), pulse transformer (MB
1, MB
2), controllable silicon (SCR
7, SCR
8), resistance, electric capacity forms two-way series square wave circuits for triggering and constitutes.
2, by described silicon controlled rectifier (SCR) of claim 1 and control circuit, it is characterized in that: overload protecting circuit ［ 10 ］ output is connected in integrated NAND gate (T
12-T
13) a bit (m) of input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88205380 CN2034098U (en) | 1988-05-10 | 1988-05-10 | Scr arc welding rectifier and integrated controlled circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88205380 CN2034098U (en) | 1988-05-10 | 1988-05-10 | Scr arc welding rectifier and integrated controlled circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2034098U true CN2034098U (en) | 1989-03-15 |
Family
ID=4839794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88205380 Granted CN2034098U (en) | 1988-05-10 | 1988-05-10 | Scr arc welding rectifier and integrated controlled circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2034098U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434222C (en) * | 2006-08-10 | 2008-11-19 | 上海人造板机器厂有限公司 | Welding process and apparatus for major diameter roller |
| CN103008837A (en) * | 2012-12-26 | 2013-04-03 | 南通三九焊接机器制造有限公司 | Out-pulling inflection point control circuit |
| CN105798428A (en) * | 2016-05-20 | 2016-07-27 | 柳州职业技术学院 | Welding power supply device with low impact load |
-
1988
- 1988-05-10 CN CN 88205380 patent/CN2034098U/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434222C (en) * | 2006-08-10 | 2008-11-19 | 上海人造板机器厂有限公司 | Welding process and apparatus for major diameter roller |
| CN103008837A (en) * | 2012-12-26 | 2013-04-03 | 南通三九焊接机器制造有限公司 | Out-pulling inflection point control circuit |
| CN105798428A (en) * | 2016-05-20 | 2016-07-27 | 柳州职业技术学院 | Welding power supply device with low impact load |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102654828B (en) | Method for increasing response speed of analog adder, analog adder and transformer | |
| CN1180987A (en) | Lamp power supply circuit with feedback circuit for dynamically adjusting lamp current | |
| CN105537728B (en) | It is a kind of to improve inverter argon arc welding machine low current arcing initiation success rate and the circuit of stability | |
| CN107040022A (en) | A kind of piecewise linearity capacitor constant-current charging power | |
| CN110212761A (en) | A kind of a variety of output mode conversion control circuits of Switching Power Supply | |
| CN2034098U (en) | Scr arc welding rectifier and integrated controlled circuit | |
| CN2236669Y (en) | Single-end flyback switching power supply | |
| CN100423436C (en) | Single-phase controllable rectifying power supply with high power factor | |
| CN107742972A (en) | Continuous conduction mode double hysteresis pulse sequence control method and its device | |
| CN2508464Y (en) | Sampling interface circuit structure using switch capacitance technique | |
| CN206370777U (en) | A kind of high PF constant pressures BUCK controls circuit | |
| CN102651926A (en) | Auxiliary source circuit | |
| CN2794040Y (en) | Isolated microcircuit module with double switches and thick membrane | |
| CN2314885Y (en) | Welding device | |
| CN216901382U (en) | Power output multi-point voltage stabilization control circuit | |
| CN201083985Y (en) | Electric welding machine output safety voltage controller | |
| CN1086615A (en) | Be applicable to the module parallel power factor correcting method and the device of arbitrary load | |
| CN219724889U (en) | Airless self-protection inverter welding machine circuit | |
| CN2031973U (en) | Phase-shifting pulse generator for thyristor rectifying equipment | |
| CN2239101Y (en) | Wide band 0-360 degree phase shifter | |
| CN204271963U (en) | 220V high power direct-current motor speed regulator | |
| CN2390228Y (en) | Two-way SCR controller | |
| CN2143380Y (en) | Overcurrent relay protector | |
| CN201830539U (en) | Dimming ballast of electrodeless lamp | |
| CN2314510Y (en) | Universal switching power source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right |