CN209175095U - A kind of anti-jamming circuit applied in argon arc welding machine - Google Patents
A kind of anti-jamming circuit applied in argon arc welding machine Download PDFInfo
- Publication number
- CN209175095U CN209175095U CN201822067195.8U CN201822067195U CN209175095U CN 209175095 U CN209175095 U CN 209175095U CN 201822067195 U CN201822067195 U CN 201822067195U CN 209175095 U CN209175095 U CN 209175095U
- Authority
- CN
- China
- Prior art keywords
- resistance
- comparator
- transistor
- welding machine
- arc welding
- 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 anti-jamming circuits applied in argon arc welding machine, belong to technical field of electricity, including single-chip microcontroller U1, single-chip microcontroller U1 output signal STB or CLK is connected with comparator U1A reverse side, one end of capacitor C1 is connected with comparator U1A reverse side, capacitor C1 other end connection ground, the one end resistance R1 connects 5V voltage, the resistance R1 other end connects comparator U1A in-phase end, the one end resistance R2 connection connection comparator U3A in-phase end, resistance R2 other end connection ground, the utility model improves signal transmission level, its noise margin greatly increases, efficiently solve the electromagnetic interference problem in signals transmission, make argon arc welding machine also being capable of reliably working under strong electromagnetic interference environment, numeral method is stablized, there is no scintillation.
Description
Technical field
The utility model relates to technical field of electricity, specifically a kind of anti-jamming circuit applied in argon arc welding machine.
Background technique
In welding machine, the choosing of 5V level piece and clock signal that single-chip microcontroller exports on control panel will be transferred to the number on front panel
Code pipe driving chip, transmission line is long, and transmission signal level is low.And there are high frequency, high-voltage electromagnetics to interfere in argon arc welding machine
(EMI), to transmit signal vulnerable to interference, cause digital pipe driving chip to malfunction, be mainly manifested in numeral method sudden strain of a muscle
It sparkles.So improving the overall performance that the anti-interference ability in signals transmission will improve argon arc welding machine.One kind is designed thus
It is very necessary applied to the anti-jamming circuit in argon arc welding machine.
Summary of the invention
The purpose of this utility model is to provide a kind of anti-jamming circuits applied in argon arc welding machine, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides the following technical solutions:
A kind of anti-jamming circuit applied in argon arc welding machine, including single-chip microcontroller U1, single-chip microcontroller U1 output signal STB or
CLK is connected with comparator U1A reverse side, and one end of capacitor C1 is connected with comparator U1A reverse side, the connection of the capacitor C1 other end
Ground, the one end resistance R1 connect 5V voltage, and the resistance R1 other end connects comparator U1A in-phase end, the one end resistance R2 connection connection ratio
Compared with device U3A in-phase end, resistance R2 other end connection ground, the one end resistance R3, the one end resistance R4 are connected with comparator U3A output end,
Resistance R3 other end connection ground, the resistance R4 other end are connected with the base stage of the base stage of transistor Q1 and transistor Q2, transistor Q1
Collector connects power supply VCC；Transistor Q1 emitter connects transistor Q2 emitter, transistor Q2 collector connection ground, crystal
Pipe Q1 emitter, transistor Q2 emitter connect the one end resistance R5, one end connection comparator of the resistance R5 other end, capacitor C3
U1B reverse side, capacitor C3 other end connection ground, one end of resistance R6 connect 15V voltage, the other end of resistance R6, resistance R8
One end, resistance R9 one end connection comparator U1B in-phase end, the other end of resistance R8 connects ground, the other end, the electricity of resistance R9
The output end of one end of R7, one end connection comparator U1B of resistance R10 is hindered, the other end of resistance R7 connects 15V voltage, resistance
The other end of R10, one end of resistance R11 connect the pin STB or CLK of digital pipe driving chip U2.
Further technical solution as the utility model: the model MB95F698K of the single-chip microcontroller U1.
Further technical solution as the utility model: the model TM1629B of the driving chip U2.
Further technical solution as the utility model: the model of the comparator U1B and comparator U1B is
LM393。
Further technical solution as the utility model: the transistor Q1 is NPN type triode, and transistor Q2 is
PNP type triode.
Compared with prior art, the utility model has the beneficial effects that the utility model improves signal transmission level,
Noise margin greatly increases, and efficiently solves the electromagnetic interference problem in signals transmission, keeps argon arc welding machine dry in strong electromagnetic
Disturb under environment also can reliably working, numeral method is stablized, without scintillation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, a kind of anti-jamming circuit applied in argon arc welding machine, including single-chip microcontroller U1, single-chip microcontroller U1 output
Signal STB or CLK is connected with comparator U1A reverse side, wherein output signal STB or CLK are chip selection signal, this signal passes through
For meeting the control of driving chip U2 after late-class circuit processing.
As described in Figure 1, one end of capacitor C1 is connected with comparator U1A reverse side in figure, capacitor C1 other end connection ground, electricity
It hinders the one end R1 and connects 5V voltage, the resistance R1 other end connects comparator U1A in-phase end, the one end resistance R2 connection connection comparator
U3A in-phase end, resistance R2 other end connection ground, the one end resistance R3, the one end resistance R4 are connected with comparator U3A output end, resistance
R3 other end connection ground, the resistance R4 other end are connected with the base stage of the base stage of transistor Q1 and transistor Q2, transistor Q1 current collection
Pole connects power supply VCC；Transistor Q1 emitter connects transistor Q2 emitter, transistor Q2 collector connection ground, transistor Q1
Emitter, transistor Q2 emitter connect the one end resistance R5, and the resistance R5 other end, one end connection comparator U1B of capacitor C3 are anti-
Xiang Duan, capacitor C3 other end connection ground, one end of resistance R6 connect 15V voltage, the other end of resistance R6, resistance R8 one end,
The in-phase end of one end connection comparator U1B of resistance R9, the other end of resistance R8 connect ground, the other end, the resistance R7 of resistance R9
One end, resistance R10 one end connection comparator U1B output end, the other end of resistance R7 connects 15V voltage, resistance R10's
The other end, resistance R11 one end connect the pin STB or CLK of digital pipe driving chip U2.The 5V level letter of single-chip microcontroller U1 output
Number compared with 2.5V reference voltage, the output of comparator exports 15V level signal through push-pull output stage again；Push-pull cascade output signal
Through threshold compataror relatively after, then row divide level 5V chip selection signal STB, clock signal clk, digital pipe driving chip U2
Movement for drive digital tube.
The utility model improves control signal transmission level, and transmission signal noise tolerance greatly increases, to greatly enhance
The ability of electromagnetism interference etc. in signals transmission.Control signal lifting level is transferred near receiver, then row reduces
Signal level is controlled to realize signal compatibility.The transmission range of low level control signal is shortened, realizes control signal not by dry
It disturbs.
Embodiment 2, on the basis of embodiment 1, the model MB95F698K of the single-chip microcontroller U1 of the design, this chip is
Not only small in size, integrated level is high, and cheap, uses suitable for the argon arc welding machine of the design.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of anti-jamming circuit applied in argon arc welding machine, including single-chip microcontroller U1, it is characterised in that: single-chip microcontroller U1 output letter
Number STB or CLK is connected with comparator U1A reverse side, and one end of capacitor C1 is connected with comparator U1A reverse side, and capacitor C1 is another
End connection ground, the one end resistance R1 connect 5V voltage, and the resistance R1 other end connects comparator U1A in-phase end, the connection of the one end resistance R2
Connect comparator U3A in-phase end, resistance R2 other end connection ground, the one end resistance R3, the one end resistance R4 and comparator U3A output end
It is connected, resistance R3 other end connection ground, the resistance R4 other end is connected with the base stage of the base stage of transistor Q1 and transistor Q2, crystal
Pipe Q1 collector connects power supply VCC；
Transistor Q1 emitter connects transistor Q2 emitter, transistor Q2 collector connection ground, transistor Q1 emitter, crystal
Pipe Q2 emitter connects the one end resistance R5, one end connection comparator U1B reverse side of the resistance R5 other end, capacitor C3, capacitor C3
Other end connection ground, one end of resistance R6 connect 15V voltage, the other end of resistance R6, one end of resistance R8, resistance R9 one end
The in-phase end of comparator U1B is connected, the other end of resistance R8 connects ground, the other end of resistance R9, one end of resistance R7, resistance
The output end of one end connection comparator U1B of R10, the other end of resistance R7 connect 15V voltage, the other end, the resistance of resistance R10
One end of R11 connects the pin STB or CLK of digital pipe driving chip U2.
2. a kind of anti-jamming circuit applied in argon arc welding machine according to claim 1, which is characterized in that the monolithic
The model MB95F698K of machine U1.
3. a kind of anti-jamming circuit applied in argon arc welding machine according to claim 1, which is characterized in that the driving
The model TM1629B of chip U2.
4. a kind of anti-jamming circuit applied in argon arc welding machine according to claim 1, which is characterized in that the comparison
The model of device U1B and comparator U1B are LM393.
5. a kind of anti-jamming circuit applied in argon arc welding machine according to claim 1 to 4, which is characterized in that institute
Stating transistor Q1 is NPN type triode, and transistor Q2 is PNP type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822067195.8U CN209175095U (en) | 2018-12-11 | 2018-12-11 | A kind of anti-jamming circuit applied in argon arc welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822067195.8U CN209175095U (en) | 2018-12-11 | 2018-12-11 | A kind of anti-jamming circuit applied in argon arc welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209175095U true CN209175095U (en) | 2019-07-30 |
Family
ID=67376288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822067195.8U Active CN209175095U (en) | 2018-12-11 | 2018-12-11 | A kind of anti-jamming circuit applied in argon arc welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209175095U (en) |
-
2018
- 2018-12-11 CN CN201822067195.8U patent/CN209175095U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103425235A (en) | Single chip microcomputer low power consumption standby circuit and control method | |
| CN201937530U (en) | Anti-reverse-rotation circuit of speed regulation feedback control of direct-current motor | |
| CN204375154U (en) | A kind of infrared transmitting circuit | |
| CN209175095U (en) | A kind of anti-jamming circuit applied in argon arc welding machine | |
| CN204556715U (en) | A kind of zero cross detection circuit and convertible frequency air-conditioner | |
| CN202806629U (en) | High-side driving circuit | |
| CN205610628U (en) | A signal transceiver circuits for flight controller | |
| CN204631669U (en) | A kind of rate signal modulate circuit | |
| CN205356122U (en) | Power and output voltage changes control circuit thereof | |
| CN203661026U (en) | Light-operated touch circuit | |
| CN202488417U (en) | Anti-jamming protection circuit | |
| CN201226570Y (en) | Chip power supply and electronic device with the same | |
| CN201839283U (en) | Direct-current carrier communication circuit | |
| CN204755347U (en) | Integrated brushless fan -driving ware of single coil direct current that joins conversely protection | |
| CN104917385B (en) | A kind of noise reduction type isolation type high frequency square wave DC D/C powers | |
| CN205563542U (en) | Utilize ordinary IO mouth of singlechip to produce strong difference data signal's circuit | |
| CN205283515U (en) | Adaptive pairs circuit | |
| CN209167869U (en) | Cabinet driving device is opened in a kind of telecommunication for electric business logistics drop-off box | |
| CN217656628U (en) | Circuit for improving optical coupler communication rate at low cost | |
| CN203720775U (en) | Electronic equipment power-on and power-off control device and electronic equipment | |
| CN108268062A (en) | A kind of toilet exhaust fan control system | |
| CN218335729U (en) | Power supply circuit with low power consumption standby | |
| CN206041402U (en) | Take network transmission's digital power amplifier | |
| CN201478998U (en) | Power-supply driving device | |
| CN203261314U (en) | Modulator circuit based on NAND gate integrated circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |