CN203124917U - Parallel connection output multifunctional welding power supply - Google Patents
Parallel connection output multifunctional welding power supply Download PDFInfo
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- CN203124917U CN203124917U CN 201320088700 CN201320088700U CN203124917U CN 203124917 U CN203124917 U CN 203124917U CN 201320088700 CN201320088700 CN 201320088700 CN 201320088700 U CN201320088700 U CN 201320088700U CN 203124917 U CN203124917 U CN 203124917U
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Abstract
The utility model discloses a parallel connection output multifunctional welding power supply which comprises a controller, a first power circuit, a second power circuit and a display and keyboard processing circuit; the first power circuit, the second power circuit and the display and keyboard processing circuit are respectively connected with the controller; voltage and current signals of the first power circuit and the second power circuit are fed back to the controller through the first power circuit and the second power circuit; and the controller drives the first power circuit and the second power circuit to independently work or work in a parallel connection mode according to control commands input by the display and keyboard processing circuit. The parallel connection output multifunctional welding power supply has the advantages of being simple in structure, being capable of intelligently controlling the two power circuits through a DSP (Digital Signal Processing) controller, being small in size, high in accuracy and rapid in response speed and being capable of serving as two small power welding power supplies due to the fact that the two power circuits are capable of independently working and capable of serving as a large power welding power supply due to the fact that the two power circuits can be connected together in a parallel mode.
Description
Technical field
The utility model relates to source of welding current technology, specifically is a kind of multi-functional source of welding current of output in parallel.
Background technology
In existing source of welding current technology, digitlization, multi-functional and building block system power designs have become the common technology of source of welding current design.Usually existing digital welding power source all is designed to the multi-functional source of welding current, the high power welding power supply all is rendered as two-shipper parallel connection or power device parallel connection, realize multifunction and the high-power of the source of welding current by these two kinds of technology, satisfied the demand in the complex industrial applications of the source of welding current.
Yet, existing source of welding current Technology Need adopts different control devices to control different power devices respectively, be dissimilar such as the control processing apparatus with driving given device, thereby the two-shipper all kinds of devices that need 2 times of quantity in parallel, the structure more complicated, volume is big, the cost height, low precision, the power-balance of two-shipper parallel connection is poor.
Summary of the invention
The purpose of this utility model provides a kind of multi-functional source of welding current of output in parallel, is intended to solve the poor technical problem of complex structure, volume power-balance big, that cost is high, two-shipper is in parallel of existing source of welding current technology.
The utility model adopts following technical scheme to solve above-mentioned technical problem: the multi-functional source of welding current of this parallel connection output, comprise controller, and first power circuit that is connected with controller respectively, second power circuit and demonstration and keyboard treatment circuit; Described first power circuit and second power circuit feed back to controller with its voltage and current signal, and controller drives first power circuit according to the control instruction that shows and the keyboard treatment circuit is imported and second power circuit works alone or parallel operation.
Preferably, described controller is dsp controller; Dsp controller comprises dsp chip, and the PWM drive circuit that is connected with dsp chip respectively, serial communication circuit, feedback voltage and current processing circuit; Described PWM drive circuit is connected with first power circuit, second power circuit respectively; Described feedback voltage and current processing circuit comprise two cover voltage and current feedback circuits, and two cover voltages and current feedback circuit are connected respectively to first power circuit, second power circuit; Dsp chip also is connected with demonstration and keyboard treatment circuit.
Described first power circuit, second power circuit include three phase rectifier and filter circuit, full bridge PWM inverter circuit, high frequency transformer, secondary rectification and the outputting inductance circuit that connects successively; Described full bridge PWM inverter circuit is connected with the PWM drive circuit; Described secondary rectification and outputting inductance circuit are connected with feedback voltage and current processing circuit.
Compared with prior art, the beneficial effects of the utility model are:
1, simple in structure, adopt cover digital control system (being a dsp controller) Based Intelligent Control two cover power circuits, the two-shipper Parallel Control is handled, is driven functions such as given and signal feedback processing and all concentrates on the dsp controller, circuit is simple, cost is low, volume is little, the precision height, and response speed is fast.
2, utilize two power circuits of dsp controller control, save the control system cost, bipolar control is given carries out two-shipper power-balance uniformity height after relatively based on the unit current feedback.
3, the source of welding current has obtained maximum utilization, provide cost savings: can be by showing and the keyboard treatment circuit, it is that two power circuits are worked respectively that the multi-functional source of welding current is set, and is presented as the source of welding current of two low power manual weldings, gas guarantor weldering or submerged-arc welding; Also can be arranged to two power circuit parallel operations, be presented as the source of welding current of a powerful submerged-arc welding, manual welding or gas guarantor weldering, can satisfy the high power welding application of power.
4, realized that two power circuits can be presented as that the source of welding current of two difference in functionalitys works simultaneously, fundamentally increased the function of the source of welding current, using for engineering provides new selection and facility.
Description of drawings
Fig. 1 is system architecture diagram of the present utility model;
Fig. 2 is the structured flowchart of power circuit;
Fig. 3 is DSP control system structured flowchart.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment
As shown in Figure 1, the multi-functional source of welding current of the utility model output in parallel comprises two power circuits, dsp controller, demonstration and keyboard treatment circuit; Wherein two power circuits are respectively first power circuit and second power circuit, both parameter unanimities.Dsp controller is connected with first power circuit, second power circuit, demonstration and keyboard treatment circuit respectively.
Above-mentioned two power circuits are controlled by same dsp controller, and two power circuits can work independently.As shown in Figure 2, each power circuit comprises three phase rectifier and filter circuit, full bridge PWM inverter circuit, high frequency transformer, secondary rectification and the outputting inductance circuit that connects successively.Full bridge PWM inverter circuit, secondary rectification and outputting inductance circuit are connected with dsp controller respectively.
As shown in Figure 3, dsp controller comprises the DSP core circuit, and the PWM drive circuit that is connected with the DSP core circuit respectively, serial communication circuit, feedback voltage and current processing circuit.The full bridge PWM inverter circuit of power circuit connects the PWM drive circuit, and secondary rectification and outputting inductance circuit connect feedback voltage and current processing circuit, shows and keyboard treatment circuit connection DSP core circuit.
Described DSP core circuit is made up of dsp chip and peripheral circuit thereof; Described PWM drive circuit is made up of two PWM full bridge driving circuits, connects the full bridge PWM inverter circuit of two power circuits respectively; Described serial communication circuit can be selected RS485 communication interface or CAN communication interface for use, is used for being connected with wire feeder or other automation welders; Described feedback voltage and current processing circuit are made up of two cover voltages and current feedback circuit, are connected respectively to secondary rectification and the outputting inductance circuit of two power circuits.
Demonstration and keyboard treatment circuit comprise for the digital display unit, status indicator lamp and the keyboard that show voltage and electric current.Digital display unit, status indicator lamp and keyboard are connected with the dsp chip of dsp controller respectively.Give dsp chip by the keyboard input control order, dsp chip drives first power circuit according to control instruction and second power circuit works alone or parallel operation.In the present embodiment, dsp controller is by the detection of push button signalling or switching signal, judgement is unit work or two-shipper work: if the program of unit work is just called in unit work, and can carry out the selection of unit 1 merchandiser machine 2 by push button signalling; When selecting unit 1, can control that given signal is opened the main circuit of unit 1 and the main circuit of not opening unit 2 by DSP, thereby realize unit work, then opposite when selecting unit 2; If the program of two-shipper work is just called in two-shipper work, just open the main circuit of unit 1 and unit 2 simultaneously, realize electric current output size by electric current given (push button signalling) control, the control of electric current output size compares with total output current feedback then by unit 1 current feedback and unit 2 current feedback sums and realizes.
Above-described embodiment is the utility model preferred implementation; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (5)
1. the multi-functional source of welding current of an output in parallel is characterized in that, comprises controller, and first power circuit that is connected with controller respectively, second power circuit and demonstration and keyboard treatment circuit; Described first power circuit and second power circuit feed back to controller with its voltage and current signal, and controller drives first power circuit according to the control instruction that shows and the keyboard treatment circuit is imported and second power circuit works alone or parallel operation.
2. the multi-functional source of welding current of output in parallel according to claim 1 is characterized in that described controller is dsp controller; Dsp controller comprises dsp chip, and the PWM drive circuit that is connected with dsp chip respectively, serial communication circuit, feedback voltage and current processing circuit; Described PWM drive circuit is connected with first power circuit, second power circuit respectively; Described feedback voltage and current processing circuit comprise two cover voltage and current feedback circuits, and two cover voltages and current feedback circuit are connected respectively to first power circuit, second power circuit; Dsp chip also is connected with demonstration and keyboard treatment circuit.
3. the multi-functional source of welding current of output in parallel according to claim 2, it is characterized in that described first power circuit, second power circuit include three phase rectifier and filter circuit, full bridge PWM inverter circuit, high frequency transformer, secondary rectification and the outputting inductance circuit that connects successively; Described full bridge PWM inverter circuit is connected with the PWM drive circuit; Described secondary rectification and outputting inductance circuit are connected with feedback voltage and current processing circuit.
4. the multi-functional source of welding current of output in parallel according to claim 2 is characterized in that described serial communication circuit is RS485 communication interface or CAN communication interface.
5. the multi-functional source of welding current of output in parallel according to claim 1, it is characterized in that, described demonstration and keyboard treatment circuit comprise that digital display unit, status indicator lamp and keyboard are connected with dsp controller respectively for the digital display unit, status indicator lamp and the keyboard that show voltage and electric current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320088700 CN203124917U (en) | 2013-02-26 | 2013-02-26 | Parallel connection output multifunctional welding power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320088700 CN203124917U (en) | 2013-02-26 | 2013-02-26 | Parallel connection output multifunctional welding power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203124917U true CN203124917U (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320088700 Withdrawn - After Issue CN203124917U (en) | 2013-02-26 | 2013-02-26 | Parallel connection output multifunctional welding power supply |
Country Status (1)
| Country | Link |
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| CN (1) | CN203124917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128426A (en) * | 2013-02-26 | 2013-06-05 | 广州友田机电设备有限公司 | Multifunctional welding power source with parallel output function |
-
2013
- 2013-02-26 CN CN 201320088700 patent/CN203124917U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128426A (en) * | 2013-02-26 | 2013-06-05 | 广州友田机电设备有限公司 | Multifunctional welding power source with parallel output function |
| CN103128426B (en) * | 2013-02-26 | 2015-05-13 | 广州友田机电设备有限公司 | Multifunctional welding power source with parallel output function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130814 Effective date of abandoning: 20150513 |
|
| RGAV | Abandon patent right to avoid regrant |