CN206759413U - Current mode analog input interface circuit - Google Patents
Current mode analog input interface circuit Download PDFInfo
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- CN206759413U CN206759413U CN201720021175.XU CN201720021175U CN206759413U CN 206759413 U CN206759413 U CN 206759413U CN 201720021175 U CN201720021175 U CN 201720021175U CN 206759413 U CN206759413 U CN 206759413U
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- terminal
- input interface
- interface circuit
- resistor
- amplifier
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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 current mode 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, second resistance one end, first electric capacity one end, simulation ground terminal；The first resistor other end connection amplifier inverting input, 3rd resistor one end, second electric capacity one end；The 3rd resistor other end, the second electric capacity other end connect the amplifier out；Control source negative terminal, connects the second resistance other end, the first electric capacity other end, the 4th resistance one end, and the 4th resistance other end connects the amplifier in-phase input end；Wherein, the power supply positive terminal, control source negative terminal are also connected with active sensor, the first ground terminal connection simulation ground, second ground terminal ground.Its circuit structure is simple, convenient production and use.
Description
Technical field
It the utility model is related to analog input field, more particularly to a kind of current mode 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 current mode 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 current mode analog input interface circuit for servo controller, including it is DC power anode terminal, straight
Power cathode terminal is flowed, it is corresponding to be connected to constant-current source cathode output end, cathode output end；Control source positive terminal, connection the
One resistance one end, second resistance one end, first electric capacity one end, simulation ground terminal；The first resistor other end connection amplifier is anti-
Phase input, 3rd resistor one end, second electric capacity one end；Described in the 3rd resistor other end, the connection of the second electric capacity other end
Amplifier out；Control source negative terminal, connect the second resistance other end, the first electric capacity other end, the 4th
Resistance one end, the 4th resistance other end connect the amplifier in-phase input end；Wherein, the power supply positive terminal, electricity
Pressure input negative terminal is also connected with active sensor, the first ground terminal connection simulation ground, and second ground terminal connects
Ground.
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.
Further, the active sensor supply voltage is 24V.
Further, the active sensor output current is 4mA-20mA.
Compared with prior art, the beneficial effects of the utility model
Current mode 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 current mode 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 current mode analog input interface module frame of the present utility model for servo controller shown in Fig. 1
Figure, including DC power anode terminal AP+, DC power cathode terminal AP-, it is corresponding to be connected to constant-current source cathode output end, bear
Pole output end；Control source positive terminal AS+, connection first resistor R1 one end, second resistance R2 one end, the first electric capacity C1 mono-
End, simulation ground terminal；The first resistor R1 other ends connection amplifier OP inverting inputs, 3rd resistor R3 one end, the second electricity
Hold C2 one end；The 3rd resistor R3 other ends, the second electric capacity C2 other ends connect the amplifier OP output ends；Control source
Negative terminal AS-, the second resistance R2 other ends, the first electric capacity C1 other ends, the 4th resistance R4 one end are connected, it is described
The 4th resistance R4 other ends connect the amplifier OP in-phase input ends；Wherein, the power supply positive terminal AP+, control source
Negative terminal AS- is also connected with active sensor B, the first ground terminal AG connections simulation ground, and the sub- PE of the second ground terminal connects
Ground.
Current mode 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.
In a detailed embodiment, the active sensor supply voltage is 24V.
In a detailed embodiment, the active sensor output current is 4mA-20mA.
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 (6)
1. a kind of current mode analog input interface circuit for servo controller, it is characterised in that including dc source just
Extreme son, DC power cathode terminal, it is corresponding to be connected to constant-current source cathode output end, cathode output end；Control source positive terminal
Son, connection first resistor one end, second resistance one end, first electric capacity one end, simulation ground terminal；The first resistor other end connection
Amplifier inverting input, 3rd resistor one end, second electric capacity one end；The 3rd resistor other end, the second electric capacity other end
Connect the amplifier out；Control source negative terminal, it is another to connect the second resistance other end, first electric capacity
End, the 4th resistance one end, the 4th resistance other end connect the amplifier in-phase input end；Wherein, the positive source
Terminal, control source negative terminal are also connected with active sensor, the first ground terminal connection simulation ground, and the second ground terminal connects
Ground.
2. the current mode 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 current mode analog input interface circuit according to claim 1 for servo controller, it is characterised in that
The amplifier is isolated amplifier.
4. the current mode 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.
5. the current mode analog input interface circuit according to claim 1 for servo controller, it is characterised in that
The active sensor supply voltage is 24V.
6. the current mode analog input interface circuit according to claim 5 for servo controller, it is characterised in that
The active sensor output current is 4mA-20mA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720021175.XU CN206759413U (en) | 2017-01-09 | 2017-01-09 | Current mode analog input interface circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720021175.XU CN206759413U (en) | 2017-01-09 | 2017-01-09 | Current mode analog input interface circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206759413U true CN206759413U (en) | 2017-12-15 |
Family
ID=60608072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720021175.XU Active CN206759413U (en) | 2017-01-09 | 2017-01-09 | Current mode analog input interface circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206759413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656158A (en) * | 2017-01-09 | 2017-05-10 | 四川埃姆克伺服科技有限公司 | Current type analog input interface circuit for servo controller |
-
2017
- 2017-01-09 CN CN201720021175.XU patent/CN206759413U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656158A (en) * | 2017-01-09 | 2017-05-10 | 四川埃姆克伺服科技有限公司 | Current type analog input interface circuit for servo controller |
| CN106656158B (en) * | 2017-01-09 | 2023-05-09 | 四川埃姆克伺服科技有限公司 | Current mode analog quantity input interface circuit for servo controller |
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