CH594340A5 - Arrangement to isolate potentially interfering circuits - Google Patents
Arrangement to isolate potentially interfering circuitsInfo
- Publication number
- CH594340A5 CH594340A5 CH905875A CH905875A CH594340A5 CH 594340 A5 CH594340 A5 CH 594340A5 CH 905875 A CH905875 A CH 905875A CH 905875 A CH905875 A CH 905875A CH 594340 A5 CH594340 A5 CH 594340A5
- Authority
- CH
- Switzerland
- Prior art keywords
- low
- switching elements
- frequency switching
- circuit board
- current
- Prior art date
Links
- 230000002452 interceptive effect Effects 0.000 title abstract 2
- 230000008878 coupling Effects 0.000 claims abstract description 14
- 238000010168 coupling process Methods 0.000 claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 claims abstract description 14
- 230000003287 optical effect Effects 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 claims description 2
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
- H04B10/801—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections
- H04B10/803—Free space interconnects, e.g. between circuit boards or chips
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
- H04B10/801—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections
- H04B10/802—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections for isolation, e.g. using optocouplers
-
- H04B5/75—
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
Abstract
Arrangement to isolate potentially interfering circuits uses parallel circuit boards with magnetic or optical coupling to isolate electrical couplings
Description
Die Erfindung bezieht sich auf ein Steuergerät mit Schwach- und Starkstrom- und/oder hoch- und niederfrequenten Schaltelementen, die auf in Anschlussleisten eines Einschubgestelles eingesetzten Leiterplatten angeordnet sind.
Bei Steuerungen, beispielsweise von Werkzeugmaschinen, ist die Schaltung aus sowohl Schwach- wie auch Starkstrombauelementen bzw. hoch- und niederfrequenten Bauelementen zusammengestellt. Diese verschiedenartigen Bauelemente innerhalb eines Gerätes, oft sogar auf der gleichen Leiterplatte, können sich gegenseitig beeinflussen und Fehlschaltungen verursachen. Insbesondere Schaltspitzen oder Netzbrumm sind häufige Ursachen für Fehlschaltungen. Man versuchte bisher, diese Störquellen durch eine möglichst grosse räumliche Trennung oder durch Abschirmungen zu vermindern.
Die Erfindung stellt sich zur Aufgabe, ein Steuergerät zu schaffen, bei dem die gegenseitige Beeinflussung von Schwachund Starkstrom- bzw. hoch- und niederfrequenten Schaltelementen möglichst gering ist.
Dies wird erfindungsgemäss mit einem Steuergerät mit Schwach- und Starkstrom- bzw. hoch- und niederfrequenten Schaltelementen erreicht, bei welchem miteinander zu koppelnde Schwach- und Starkstrom- bzw. hoch- und niederfrequente Schaltelemente je auf einander benachbarten Leiterplatten angeordnet sind, und die Koppelung optisch oder magnetisch erfolgt, um die Beeinflussung zwischen Schwachund Starkstrom bzw. hoch- oder niederfrequenten Schaltelementen zu vermindern.
Besonders vorteilhaft ist eine Anordnung, bei der auf einer Leiterplatte ein Schwachstrom- bzw. hochfrequentes Schaltelement und auf einer benachbarten Leiterplatte ein Starkstrom- bzw. niederfrequentes Schaltelement angeordnet ist, wobei diese beiden Elemente miteinander gekoppelt sind.
Anhand der Zeichnung wird die Anordnung der Schaltelemente in einem erfindungsgemässen Steuergerät erläutert.
Mit L1-L4 sind Leiterplatten, die in einem nicht dargestellten Einschubgestell angeordnet sind, bezeichnet. Die Leiterplatten L1-L4 sind in Anschlussleisten A1-A4 (auch Steckerleisten genannt) eingesetzt. Deutlich erkennbar ist, dass keine direkten galvanischen Verbindungen zwischen zwei benachbarten Leiterplatten bestehen. Die Anschlussdrähte der Steckerleisten Al und A3 laufen zu einem Kabelstrang K1, die Anschlussdrähte der Steckerleisten A2 und A4 zum Kabelstrang K2 zusammen.
Steuerbefehle, die von einem Schaltkreis auf der Leiterplatte L1 zu einem Schaltkreis auf der benachbarten Leiterplatte L2 gesandt werden sollen, werden nun durch eine optische oder magnetische Koppelung übermittelt. Prinzipiell ist für eine solche Koppelung auf der einen Platte mindestens ein Sender, auf der anderen Seite mindestens ein Empfänger notwendig.
Gebräuchlich sind Koppelungen mit Infrarotlicht. Selbstverständlich sind aber auch Koppelungen mit elektromagnetischen Wellen möglich. Wesentlich ist jedoch, dass Sender und Empfänger im gleichen Wellenbereich arbeiten.
Durch die geschickte Führung der Kabelstränge Kl, K2 ist auch eine günstige räumliche Trennung von Stark- und Schwachstromkreisen möglich.
PATENTANSPRUCH
Elektrisches Steuergerät mit Schwach- und Starkstromund/oder hoch- und niederfrequenten Schaltelementen, die auf in Anschlussleisten eines Einschubgestelles eingesetzten Leiterplatten angeordnet sind, dadurch gekennzeichnet, dass miteinander zu koppelnde Schwach- und Starkstrom- bzw.
hoch- und niederfrequente Schaltelemente je auf einer benachbarten Leiterplatte (L1-L4) angeordnet sind und dass die Koppelung optisch oder magnetisch erfolgt, um die Beeinflussung zwischen Schwach- und Starkstrom bzw. hochund niederfrequenten Schaltelementen zu vermindern.
UNTERANSPRUCH
Steuergerät nach Patentanspruch, dadurch gekennzeichnet, dass auf einer Leiterplatte (L1, L3) ein Schwachstromschaltelement und auf einer benachbarten Leiterplatte (L2, L4) ein Starkstromelement angeordnet ist, wobei diese beiden Elemente miteinander gekoppelt sind.
**WARNUNG** Ende DESC Feld konnte Anfang CLMS uberlappen**.
The invention relates to a control device with low and high current and / or high and low frequency switching elements, which are arranged on printed circuit boards inserted in connection strips of a rack.
In the case of controls, for example of machine tools, the circuit is composed of both low-voltage and high-voltage components or high-frequency and low-frequency components. These different types of components within a device, often even on the same circuit board, can influence one another and cause incorrect switching. Switching peaks or mains hum are particularly frequent causes of incorrect switching. Up to now, attempts have been made to reduce these sources of interference by as large a spatial separation as possible or by shielding.
The object of the invention is to create a control device in which the mutual influence of low and high current or high and low frequency switching elements is as small as possible.
This is achieved according to the invention with a control device with low and high current or high and low frequency switching elements, in which low and high current or high and low frequency switching elements to be coupled are each arranged on adjacent circuit boards, and the coupling is optical or magnetically to reduce the influence between low and high current or high or low frequency switching elements.
An arrangement is particularly advantageous in which a low-current or high-frequency switching element is arranged on a printed circuit board and a high-current or low-frequency switching element is arranged on an adjacent printed circuit board, these two elements being coupled to one another.
The arrangement of the switching elements in a control device according to the invention is explained with the aid of the drawing.
With L1-L4 circuit boards which are arranged in a rack (not shown) are designated. The circuit boards L1-L4 are inserted in connection strips A1-A4 (also called plug strips). It can be clearly seen that there are no direct galvanic connections between two neighboring circuit boards. The connection wires of the connector strips A1 and A3 run together to form a cable harness K1, the connection wires of the connector strips A2 and A4 to form a cable harness K2.
Control commands that are to be sent from a circuit on the circuit board L1 to a circuit on the adjacent circuit board L2 are now transmitted through an optical or magnetic coupling. In principle, at least one transmitter on one plate and at least one receiver on the other is necessary for such a coupling.
Couplings with infrared light are common. Couplings with electromagnetic waves are of course also possible. However, it is essential that the transmitter and receiver work in the same waveband.
The clever routing of the cable harnesses Kl, K2 also enables a favorable spatial separation of high and low power circuits.
PATENT CLAIM
Electrical control device with low and high current and / or high and low frequency switching elements, which are arranged on circuit boards inserted in connection strips of a rack, characterized in that low and high current or
high and low frequency switching elements are each arranged on an adjacent circuit board (L1-L4) and that the coupling is optical or magnetic in order to reduce the influence between low and high current or high and low frequency switching elements.
SUBClaim
Control device according to patent claim, characterized in that a low-current switching element is arranged on a printed circuit board (L1, L3) and a high-voltage element is arranged on an adjacent printed circuit board (L2, L4), these two elements being coupled to one another.
** WARNING ** End of DESC field could overlap beginning of CLMS **.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH905875A CH594340A5 (en) | 1975-07-10 | 1975-07-10 | Arrangement to isolate potentially interfering circuits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH905875A CH594340A5 (en) | 1975-07-10 | 1975-07-10 | Arrangement to isolate potentially interfering circuits |
Publications (1)
Publication Number | Publication Date |
---|---|
CH594340A5 true CH594340A5 (en) | 1978-01-13 |
Family
ID=4347864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH905875A CH594340A5 (en) | 1975-07-10 | 1975-07-10 | Arrangement to isolate potentially interfering circuits |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH594340A5 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0101853A2 (en) * | 1982-07-21 | 1984-03-07 | Siemens Aktiengesellschaft | Arrangement for delivering galvanically isolated signals for a control system |
US4780631A (en) * | 1985-03-26 | 1988-10-25 | Erhardt & Leimer Gmbh | Device for the electronic control and regulation of machines |
-
1975
- 1975-07-10 CH CH905875A patent/CH594340A5/en not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0101853A2 (en) * | 1982-07-21 | 1984-03-07 | Siemens Aktiengesellschaft | Arrangement for delivering galvanically isolated signals for a control system |
EP0101853A3 (en) * | 1982-07-21 | 1987-10-14 | Siemens Aktiengesellschaft Berlin Und Munchen | Arrangement for delivering galvanically isolated signals for a control system |
US4780631A (en) * | 1985-03-26 | 1988-10-25 | Erhardt & Leimer Gmbh | Device for the electronic control and regulation of machines |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |