CN202721612U - Intelligent frequency-conversion variable-voltage test power supply - Google Patents
Intelligent frequency-conversion variable-voltage test power supply Download PDFInfo
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- CN202721612U CN202721612U CN 201220407207 CN201220407207U CN202721612U CN 202721612 U CN202721612 U CN 202721612U CN 201220407207 CN201220407207 CN 201220407207 CN 201220407207 U CN201220407207 U CN 201220407207U CN 202721612 U CN202721612 U CN 202721612U
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Abstract
An intelligent frequency-conversion variable-voltage test power supply is disclosed. A circuit structure comprises a three-phase input circuit, a filter circuit, a rectification circuit, an inversion circuit, an isolation transformation circuit and an alternating current output circuit. The power supply is characterized in that a single-chip-microcomputer intelligent acquisition control circuit with a special memory cell and a SPWM control circuit are additionally arranged in the circuit structure; the single-chip-microcomputer intelligent acquisition control circuit outputs a control signal to the SPWM control circuit; an output terminal of the SPWM control circuit is connected with the inversion circuit. The power supply of the utility model has the following advantages that people can control a whole experiment process only through being in a monitoring room, operating and monitoring a computer; safety is greatly increased and a manpower resource is reduced.
Description
Technical field
The utility model belongs to the power supply test technical field, is mainly used in the laboratory, aging chambers etc. need to be to power supply frequency conversion, transformation, fixed frequency, level pressure, regularly, reach the test of switch.
Background technology
In a lot of laboratories, as: the motor test is aging, and whole electronic system testing of equipment is aging, and aging grade of high-power transformer test all be unable to do without variable-frequency variable-voltage power supply.Variable frequency power supply on the market mostly is greatly power source special now, adjustable extent is narrow, complicated operation when carrying out above-mentioned test, fully need to be by manually processing, for example artificial first according to certain output voltage, output frequency to testing equipment, after manual time-keeping a period of time, change again output voltage, output frequency, so then delay many human costs, also wasted the operating time, and then affected operating efficiency.
Summary of the invention
The purpose of this utility model is exactly in order to improve the technical task of test job efficient by the science and technology that improves testing power supply, to have designed a kind of intelligentized testing power supply, can realizing frequency modulation, pressure regulation by self-timing.
The technical solution adopted in the utility model is, intelligent variable-frequency transformation testing power supply, comprise three-phase input circuit, filter circuit, rectification circuit, inverter circuit, isolation transforming circuit in the circuit structure and exchange output circuit, key is: set up Intelligent Single-Chip Based acquisition control circuit and SPWM control circuit with mailbox memory in circuit structure, the Intelligent Single-Chip Based acquisition control circuit outputs control signals to the SPWM control circuit, and the output of SPWM control circuit is connected with inverter circuit.
Also be provided with the keyboard-coding input circuit in the described circuit structure, the keyboard-coding input circuit is connected with the input of Intelligent Single-Chip Based acquisition control circuit.
Also be provided with display output circuit in the described circuit structure, the collection of Intelligent Single-Chip Based acquisition control circuit exchanges the output signal of output circuit, is connected with display output circuit by output bus after processing.
Also be provided with the data interface circuit that is connected with host computer in the described Intelligent Single-Chip Based acquisition control circuit.
Described inverter circuit is full bridge inverter.
The utility model during for electric equipment or system test, provides different power supply environment being that original variable frequency power supply basis increases Embedded computer system, and the parameters such as supply power voltage current power of real time record equipment under test.Adopt the very color LCD of the touch man-machine interactive platform of large-screen, reach intelligent effect, user-programmable is set the operating voltage frequency curve, can store at most 100 user's formulas; Now had a surplus in 2 years in the operation of Jiaxiang, Shijiazhuang laboratory of precision optical machinery company after the improvement, product expression is good, and is reliable, and indices all produces a desired effect.
Description of drawings
Fig. 1 is schematic block circuit diagram of the present utility model.
In the accompanying drawing, 1 represents the three-phase input circuit, and 2 represent filter circuit, and 3 represent rectification circuit, 4 represent inverter circuit, 5 representative isolation transforming circuits, 6 representatives exchange output circuit, and 7 represent the Intelligent Single-Chip Based acquisition control circuit, 7-1 representative data interface circuit, 8 represent the SPWM control circuit, and 9 represent display output circuit, and 10 represent case coding input circuit.
Embodiment
Intelligent variable-frequency transformation testing power supply, comprise three-phase input circuit 1, filter circuit 2, rectification circuit 3, inverter circuit 4, isolation transforming circuit 5 in the circuit structure and exchange output circuit 6, key is: set up Intelligent Single-Chip Based acquisition control circuit 7 and SPWM control circuit 8 with mailbox memory in circuit structure, Intelligent Single-Chip Based acquisition control circuit 7 outputs control signals to SPWM control circuit 8, and the output of SPWM control circuit 8 is connected with inverter circuit 4.
Also be provided with keyboard-coding input circuit 10 in the described circuit structure, keyboard-coding input circuit 10 is connected with the input of Intelligent Single-Chip Based acquisition control circuit 7.
Also be provided with display output circuit 9 in the described circuit structure, Intelligent Single-Chip Based acquisition control circuit 7 gathers the output signal that exchanges output circuit 6, is connected with display output circuit 9 by output bus after processing.Display output circuit 9 can show current output value, voltage output value, frequency output valve.
Also be provided with the data interface circuit 7-1 that is connected with host computer in the described Intelligent Single-Chip Based acquisition control circuit 7.Can be connected with remote computer, realize background monitoring, also can connect printer and print backup.
Described inverter circuit 4 is full bridge inverters.
Operation principle of the present utility model is: according to different test environments, set different voltage, frequency output parameter, realize timing function by the timing parameters in the mailbox memory of Intelligent Single-Chip Based acquisition control circuit 7 inside, adjust voltage, frequency values by SPWM control circuit 8, can realize full automatic intelligent test process.
The utility model combines variable frequency power supply technology and intelligence computation machine technology, people manage the control variable-frequency variable-voltage power supply by the control computer and constantly export the high power AC electricity of different voltage different frequencies in difference, to reach power supply state and the environment that changes equipment under test.People only need namely can to control whole experimentation at Control Room operation supervise and control computer and carry out.Greatly increase fail safe, and reduced human resources.
Claims (5)
1. intelligent variable-frequency transformation testing power supply, comprise three-phase input circuit (1) in the circuit structure, filter circuit (2), rectification circuit (3), inverter circuit (4), isolation transforming circuit (5), and interchange output circuit (6), it is characterized in that: in circuit structure, set up Intelligent Single-Chip Based acquisition control circuit (7) and SPWM control circuit (8) with mailbox memory, Intelligent Single-Chip Based acquisition control circuit (7) outputs control signals to SPWM control circuit (8), and the output of SPWM control circuit (8) is connected with inverter circuit (4).
2. intelligent variable-frequency transformation testing power supply according to claim 1, it is characterized in that: also be provided with keyboard-coding input circuit (10) in the described circuit structure, keyboard-coding input circuit (10) is connected with the input of Intelligent Single-Chip Based acquisition control circuit (7).
3. intelligent variable-frequency transformation testing power supply according to claim 1, it is characterized in that: also be provided with display output circuit (9) in the described circuit structure, Intelligent Single-Chip Based acquisition control circuit (7) collection exchanges the output signal of output circuit (6), is connected with display output circuit (9) by output bus after processing.
4. intelligent variable-frequency transformation testing power supply according to claim 1 is characterized in that: also be provided with the data interface circuit (7-1) that is connected with host computer in the described Intelligent Single-Chip Based acquisition control circuit (7).
5. intelligent variable-frequency transformation testing power supply according to claim 1, it is characterized in that: described inverter circuit (4) is full bridge inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220407207 CN202721612U (en) | 2012-08-16 | 2012-08-16 | Intelligent frequency-conversion variable-voltage test power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220407207 CN202721612U (en) | 2012-08-16 | 2012-08-16 | Intelligent frequency-conversion variable-voltage test power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202721612U true CN202721612U (en) | 2013-02-06 |
Family
ID=47623415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220407207 Expired - Lifetime CN202721612U (en) | 2012-08-16 | 2012-08-16 | Intelligent frequency-conversion variable-voltage test power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202721612U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104378167A (en) * | 2013-08-14 | 2015-02-25 | 中兴通讯股份有限公司 | Testing method and system |
| CN105182220A (en) * | 2015-09-15 | 2015-12-23 | 安徽佑赛科技有限公司 | Three phase full bridge inverter power circuit test system and method |
| CN106052052A (en) * | 2016-08-11 | 2016-10-26 | 合肥通用电源设备有限公司 | Air conditioning unit power supply conversion system based on single chip microcomputer |
| CN107132386A (en) * | 2016-02-29 | 2017-09-05 | 上海港蓝环保科技有限公司 | A kind of digital automation variable-frequency variable-voltage test system |
-
2012
- 2012-08-16 CN CN 201220407207 patent/CN202721612U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104378167A (en) * | 2013-08-14 | 2015-02-25 | 中兴通讯股份有限公司 | Testing method and system |
| CN105182220A (en) * | 2015-09-15 | 2015-12-23 | 安徽佑赛科技有限公司 | Three phase full bridge inverter power circuit test system and method |
| CN107132386A (en) * | 2016-02-29 | 2017-09-05 | 上海港蓝环保科技有限公司 | A kind of digital automation variable-frequency variable-voltage test system |
| CN106052052A (en) * | 2016-08-11 | 2016-10-26 | 合肥通用电源设备有限公司 | Air conditioning unit power supply conversion system based on single chip microcomputer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130206 |
|
| CX01 | Expiry of patent term |