CN203027137U - Module for isolated conversion from one path of input into two paths of electric signal outputs - Google Patents
Module for isolated conversion from one path of input into two paths of electric signal outputs Download PDFInfo
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- CN203027137U CN203027137U CN 201220724553 CN201220724553U CN203027137U CN 203027137 U CN203027137 U CN 203027137U CN 201220724553 CN201220724553 CN 201220724553 CN 201220724553 U CN201220724553 U CN 201220724553U CN 203027137 U CN203027137 U CN 203027137U
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Abstract
The utility model discloses a module for isolated conversion from one path of input into two paths of electric signal outputs. A main voltage and current conversion circuit (1) is connected with a voltage modulation circuit (2); the voltage modulation circuit (2) is connected with an isolation transformer (3); the isolation transformer (3) is connected with a first demodulation circuit (4) and a second demodulation circuit (6) at the same time; the first demodulation circuit (4) is connected with a first voltage current conversion circuit (5); the second demodulation circuit (6) is connected with a second voltage and current conversion circuit (7); and a power supply circuit (8) provides a power supply to each circuit. The module has the advantages of strong anti-jamming capacity, high security and reliability, and large intelligent degree, can transmit an electric signal at a long distance, and optimizes the traditional lead rail mode with large volume into a small module mode. Therefore, achievement of miniaturization of a terminal product is facilitated.
Description
[technical field]
The utility model relates to the direct current power input of automatically controlling output voltage or electric current and is transformed to direct current power output, espespecially a kind of one tunnel input isolation conversion two path signal output module.
[background technology]
Along with the development of science and technology, industry spot, power monitoring, Medical Devices, the fields such as experimental study require also more and more higher to the control of remote equipment.In view of the attention degree to its result, and to the control precision of Remote Device Control module, antijamming capability, security reliability, intelligent degree, mounting meanss etc. have higher requirement.In common the field, actuator and actuating equipment are all accepted the current signal of 4-20mA, and the single-chip microcomputer, the PLC that generally are used as host computer do not have the interface of 4-20mA analog signal output, and output is direct voltage or current signal, long Distance Transmission due to signal, voltage difference between the ground wire of host computer and actuating equipment may reach tens, hundreds of is even gone up kilovolt, if it is inaccurate that direct conveying just has data, the phenomenon such as beat, possibility damage equipment when serious is so must take quarantine measures.
[summary of the invention]
For the shortcoming of prior art, the purpose of this utility model is to provide a kind of one tunnel input isolation conversion two path signal output module.
the technical scheme that its technical problem that solves the utility model adopts is: a kind of one tunnel input isolation conversion two path signal output module is provided, comprise the principal voltage current conversion circuit, voltage modulation circuit, isolating transformer, the first demodulator circuit, the first voltage current transformating circuit, the second demodulator circuit, second voltage current conversion circuit and power circuit, described principal voltage current conversion circuit is connected with voltage modulation circuit, voltage modulation circuit is connected with isolating transformer, isolating transformer simultaneously with the first demodulator circuit be connected demodulator circuit and be connected, the first demodulator circuit is connected with the first voltage current transformating circuit, the second demodulator circuit is connected with the second voltage current conversion circuit, power circuit is supplied with each circuit power.
The circuit that the principal voltage current conversion circuit can be comprised of IC:LM258_SOP8 can effectively improve common-mode rejection ratio and antijamming capability.
Isolating transformer is realized the signal electrical isolation.
Reconciling circuit can be the circuit that IC:TL431/SOT-23 forms, and comprises level shift circuit, is conducive to improve conversion accuracy.
Comprise low pass filter at demodulator circuit, be conducive to reduce ripple, have simultaneously the response time fast.
The first voltage current transformating circuit and second voltage current conversion circuit are realized the output of module product demand, and guarantee to have enough load capacities and wider dynamic range.Can comprise by ic chip: the circuit that LM258_SOP8 forms.
Power circuit can be the power supply insulating power supply, can comprise anti-input power reverse polarity connection protective circuit, reference voltage source circuit, guarantees good stability and the reliability of product.Can adopt ic chip: TL431/SOT-23 and BAV70/SOT-23 to form.
The utility model technology input circuit adopts the voltage current transformating circuit conversion, and the direct voltage modulation circuit is modulated d. c. voltage signal, utilize the transformer isolation transmission, then modulation signal is carried out demodulation, get its DC voltage component by low pass filter again, be converted to the required signal of telecommunication of user by change-over circuit at last.
The beneficial effects of the utility model are: antijamming capability is strong, and security reliability is high, and intelligent degree is large, can grow distance and pass on the signal of telecommunication, and very large guide tracked of script volume is optimized for very little modular, conveniently realizes the miniaturization of end product.
[description of drawings]
The utility model will be further described below in conjunction with accompanying drawing.
Fig. 1 is the utility model module whole theory diagram.
Fig. 2 is the utility model module voltage/power pack electrical schematic diagram.
Fig. 3 is the utility model modular power source electrical schematic diagram.
Fig. 4 is the utility model module apparent size figure.
Fig. 5 is the utility model module pin and pcb board dimensional drawing
In figure: 1 is that principal voltage current conversion circuit, 2 is that voltage modulation circuit, 3 is that isolating transformer, 4 is that the first demodulator circuit, 5 is that the first voltage current transformating circuit, 6 is that the second demodulator circuit, 7 is that second voltage current conversion circuit, 8 is power circuit.
[embodiment]
referring to accompanying drawing, a kind of one tunnel input isolation conversion two path signal output module of the utility model, it is characterized in that: comprise principal voltage current conversion circuit 1, voltage modulation circuit 2, isolating transformer 3, the first demodulator circuit 4, the first voltage current transformating circuit 5, the second demodulator circuit 6, second voltage current conversion circuit 7 and power circuit 8, described principal voltage current conversion circuit 1 is connected with voltage modulation circuit 2, voltage modulation circuit 2 is connected with isolating transformer 3, isolating transformer 3 simultaneously with the first demodulator circuit 4 be connected demodulator circuit 6 and be connected, the first demodulator circuit 4 is connected with the first voltage current transformating circuit 5, the second demodulator circuit 6 is connected with second voltage current conversion circuit 7, power circuit 8 is supplied with each circuit power.
In enforcement of the present utility model was executed, described principal voltage current conversion circuit 1 was by adopting the circuit that is comprised of ic chip: LM258_SOP8, and this circuit can effectively improve common-mode rejection ratio and antijamming capability.
Isolating transformer 3 is realized the signal electrical isolation.
In enforcement of the present utility model was executed, described modulation circuit adopted the circuit that is comprised of IC:TL431/SOT-23
In enforcement of the present utility model was executed, described the first voltage current transformating circuit and second voltage current conversion circuit adopted the circuit that is comprised of ic chip: LM258_SOP8.
In enforcement of the present utility model was executed, described power circuit 8 was insulating power supply circuit, had anti-input power reverse polarity connection protective circuit and reference voltage source circuit, guaranteed good stability and the reliability of product.The circuit that use is comprised of ic chip: TL431/SOT-23 and BAV70/SOT-23.
Claims (5)
1. the two path signal output module is changed in an input isolation, it is characterized in that: comprise principal voltage current conversion circuit (1), voltage modulation circuit (2), isolating transformer (3), the first demodulator circuit (4), the first voltage current transformating circuit (5), the second demodulator circuit (6), second voltage current conversion circuit (7) and power circuit (8), described principal voltage current conversion circuit (1) is connected with voltage modulation circuit (2), voltage modulation circuit (2) is connected with isolating transformer (3), isolating transformer (3) simultaneously with the first demodulator circuit (4) be connected demodulator circuit (6) and be connected, the first demodulator circuit (4) is connected with the first voltage current transformating circuit (5), the second demodulator circuit (6) is connected with second voltage current conversion circuit (7), power circuit (8) is supplied with each circuit power.
2. one tunnel input isolation conversion two path signal output module according to claim 1, is characterized in that: the circuit that described principal voltage current conversion circuit (1) is comprised of ic chip: LM258_SOP8.
3. one tunnel input isolation conversion two path signal output module according to claim 1, is characterized in that: the circuit that described modulation circuit employing is comprised of IC:TL431/SOT-23.
4. one tunnel input isolation conversion two path signal output module according to claim 1, is characterized in that: the circuit that described the first voltage current transformating circuit and the employing of second voltage current conversion circuit are comprised of ic chip: LM258_SOP8.
5. the two path signal output module is changed in one tunnel input isolation according to claim 1, and it is characterized in that: described power circuit (8) is the insulating power supply circuit, uses the circuit that is comprised of ic chip: TL431/SOT-23 and BAV70/SOT-23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724553 CN203027137U (en) | 2012-12-26 | 2012-12-26 | Module for isolated conversion from one path of input into two paths of electric signal outputs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724553 CN203027137U (en) | 2012-12-26 | 2012-12-26 | Module for isolated conversion from one path of input into two paths of electric signal outputs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203027137U true CN203027137U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220724553 Expired - Fee Related CN203027137U (en) | 2012-12-26 | 2012-12-26 | Module for isolated conversion from one path of input into two paths of electric signal outputs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203027137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111464175A (en) * | 2020-04-16 | 2020-07-28 | 深圳市顺源科技有限公司 | 10 kilovolt high-voltage-withstanding analog signal isolation circuit |
| CN114296412A (en) * | 2021-12-23 | 2022-04-08 | 中铭谷智能机器人(广东)有限公司 | Starting control system and method for multiple devices |
-
2012
- 2012-12-26 CN CN 201220724553 patent/CN203027137U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111464175A (en) * | 2020-04-16 | 2020-07-28 | 深圳市顺源科技有限公司 | 10 kilovolt high-voltage-withstanding analog signal isolation circuit |
| CN111464175B (en) * | 2020-04-16 | 2023-08-11 | 深圳市顺源科技有限公司 | 10-kilovolt high-voltage-resistant analog signal isolation circuit |
| CN114296412A (en) * | 2021-12-23 | 2022-04-08 | 中铭谷智能机器人(广东)有限公司 | Starting control system and method for multiple devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Shun source technology Co., Ltd. Assignor: Yu Guangyuan Contract record no.: 2013440020281 Denomination of utility model: Module for isolated conversion from one path of input into two paths of electric signal outputs Granted publication date: 20130626 License type: Exclusive License Record date: 20131012 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20151226 |
|
| EXPY | Termination of patent right or utility model |