CN201514631U - ASI bus signal coupling generating circuit - Google Patents
ASI bus signal coupling generating circuit Download PDFInfo
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- CN201514631U CN201514631U CN2009202360735U CN200920236073U CN201514631U CN 201514631 U CN201514631 U CN 201514631U CN 2009202360735 U CN2009202360735 U CN 2009202360735U CN 200920236073 U CN200920236073 U CN 200920236073U CN 201514631 U CN201514631 U CN 201514631U
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- asi bus
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Abstract
The utility model relates to an ASI bus signal coupling generating circuit, which comprises a DC output power source and a signal conversion circuit; the signal conversion circuit comprises two groups of signal conversion resistors and inductances which are connected with each other in parallel; and each group of signal conversion resistors and inductances is respectively connected with a positive DC output end and a negative DC output end of the DC output power source. The circuit is mainly used for generating the transmission signal of the on-site ASI bus, and is mainly used for converting a sine current code in the system to a sine voltage positive-negative pulse to be loaded onto an ASI system power source so as to form a carrier signal on the power source and to realize the common transmission of the power source and the signal on the same physical circuit.
Description
Technical field
The utility model belongs in the industrial automation field, specifically is that the ASI bus signals coupling of a kind of ASI of applying to bus, the generation that realizes bus signals produces circuit.
Background technology
In various industrial automations scene, site environment is comparatively complicated, and electromagnetic radiation is serious, is easy to bring bigger interference to system, can be better for making system, and in all kinds of environment of reliability service, this just requires system to possess great antijamming capability.In the ASI bus, in order to guarantee signal transmission reliably in physical bus, it adopts Manchester 2 codings, forms pulse waveform by sinusoidal current, thus the delivery of system information signal.The conversion that realizes described sinusoidal current signal is a requisite signal generation system in the ASI system, also is system stability, the basis of reliably working.
Summary of the invention
In order to realize described sinusoidal current signal, the utility model proposes a kind of new ASI bus signals coupling and produce circuit, concrete technical scheme is as follows:
A kind of ASI bus signals coupling produces circuit, comprises dc output power and signal conversion circuit; Described signal conversion circuit comprises two groups of signal transformation resistance and inductance of being connected in parallel; Every group of signal transformation resistance and inductance are connected on "+", "-" dc output end of dc output power respectively.The output terminal of signal conversion circuit is used to connect "+", "-" two ends of corresponding ASI signal.
Signal transformation resistance in described two groups of signal conversion circuits is identical, and the sense value of inductance is identical; The coil of two groups of inductance with not with the mode of flux compensation common mode on same magnetic core.
Described dc output power is a Switching Power Supply.
Described Switching Power Supply output 29.5～31.6V direct current.Described signal transformation resistance all is 33 Ω.The sense value of described inductance all is 25uH.
Signal conversion circuit is made up of two identical inductance and two resistance of parameter, in order better to make circuit keep symmetry and impedance matching, thereby reach good antijamming capability, two inductance are designed to the mode of a miniature transformer, and transformer is made of in the mode with the flux compensation common mode not two windings.
This circuit is mainly realized the generation of on-the-spot ASI bus transfer signal, it mainly converts the sinusoidal voltage positive negative pulse stuffing to the sinusoidal current sign indicating number in the system, be loaded into then on the ASI system power supply, on power supply, form carrier signal, realize power supply and the common transmission of signal on same physical circuit.
Figure of description
Fig. 1 is this power supply signal plate circuit block diagram.
Embodiment is as follows
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment:
A kind of ASI bus signals coupling produces circuit, comprises dc output power and signal conversion circuit; Described signal conversion circuit comprises two groups of signal transformation resistance and inductance of being connected in parallel; Every group of signal transformation resistance and inductance are connected on "+", "-" dc output end of dc output power respectively.The output terminal of signal conversion circuit is used to connect "+", "-" two ends of corresponding ASI signal.
Signal transformation resistance in described two groups of signal conversion circuits is identical, and the sense value of inductance is identical; The coil of two groups of inductance with not with the mode of flux compensation common mode on same magnetic core.
Described dc output power is a Switching Power Supply.
Signal conversion circuit is made up of two identical inductance and two resistance of parameter, in order better to make circuit keep symmetry and impedance matching, thereby reach good antijamming capability, two inductance are designed to the mode of a miniature transformer, and transformer is made of in the mode with the flux compensation common mode not two windings.
In this example, the parameter of inductance and resistance is respectively 25uH and 33 ' Ω, and each inductance and resistance are connected in parallel in the Switching Power Supply of 29.5～31.6V direct current output.This circuit can produce the voltage signal that satisfies the requirement of ASI bus voltage signal level, satisfies the desired signal transmission frequencies of ASI, produces bigger inhibiting effect to disturbing with high-frequency signal simultaneously.During concrete the application, two inductance are selected the transformer of two windings for use, and two windings of this transformer are two inductance, and are very simple.
Claims (6)
1. an ASI bus signals coupling produces circuit, it is characterized in that comprising dc output power and signal conversion circuit; Described signal conversion circuit comprises two groups of signal transformation resistance and inductance of being connected in parallel; Every group of signal transformation resistance and inductance are connected on "+", "-" dc output end of dc output power respectively.
2. ASI bus signals coupling according to claim 1 produces circuit, it is characterized in that the signal transformation resistance in described two groups of signal conversion circuits is identical, and the sense value of inductance is identical; The coil of two groups of inductance with not with the mode of flux compensation common mode on same magnetic core.
3. ASI bus signals coupling according to claim 1 produces circuit, it is characterized in that described dc output power is a Switching Power Supply.
4. ASI bus signals coupling according to claim 3 produces circuit, it is characterized in that described Switching Power Supply output 29.5～31.6V direct current.
5. ASI bus signals coupling according to claim 2 produces circuit, it is characterized in that described signal transformation resistance all is 33 Ω.
6. ASI bus signals coupling according to claim 2 produces circuit, and the sense value that it is characterized in that described inductance all is 25uH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202360735U CN201514631U (en) | 2009-09-23 | 2009-09-23 | ASI bus signal coupling generating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202360735U CN201514631U (en) | 2009-09-23 | 2009-09-23 | ASI bus signal coupling generating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201514631U true CN201514631U (en) | 2010-06-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202360735U Expired - Fee Related CN201514631U (en) | 2009-09-23 | 2009-09-23 | ASI bus signal coupling generating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201514631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115542792A (en) * | 2022-08-31 | 2022-12-30 | 东莞市瑚谷机械电子科技有限公司 | Method for realizing ASI communication control slave station module with single chip microcomputer as core |
-
2009
- 2009-09-23 CN CN2009202360735U patent/CN201514631U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115542792A (en) * | 2022-08-31 | 2022-12-30 | 东莞市瑚谷机械电子科技有限公司 | Method for realizing ASI communication control slave station module with single chip microcomputer as core |
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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 |
Granted publication date: 20100623 Termination date: 20170923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |