CN206759416U - Difference type analog input interface circuit - Google Patents
Difference type analog input interface circuit Download PDFInfo
- Publication number
- CN206759416U CN206759416U CN201720022548.5U CN201720022548U CN206759416U CN 206759416 U CN206759416 U CN 206759416U CN 201720022548 U CN201720022548 U CN 201720022548U CN 206759416 U CN206759416 U CN 206759416U
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- China
- Prior art keywords
- terminal
- resistor
- amplifier
- resistance
- input interface
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- Withdrawn - After Issue
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Abstract
It is corresponding to be connected to constant-current source cathode output end, cathode output end the utility model discloses a kind of difference type analog input interface circuit for servo controller, including DC power anode terminal, DC power cathode terminal；Control source positive terminal, connection first resistor one end, the first resistor other end connection amplifier inverting input, second resistance one end, first electric capacity one end, the second resistance other end, the first electric capacity other end are all connected with the amplifier out；Control source negative terminal, connection 3rd resistor one end, the 3rd resistor other end connect the 4th resistance one end, the amplifier in-phase input end, second electric capacity one end；First ground terminal connection analog quantity earth terminal, the 4th resistance other end, the second electric capacity other end；Second ground terminal ground, wherein, the control source positive terminal, control source negative terminal connect upper device signal output end.Circuit structure is simple, facilitates production and application.
Description
Technical field
It the utility model is related to analog input field, more particularly to a kind of difference type analog quantity for servo controller
Input interface circuit.
Background technology
In servo drive system, design simulation amount input interface is an essential link, due to for some
The control of external equipment or instrument needs, and can only be controlled by analog quantity, therefore the importance of its design is self-evident.
However, existing analog input interface circuit is mostly general-purpose interface, set due to needing to be adapted to different outsides
Standby, therefore its circuit interface is complex, Interface Terminal is more, and, it is necessary to enter when being directly applied to servo drive system
The change of row parameter even circuit structure etc. could be adapted to, and it is produced, using extremely inconvenient.
Utility model content
The utility model is the above-mentioned deficiency for overcoming prior art, there is provided a kind of circuit interface is simple, and Interface Terminal is few,
Production, the difference type analog input interface circuit for servo controller easy to use.
In order to realize above-mentioned purpose of utility model, the technical solution adopted in the utility model is：
A kind of difference type analog input interface circuit for servo controller, including DC power anode terminal AP+,
DC power cathode terminal AP-, it is corresponding to be connected to constant-current source cathode output end, cathode output end；Control source positive terminal AS
+, connection first resistor R1 one end, the first resistor R1 other ends connection amplifier OP inverting inputs, second resistance R2 mono-
End, first electric capacity C1 one end, the second resistance R2 other ends, the first electric capacity C1 other ends are all connected with the amplifier OP outputs
End；Control source negative terminal AS-, connection 3rd resistor R3 one end, the 3rd resistor R3 other ends connect the 4th resistance R4
One end, the amplifier OP in-phase input ends, second electric capacity C2 one end；First ground terminal AG connection analog quantitys earth terminal, institute
State the 4th resistance R4 other ends, the second electric capacity C2 other ends；The second ground terminal PE ground connection, wherein, the voltage
Input positive terminal AS+, the upper device signal output end of control source negative terminal AS- connections.
Further, each terminal, which uses, exempts from screw spring terminal.
Further, the amplifier is isolated amplifier.
Further, the isolation voltage of the isolated amplifier is 3500Vrms-3750Vrms.
Compared with prior art, the beneficial effects of the utility model
Difference type analog input interface circuit of the present utility model for servo controller, by redesigning interface
The annexation of terminal, simplify circuit structure, servo-driver external equipment can be adapted to well, convenient production is with making
With.
Brief description of the drawings
It is the difference type analog input interface circuit figure of the present utility model for servo controller shown in Fig. 1.
Embodiment
The utility model is described in further detail with reference to embodiment.But this should not be interpreted as to this
The scope of the above-mentioned theme of utility model is only limitted to following embodiment, and all technologies realized based on the utility model content are belonged to
In the scope of the utility model.
Embodiment 1：
It is the difference type analog input interface module frame of the present utility model for servo controller shown in Fig. 1
Figure, including DC power anode terminal, DC power cathode terminal, it is corresponding to be connected to constant-current source cathode output end, negative pole output
End；Control source positive terminal, connection first resistor one end, the first resistor other end connection amplifier inverting input,
Second resistance one end, first electric capacity one end, the second resistance other end, that the first electric capacity other end is all connected with the amplifier is defeated
Go out end；Control source negative terminal, connection 3rd resistor one end, the 3rd resistor other end connect the 4th resistance one end, institute
State amplifier in-phase input end, second electric capacity one end；First ground terminal connection analog quantity earth terminal, the 4th resistance are another
End, the second electric capacity other end；Second ground terminal ground, wherein, the control source positive terminal, control source
Negative terminal connects upper device signal output end.
Difference type analog input interface circuit of the present utility model for servo controller, by redesigning interface
The annexation of terminal, simplify circuit structure, servo-driver external equipment can be adapted to well, convenient production is with making
With.
In a detailed embodiment, each terminal, which uses, exempts from screw spring terminal.
In a detailed embodiment, the amplifier is isolated amplifier.
In a detailed embodiment, the isolation voltage of the isolated amplifier is 3500Vrms-3750Vrms.
Specific embodiment of the present utility model is described in detail above in conjunction with accompanying drawing, but the utility model is not
It is limited to above-mentioned embodiment, in the case of the spirit and scope of claims hereof are not departed from, those skilled in the art
Member can be so that various modification can be adapted or remodeling.
Claims (4)
1. a kind of difference type analog input interface circuit for servo controller, it is characterised in that including dc source just
Extreme son (AP+), DC power cathode terminal (AP-), it is corresponding to be connected to constant-current source cathode output end, cathode output end；Voltage
Positive terminal (AS+) is inputted, connects first resistor (R1) one end, first resistor (R1) other end connection amplifier (OP) is anti-
Phase input, second resistance (R2) one end, the first electric capacity (C1) one end, second resistance (R2) other end, the first electric capacity
(C1) other end is all connected with the amplifier (OP) output end；Control source negative terminal (AS-), connection 3rd resistor (R3) one
End, 3rd resistor (R3) other end connect the 4th resistance (R4) one end, the amplifier (OP) in-phase input end, the second electricity
Hold (C2) one end；First ground terminal (AG) connection analog quantity earth terminal, the 4th resistance (R4) other end, second electricity
Hold (C2) other end；Second ground terminal (PE) is grounded, wherein, the control source positive terminal (AS+), control source negative pole
Terminal (AS-) connects upper device signal output end.
2. the difference type analog input interface circuit according to claim 1 for servo controller, it is characterised in that
Each terminal, which uses, exempts from screw spring terminal.
3. the difference type analog input interface circuit according to claim 1 for servo controller, it is characterised in that
The amplifier is isolated amplifier.
4. the difference type analog input interface circuit according to claim 3 for servo controller, it is characterised in that
The isolation voltage of the isolated amplifier is 3500Vrms-3750Vrms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720022548.5U CN206759416U (en) | 2017-01-09 | 2017-01-09 | Difference type analog input interface circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720022548.5U CN206759416U (en) | 2017-01-09 | 2017-01-09 | Difference type analog input interface circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206759416U true CN206759416U (en) | 2017-12-15 |
Family
ID=60607119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720022548.5U Withdrawn - After Issue CN206759416U (en) | 2017-01-09 | 2017-01-09 | Difference type analog input interface circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206759416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106888012A (en) * | 2017-01-09 | 2017-06-23 | 四川埃姆克伺服科技有限公司 | A kind of difference type analog input interface circuit for servo controller |
-
2017
- 2017-01-09 CN CN201720022548.5U patent/CN206759416U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106888012A (en) * | 2017-01-09 | 2017-06-23 | 四川埃姆克伺服科技有限公司 | A kind of difference type analog input interface circuit for servo controller |
| CN106888012B (en) * | 2017-01-09 | 2023-06-16 | 四川埃姆克伺服科技有限公司 | Differential analog input interface circuit for servo controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171215 Effective date of abandoning: 20230616 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171215 Effective date of abandoning: 20230616 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |