CN106788392B - Single-ended analog input interface circuit for servo controller - Google Patents
Single-ended analog input interface circuit for servo controller Download PDFInfo
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- CN106788392B CN106788392B CN201710013339.9A CN201710013339A CN106788392B CN 106788392 B CN106788392 B CN 106788392B CN 201710013339 A CN201710013339 A CN 201710013339A CN 106788392 B CN106788392 B CN 106788392B
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/0175—Coupling arrangements; Interface arrangements
- H03K19/017509—Interface arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a single-ended analog input interface circuit for a servo controller, which comprises a direct current power supply positive terminal and a direct current power supply negative terminal, wherein the direct current power supply positive terminal and the direct current power supply negative terminal are correspondingly connected to a constant current source positive output end and a constant current source negative output end; the voltage input positive terminal is connected with one end of a first resistor, the other end of the first resistor is connected with the inverting input end of the amplifier, one end of a second resistor and one end of a first capacitor, and the other end of the second resistor and the other end of the first capacitor are both connected with the output end of the amplifier; the voltage input negative terminal is connected with one end of a third resistor, and the other end of the third resistor is connected with one end of a fourth resistor, the non-inverting input end of the amplifier and one end of a second capacitor; the first grounding terminal is connected with the other end of the fourth resistor and the other end of the second capacitor; the second grounding terminal is grounded, wherein the voltage input positive terminal is connected with the signal output end of the upper equipment, and the voltage input negative terminal and the first grounding terminal are also connected with analog ground.
Description
Technical Field
The invention relates to the field of analog input, in particular to a single-ended analog input interface circuit for a servo controller.
Background
In the servo driving system, the design of an analog input interface is an indispensable link, and the importance of the design is self-evident because the analog input interface can only be controlled by the analog input for the control needs of some external devices or instruments.
However, most of the existing analog input interface circuits are universal interfaces, and because different external devices need to be adapted, the circuit interfaces are complex, the interface terminals are more, and when the analog input interface circuits are directly applied to a servo driving system, parameters, even circuit structures and the like need to be changed for adaptation, so that the analog input interface circuits are very inconvenient to produce and use.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the single-ended analog input interface circuit for the servo controller, which has the advantages of simple circuit interface, few interface terminals and convenience in production and use.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a single-ended analog input interface circuit for a servo controller comprises a direct current power supply positive terminal and a direct current power supply negative terminal, which are correspondingly connected to a constant current source positive output end and a constant current source negative output end; the voltage input positive terminal is connected with one end of a first resistor, the other end of the first resistor is connected with the inverting input end of the amplifier, one end of a second resistor and one end of a first capacitor, and the other end of the second resistor and the other end of the first capacitor are both connected with the output end of the amplifier; the voltage input negative terminal is connected with one end of a third resistor, and the other end of the third resistor is connected with one end of a fourth resistor, the non-inverting input end of the amplifier and one end of a second capacitor; the first grounding terminal is connected with the other end of the fourth resistor and the other end of the second capacitor; the second grounding terminal is grounded, wherein the voltage input positive terminal is connected with the signal output end of the upper equipment, and the voltage input negative terminal and the first grounding terminal are also connected with analog ground.
Further, each of the terminals employs a screwless spring terminal.
Further, the amplifier is an isolation amplifier.
Further, the isolation voltage of the isolation amplifier is 3500Vrms-3750Vrms.
Compared with the prior art, the invention has the beneficial effects that
The single-ended analog input interface circuit for the servo controller simplifies the circuit structure by redesigning the connection relation of the interface terminals, so that the single-ended analog input interface circuit can be well adapted to external equipment of the servo driver, and is convenient to produce and use.
Drawings
FIG. 1 is a circuit diagram of a single-ended analog input interface for a servo controller according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following specific embodiments. It should not be construed that the scope of the above subject matter of the present invention is limited to the following embodiments, and all techniques realized based on the present invention are within the scope of the present invention.
Example 1:
FIG. 1 is a block diagram of a single-ended analog input interface circuit for a servo controller of the present invention, including a DC power positive terminal AP+, a DC power negative terminal AP-, correspondingly connected to a constant current source positive output terminal, a constant current source negative output terminal; the voltage input positive terminal AS+ is connected with one end of a first resistor R1, the other end of the first resistor R1 is connected with the inverting input end of the amplifier OP, one end of a second resistor R2 and one end of a first capacitor C1, and the other end of the second resistor R2 and the other end of the first capacitor C1 are both connected with the output end of the amplifier OP; the voltage input negative terminal AS-is connected with one end of a third resistor R3, and the other end of the third resistor R3 is connected with one end of a fourth resistor R4, the non-inverting input end of the amplifier OP and one end of a second capacitor C2; the first ground terminal AG is connected with the other end of the fourth resistor R4 and the other end of the second capacitor C2; the second grounding terminal PE is grounded, wherein the voltage input positive electrode terminal AS+ is connected with the signal output end of the upper equipment, and the voltage input negative electrode terminal AS-, the first grounding terminal AG is also connected with the analog ground.
The single-ended analog input interface circuit for the servo controller simplifies the circuit structure by redesigning the connection relation of the interface terminals, so that the single-ended analog input interface circuit can be well adapted to external equipment of the servo driver, and is convenient to produce and use.
In one embodiment, each of the terminals is a screwless spring terminal.
In one embodiment, the amplifier is an isolation amplifier.
In a specific embodiment, the isolation voltage of the isolation amplifier is 3500Vrms-3750Vrms.
The present invention is not limited to the above-described embodiments, but various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the claims of the present application.
Claims (4)
1. A single-ended analog input interface circuit for a servo controller is characterized by comprising a direct current power supply positive terminal (AP+), a direct current power supply negative terminal (AP-), and a constant current source positive output end and a constant current source negative output end which are correspondingly connected; the voltage input positive terminal (AS+), one end of a first resistor (R1) is connected, the other end of the first resistor (R1) is connected with the inverting input end of the amplifier (OP), one end of a second resistor (R2) and one end of a first capacitor (C1), and the other end of the second resistor (R2) and the other end of the first capacitor (C1) are both connected with the output end of the amplifier (OP); a voltage input negative terminal (AS-), which is connected with one end of a third resistor (R3), and the other end of the third resistor (R3) is connected with one end of a fourth resistor (R4), the non-inverting input end of the amplifier (OP) and one end of a second capacitor (C2); a first ground terminal (AG) is connected with the other end of the fourth resistor (R4) and the other end of the second capacitor (C2); the second grounding terminal (PE) is grounded, wherein the voltage input positive terminal (AS+) is connected with the signal output end of the upper equipment, the voltage input negative terminal (AS-) and the first grounding terminal (AG) are also connected with the analog ground.
2. The single-ended analog input interface circuit for a servo controller of claim 1, wherein each of said terminals employs a screwless spring terminal.
3. The single-ended analog input interface circuit for a servo controller of claim 1, wherein the amplifier is an isolation amplifier.
4. A single-ended analog input interface circuit for a servo controller according to claim 3, wherein the isolation voltage of the isolation amplifier is 3500Vrms-3750Vrms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710013339.9A CN106788392B (en) | 2017-01-09 | 2017-01-09 | Single-ended analog input interface circuit for servo controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710013339.9A CN106788392B (en) | 2017-01-09 | 2017-01-09 | Single-ended analog input interface circuit for servo controller |
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| Publication Number | Publication Date |
|---|---|
| CN106788392A CN106788392A (en) | 2017-05-31 |
| CN106788392B true CN106788392B (en) | 2023-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710013339.9A Active CN106788392B (en) | 2017-01-09 | 2017-01-09 | Single-ended analog input interface circuit for servo controller |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2524430Y (en) * | 2002-03-01 | 2002-12-04 | 顺德市华傲电子有限公司 | Voltage/current conversion circuit |
| JP2006060320A (en) * | 2004-08-17 | 2006-03-02 | Sony Corp | Circuit and method for differential signal driving |
| CN102290982A (en) * | 2010-05-31 | 2011-12-21 | 罗姆股份有限公司 | Transmitter, interface device, and car mounted communication system |
| CN102692883A (en) * | 2012-03-27 | 2012-09-26 | 上海华兴数字科技有限公司 | An analog input circuit for engineering-machinery-dedicated controller |
| CN203376582U (en) * | 2013-08-07 | 2014-01-01 | 宁波兴泰机械有限公司 | A servo driver analog input circuit |
| CN104022744A (en) * | 2013-02-28 | 2014-09-03 | 精工电子有限公司 | Operational amplifier |
| CN204539119U (en) * | 2015-05-21 | 2015-08-05 | 北京联合大学 | A kind of electric signal sampling isolation circuit |
| CN206759414U (en) * | 2017-01-09 | 2017-12-15 | 四川埃姆克伺服科技有限公司 | Single-ended analog input interface circuit |
-
2017
- 2017-01-09 CN CN201710013339.9A patent/CN106788392B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2524430Y (en) * | 2002-03-01 | 2002-12-04 | 顺德市华傲电子有限公司 | Voltage/current conversion circuit |
| JP2006060320A (en) * | 2004-08-17 | 2006-03-02 | Sony Corp | Circuit and method for differential signal driving |
| CN102290982A (en) * | 2010-05-31 | 2011-12-21 | 罗姆股份有限公司 | Transmitter, interface device, and car mounted communication system |
| CN102692883A (en) * | 2012-03-27 | 2012-09-26 | 上海华兴数字科技有限公司 | An analog input circuit for engineering-machinery-dedicated controller |
| CN104022744A (en) * | 2013-02-28 | 2014-09-03 | 精工电子有限公司 | Operational amplifier |
| CN203376582U (en) * | 2013-08-07 | 2014-01-01 | 宁波兴泰机械有限公司 | A servo driver analog input circuit |
| CN204539119U (en) * | 2015-05-21 | 2015-08-05 | 北京联合大学 | A kind of electric signal sampling isolation circuit |
| CN206759414U (en) * | 2017-01-09 | 2017-12-15 | 四川埃姆克伺服科技有限公司 | Single-ended analog input interface circuit |
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| CN106788392A (en) | 2017-05-31 |
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