CN202028858U - Electric welder control circuit - Google Patents
Electric welder control circuit Download PDFInfo
- Publication number
- CN202028858U CN202028858U CN2011201138330U CN201120113833U CN202028858U CN 202028858 U CN202028858 U CN 202028858U CN 2011201138330 U CN2011201138330 U CN 2011201138330U CN 201120113833 U CN201120113833 U CN 201120113833U CN 202028858 U CN202028858 U CN 202028858U
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- control circuit
- circuit
- output
- detection signal
- master chip
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Abstract
The utility model belongs to the technical field of electric welders, and relates to an electric welder control circuit. An input rectifier circuit is sequentially electrically connected with an inverter circuit and an output rectifier circuit; the control circuit is respectively electrically connected with the input rectifier circuit and a driving circuit; and an output signal is led out of an output end OUT of a main chip of the control circuit to serve as a detection signal fed back to a detection signal input end of the main chip, so that output signals at the output end OUT of the control circuit are controlled. The electric welder control circuit has the advantages that the feedback signal is led out of the output end OUT of the main chip of the control circuit for control, the feedback control signal is accurate, control is precise, production cost is low, and the electric welder control circuit is suitable for application in various specifications of electric welder circuits.
Description
Technical field
The utility model belongs to the electric welding machine technical field, refers in particular to a kind of electric welding machine control circuit.
Background technology
At present, feedback signal in the existing electric welding machine control circuit all is that the output from output rectification circuit invites signal to control for the master chip of control circuit through optocoupler transmission signal feedback, its weak point is: during optocoupler transmission signal because the strong and weak electricity isolation distance must reach the safe distance of optocoupler just can reach mutually and do not disturb, but the strong and weak electricity isolation distance of the optocoupler in the existing electric welding machine control circuit does not reach theoretical requirement, sometimes there is high pressure to disturb in addition, optocoupler is fragile, can not get the effective feedback signal, and then cause controlling malfunctioning, electric welding machine and burn out.
Summary of the invention
The control signal that the purpose of this utility model provides a kind of feedback is the electric welding machine control circuit accurately.
The purpose of this utility model is achieved in that
A kind of electric welding machine control circuit, input rectification circuit is electrically connected with inverter circuit and output rectification circuit successively, control circuit is electrically connected with input rectification circuit and drive circuit respectively, draws an output signal feeds back to master chip as detection signal detection signal input from the OUT output of the master chip of control circuit and controls with the output signal to the OUT output of control circuit.
Be electrically connected with the EMI interfered circuit on the above-mentioned input rectification circuit.
The OUT output of above-mentioned master chip from control circuit is drawn an output signal and as the detection signal input that detection signal feeds back to master chip is: draw a detection signal feeds back to master chip after relatively through comparator detection signal input from the OUT output of master chip.
The utility model gives prominence to compared to existing technology and beneficial technical effects is:
1, the utility model is drawn an output signal feeds back to master chip as detection signal detection signal input from the OUT output of the master chip of control circuit and is controlled with the output signal to the OUT output of control circuit, because the control signal of feedback is accurate, thereby accurate to the control of electric welding machine, guaranteed that electric welding machine fault rate in use is little.
2, circuit design of the present utility model is reasonable, realizes that easily production cost is low, and control accurately suits to use in the electric welding machine circuit of all size.
Description of drawings
Fig. 1 is a functional-block diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
The specific embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1-2:
A kind of electric welding machine control circuit, input rectification circuit 10 is electrically connected with inverter circuit 11 and output rectification circuit 12 successively, control circuit 13 is electrically connected with input rectification circuit 10 and drive circuit 14 respectively, draw an output signal feeds back to master chip 131 as detection signal detection signal input 1 from the OUT output 6 of the master chip 131 of control circuit 13 and control, form signal feedback circuit 15 with output signal to the OUT output 6 of control circuit 13.
Be electrically connected with EMI interfered circuit 16 on the above-mentioned input rectification circuit 10.
The OUT output 6 of above-mentioned master chip 131 from control circuit 13 is drawn an output signal and as the detection signal input 1 that detection signal feeds back to master chip 131 is: draw a detection signal feeds back to master chip 131 after relatively through comparator detection signal input 1 from the OUT output 6 of master chip 131.
The foregoing description is preferred embodiment of the present utility model only, is not to limit protection domain of the present utility model according to this, so: all equivalences of doing according to structure of the present utility model, shape, principle change, and all should be covered by within the protection domain of the present utility model.
Claims (3)
1. electric welding machine control circuit, it is characterized in that: input rectification circuit is electrically connected with inverter circuit and output rectification circuit successively, control circuit is electrically connected with input rectification circuit and drive circuit respectively, draws an output signal feeds back to master chip as detection signal detection signal input from the OUT output of the master chip of control circuit and controls with the output signal to the OUT output of control circuit.
2. a kind of electric welding machine control circuit according to claim 1 is characterized in that: be electrically connected with the EMI interfered circuit on the described input rectification circuit.
3. a kind of electric welding machine control circuit according to claim 1 is characterized in that: the OUT output of described master chip from control circuit is drawn an output signal and as the detection signal input that detection signal feeds back to master chip is: draw a detection signal feeds back to master chip after relatively through comparator detection signal input from the OUT output of master chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201138330U CN202028858U (en) | 2011-04-18 | 2011-04-18 | Electric welder control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201138330U CN202028858U (en) | 2011-04-18 | 2011-04-18 | Electric welder control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202028858U true CN202028858U (en) | 2011-11-09 |
Family
ID=44891170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201138330U Expired - Fee Related CN202028858U (en) | 2011-04-18 | 2011-04-18 | Electric welder control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202028858U (en) |
-
2011
- 2011-04-18 CN CN2011201138330U patent/CN202028858U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20130418 |