CN202153709U - Frequency converter - Google Patents
Frequency converter Download PDFInfo
- Publication number
- CN202153709U CN202153709U CN2011202739382U CN201120273938U CN202153709U CN 202153709 U CN202153709 U CN 202153709U CN 2011202739382 U CN2011202739382 U CN 2011202739382U CN 201120273938 U CN201120273938 U CN 201120273938U CN 202153709 U CN202153709 U CN 202153709U
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- China
- Prior art keywords
- circuit
- input
- microprocessor
- output
- power supply
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a frequency converter, which comprises a casing, wherein a control circuit board, a power panel and a control circuit are arranged in the casing, the control circuit is arranged on the control circuit board and the power panel, the control circuit comprises a microprocessor, an input-output circuit, an inverter circuit, a current protection circuit, and a button and LED display, the power panel is provided with a power input circuit, a rectifying and filtering circuit and a switching stabilized voltage power supply, the output end of the power input circuit is connected with the input end of the rectifying and filtering circuit, the output end of the rectifying and filtering circuit is connected with the input ends of the switching stabilized voltage power supply and inverter circuit, the output end of the switching stabilized voltage power supply is connected with the input end of the microprocessor, the output end of the microprocessor is connected with the input end of the inverter circuit, the output end of the current protection circuit is connected with the input end of the microprocessor, and the input-output circuit and the button and LED display is connected with the microprocessor. The frequency converter is low in cost, high in anti-interference capability, and relatively good in control performance.
Description
Technical field
The utility model relates to a kind of electric equipment, particularly a kind of frequency converter.
Background technology
To be the on-off action that utilizes power semiconductor device be transformed to the Power Controller of another frequency with power frequency supply with frequency converter, is widely used in every field.But existing frequency converter cost is higher, poor anti jamming capability, and control performance is relatively poor.
Summary of the invention
The purpose of the utility model just is to provide a kind of cost low, and antijamming capability is strong, and control performance is frequency converter preferably.
To achieve these goals; The technical scheme that the utility model adopts is such: the frequency converter of the utility model; Comprise housing, control circuit board, power panel and control circuit are set in housing, control circuit is arranged on control circuit board and the power panel; Said control circuit comprises that microprocessor, imput output circuit, inverter circuit, current protecting circuit and button and LED show; Said power panel is provided with power supply input circuit, current rectifying and wave filtering circuit and switching power supply, and the output of power supply input circuit connects the input of current rectifying and wave filtering circuit, and the output of current rectifying and wave filtering circuit connects switching power supply and inverter circuit input; The output of switching power supply connects the input of microprocessor; The output of microprocessor connects the input of inverter circuit, and the output of said current protecting circuit connects the input of microprocessor, and said imput output circuit links to each other with microprocessor with button and LED demonstration.
As preferably, the input of said current rectifying and wave filtering circuit and current protecting circuit is connected a SPM.
Compared with prior art, the advantage of the utility model is: simple in structure, cost is lower, has improved cost performance, and antijamming capability is strong, adopts microprocessor, improves arithmetic speed, and superior control performance is provided.
Description of drawings
Fig. 1 is the functional block diagram of the utility model.
Embodiment
To combine accompanying drawing that the utility model is described further below.
Referring to Fig. 1; The frequency converter of the utility model comprises housing, and control circuit board, power panel and control circuit are set in housing; Control circuit is arranged on control circuit board and the power panel; Said control circuit comprises that microprocessor, imput output circuit, inverter circuit, current protecting circuit and button and LED show that said power panel is provided with power supply input circuit, current rectifying and wave filtering circuit and switching power supply, and the output of power supply input circuit connects the input of current rectifying and wave filtering circuit; The output of current rectifying and wave filtering circuit connects switching power supply and inverter circuit input; The output of switching power supply connects the input of microprocessor, and the output of microprocessor connects the input of inverter circuit, and the output of said current protecting circuit connects the input of microprocessor; Said imput output circuit links to each other with microprocessor with button and LED demonstration, and the input of said current rectifying and wave filtering circuit and current protecting circuit is connected a SPM.
Claims (2)
1. frequency converter; Comprise housing; Control circuit board, power panel and control circuit are set in housing; Control circuit is arranged on control circuit board and the power panel, it is characterized in that: said control circuit comprises that microprocessor, imput output circuit, inverter circuit, current protecting circuit and button and LED show that said power panel is provided with power supply input circuit, current rectifying and wave filtering circuit and switching power supply; The output of power supply input circuit connects the input of current rectifying and wave filtering circuit; The output of current rectifying and wave filtering circuit connects switching power supply and inverter circuit input, and the output of switching power supply connects the input of microprocessor, and the output of microprocessor connects the input of inverter circuit; The output of said current protecting circuit connects the input of microprocessor, and said imput output circuit links to each other with microprocessor with button and LED demonstration.
2. a kind of frequency converter according to claim 1 is characterized in that: the input of said current rectifying and wave filtering circuit and current protecting circuit is connected a SPM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202739382U CN202153709U (en) | 2011-07-31 | 2011-07-31 | Frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202739382U CN202153709U (en) | 2011-07-31 | 2011-07-31 | Frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202153709U true CN202153709U (en) | 2012-02-29 |
Family
ID=45694202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202739382U Expired - Fee Related CN202153709U (en) | 2011-07-31 | 2011-07-31 | Frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202153709U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490554A (en) * | 2016-01-29 | 2016-04-13 | 济南山开电力设备有限公司 | Variable frequency power supply |
| CN108599555A (en) * | 2018-06-11 | 2018-09-28 | 太仓市金毅电子有限公司 | Adjustable DC power supply |
-
2011
- 2011-07-31 CN CN2011202739382U patent/CN202153709U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490554A (en) * | 2016-01-29 | 2016-04-13 | 济南山开电力设备有限公司 | Variable frequency power supply |
| CN105490554B (en) * | 2016-01-29 | 2018-07-24 | 济南山开电力设备有限公司 | A kind of variable-frequency power sources |
| CN108599555A (en) * | 2018-06-11 | 2018-09-28 | 太仓市金毅电子有限公司 | Adjustable DC power supply |
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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: 20120229 Termination date: 20120731 |