CN203761339U - Signal sampling circuit structure - Google Patents
Signal sampling circuit structure Download PDFInfo
- Publication number
- CN203761339U CN203761339U CN201420047247.4U CN201420047247U CN203761339U CN 203761339 U CN203761339 U CN 203761339U CN 201420047247 U CN201420047247 U CN 201420047247U CN 203761339 U CN203761339 U CN 203761339U
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- signal
- amplifying unit
- unit
- active power
- chip microcomputer
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Abstract
The utility model relates to a signal sampling circuit structure which comprises a differential amplifying unit, an in-phase amplifying unit, a signal selection unit, an active power filter unit and a single chip microcomputer. A signal sampling resister is arranged in the differential amplifying unit, the differential amplifying unit is used for inputting and amplifying signals for a signal sampling circuit, the in-phase amplifying unit provides the signals for the signal sampling circuit, the signal selection unit is used for selecting the signals outputted by the in-phase amplifying unit, the active power filter unit inputs the signals selected by the signal selection unit, and the differential amplifying unit, the in-phase amplifying unit, the signal selection unit, the active power filter unit and the single chip microcomputer are sequentially connected. By the aid of the differential amplifying unit, the in-phase amplifying unit, the signal selection unit, the active power filter unit and the single chip microcomputer, signal processing accuracy of the signal sampling circuit can be improved, differential amplifying is realized, and the interference resistance of the circuit is improved.
Description
Technical field
The utility model relates to a kind of signal sample circuit structure, belongs to electron electric power technical field.
Background technology
There is phase mutual interference between jitter, signal in existing differential amplifier circuit, make the problems such as AD sampling is inadequate on signal is selected, and such circuit exists many inconvenience in actual application, can not meet the requirement of normal production.
Utility model content
The utility model object is in order to overcome the deficiencies in the prior art, to provide a kind of anti-interference strong, signal to process accurate signal sample circuit structure.
For achieving the above object, the technical solution adopted in the utility model is: a kind of signal sample circuit structure, comprises differential motion amplifying unit, homophase amplifying unit, signal selected cell, active power filtering unit and single-chip microcomputer; In described differential motion amplifying unit, be provided with sample of signal resistance; Described differential motion amplifying unit is amplified for signal sample circuit provides signal input and signal; Described homophase amplifying unit provides signal for signal sample circuit; Described signal selected cell is selected the signal of homophase amplifying unit output; Signal after described active power filtering unit is selected with regard to signal selected cell inputs to single-chip microcomputer; Described differential motion amplifying unit, homophase amplifying unit, signal selected cell, active power filtering unit are connected successively with single-chip microcomputer.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
A kind of signal sample circuit structure of the utility model scheme, by the setting of differential motion amplifying unit, homophase amplifying unit, signal selected cell, active power filtering unit and single-chip microcomputer, make signal sample circuit can improve the accuracy that signal is processed, realize differential amplification, improved the anti-interference of circuit.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
Accompanying drawing 1 is the schematic diagram of a kind of signal sample circuit structure of the present utility model;
Accompanying drawing 2 is the enlarged drawing of the differential motion amplifying unit of a kind of signal sample circuit structure of the present utility model;
Accompanying drawing 3 is the enlarged drawing of the homophase amplifying unit of a kind of signal sample circuit structure of the present utility model;
Accompanying drawing 4 is the enlarged drawing of the signal selected cell of a kind of signal sample circuit structure of the present utility model;
Accompanying drawing 5 is the enlarged drawing of the active power filtering unit of a kind of signal sample circuit structure of the present utility model;
Wherein: 1, differential motion amplifying unit; 2, homophase amplifying unit; 3, signal selected cell; 4, active power filtering unit; 5, single-chip microcomputer.
embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Accompanying drawing 1-5 is a kind of signal sample circuit structure described in the utility model, comprises differential motion amplifying unit 1, homophase amplifying unit 2, signal selected cell 3, active power filtering unit 4 and single-chip microcomputer 5; In described differential motion amplifying unit 1, be provided with sample of signal resistance; Described differential motion amplifying unit 1 is amplified for signal sample circuit provides signal input and signal; Described homophase amplifying unit 2 provides signal for signal sample circuit; The signal of 3 pairs of homophase amplifying units of described signal selected cell, 2 outputs is selected; Signal after described active power filtering unit 4 is selected with regard to signal selected cell 3 inputs to single-chip microcomputer 5; Described differential motion amplifying unit 1, homophase amplifying unit 2, signal selected cell 3, active power filtering unit 4 and single-chip microcomputer 5 are connected successively.
In signal sample circuit structure, signal is from differential motion amplifying unit 1 end input, through sample of signal resistance, amplify, entered amplifying signal again through homophase amplifying unit 2, from homophase amplifying unit 2 end output signals, through signal selected cell 3, for unlike signal, select, the signal after selection is transferred to single-chip microcomputer 5 through active power filtering unit 4 again.
The utility model scheme is by the setting of differential motion amplifying unit 1, homophase amplifying unit 2, signal selected cell 3, active power filtering unit 4 and single-chip microcomputer 5, make signal sample circuit can improve the accuracy that signal is processed, realize differential amplification, improved the anti-interference of circuit.
Below be only concrete exemplary applications of the present utility model, protection range of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, within all dropping on the utility model rights protection scope.
Claims (1)
1. a signal sample circuit structure, is characterized in that: comprise differential motion amplifying unit, homophase amplifying unit, signal selected cell, active power filtering unit and single-chip microcomputer; In described differential motion amplifying unit, be provided with sample of signal resistance; Described differential motion amplifying unit is amplified for signal sample circuit provides signal input and signal; Described homophase amplifying unit provides signal for signal sample circuit; Described signal selected cell is selected the signal of homophase amplifying unit output; Signal after described active power filtering unit is selected with regard to signal selected cell inputs to single-chip microcomputer; Described differential motion amplifying unit, homophase amplifying unit, signal selected cell, active power filtering unit are connected successively with single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420047247.4U CN203761339U (en) | 2014-01-24 | 2014-01-24 | Signal sampling circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420047247.4U CN203761339U (en) | 2014-01-24 | 2014-01-24 | Signal sampling circuit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203761339U true CN203761339U (en) | 2014-08-06 |
Family
ID=51256570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420047247.4U Expired - Fee Related CN203761339U (en) | 2014-01-24 | 2014-01-24 | Signal sampling circuit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203761339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812461A (en) * | 2014-01-24 | 2014-05-21 | 苏州融达兴电气有限公司 | Signal sampling circuit structure |
-
2014
- 2014-01-24 CN CN201420047247.4U patent/CN203761339U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812461A (en) * | 2014-01-24 | 2014-05-21 | 苏州融达兴电气有限公司 | Signal sampling circuit structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20190124 |