DE3021288A1 - HV layered resistor providing equalisation - has several separable shunt bridge paths round turning points of meandering resistance path - Google Patents

HV layered resistor providing equalisation - has several separable shunt bridge paths round turning points of meandering resistance path

Info

Publication number
DE3021288A1
DE3021288A1 DE19803021288 DE3021288A DE3021288A1 DE 3021288 A1 DE3021288 A1 DE 3021288A1 DE 19803021288 DE19803021288 DE 19803021288 DE 3021288 A DE3021288 A DE 3021288A DE 3021288 A1 DE3021288 A1 DE 3021288A1
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DE
Germany
Prior art keywords
resistance
bridge paths
resistor
paths
meander
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE19803021288
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German (de)
Inventor
Eynollah Dipl.-Ing. 8501 Kalchreuth Rahideh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefunken Electronic GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE19803021288 priority Critical patent/DE3021288A1/en
Publication of DE3021288A1 publication Critical patent/DE3021288A1/en
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C13/00—Resistors not provided for elsewhere
    • H01C13/02—Structural combinations of resistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/22—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming
    • H01C17/24—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by removing or adding resistive material
    • H01C17/242—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by removing or adding resistive material by laser

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Manufacturing & Machinery (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Non-Adjustable Resistors (AREA)

Abstract

The high ohmic resistor for h.v. applications consists of a meandering resistive path and terminal surfaces on an insulating support member. The resistive path (2) has round its turning points several separable shunt bridge paths (23) of the same material as the resistive path. The bridge paths are in parallel. Pref., they have identical spacing. The resistive path and the bridge paths are in the form of identical narrow lines, the bridge paths extending not further than the symmetry line of the meandering path. The individual bridge paths may be separated by a laser beam. The resistor may be adjusted to a given resistive value, together with at least a further layered resistor on a flat support member. This resistor can be easily trimmed without sputtering at the trimming points.

Description

Abgleichbarer Schichtwiderstand, insbesondere Adjustable sheet resistance, in particular

für Hochspannungsanwendung. for high voltage application.

nie Erfindung betrifft einen abgleichbaren Schicht--wi«rstand, insbesondere für Hochspannungsanwendung, be¢ehend aus einer auf einem elektrisch isolierenden lt dgerkörper angeordneten mäanderförmigen Widerstandshahn und Anschlußpfaden.The invention never relates to an adjustable layer resistor, in particular for high voltage application, consisting of one on one electrically insulating Meander-shaped resistance cock and connection paths arranged according to the body.

Es sind derartige Hochspannungswiderstände bekannt, dia zur Erzielung eines relativ hohen Widerstandswertes au--einem schmalen mäanderförmigen Widerstandspfad betehen. Um derartige bekannte Widerstände auf eine gcünschte enge Toleranz abgleichen zu können, sind einige oder mehrere Flanken des Widerstandspfades breiter ausgeführt. Diese Flanken werden mit einem Laserstrahl ,mehrfach versetzt eingeschnitten, so daß die Widerstandsbahn verlängert und der-Widerstandswert erhöht wird.Such high-voltage resistors are known, which are used to achieve this a relatively high resistance value - a narrow, meandering resistance path pray. In order to adjust such known resistances to a desired close tolerance to be able to, some or more edges of the resistance path are made wider. These flanks are cut several times offset with a laser beam, see above that the resistance track is lengthened and the resistance value is increased.

infolge der Verbreiterung einiger oder mehrerer Mä.anderflanken müssen die Mäanderwindungen relativ eng nebeneinander angeordnet sein, so daß bei Hochspannungsanwendung zwischen nebeneinanderliegenden Mäanderwendepunkten eine relativ hohe Windungsfeldstärke gegeben ist, die bei Dauerbelastung zu einer unerwünschten Materialwanderung führt, wie sie beispielsweise auch in der DE-OS'27 00 946 beschrieben ist. Bei dem aus dieser Druckschrift bekannten abgleichbaren Schichtwiderstand wird mit einem Laserstrahl parallel zur Mäanderlängsachse und nicht senkrecht dazu abgeglichen.as a result of the widening of some or more meander flanks the meander turns are arranged relatively close to each other, so that in high voltage applications a relatively high winding field strength between adjacent meander turning points is given, which leads to an undesirable material migration in the event of permanent load, as described, for example, in DE-OS'27 00 946. In the off this publication known adjustable sheet resistor is with a laser beam aligned parallel to the longitudinal axis of the meander and not perpendicular to it.

Aus der FR-PS 1 241 546 ist ein elektrischer Widerstand bekannt, der als mäanderförmiger Widerstandspfad ausgebildet ist und bei dem eine Mäanderwindung durch Nebenschluß-Brückenpfade in Teilwiderstände aufgeteilt ist. Dort reichen die Brückenpfade jedoch bis zur Basis der Mäanderwindung, so daß beim Auftrennen des Basis-Brückenpfades an der Trennstelle die volle Windungsspannung anliegt. Insbesondere bei Hochspannungsanwendungen kann es daher bei dieser bekannten Ausführungsform eines Widerstandes zu Sprüh-~,scheinungen und zu Überschlägen an der Trennstelle kuiiuuen .From FR-PS 1 241 546 an electrical resistor is known which is designed as a meander-shaped resistance path and in which a meander turn is divided into partial resistances by shunt bridge paths. There are enough However, bridge paths to the base of the meander turn, so that when the Base bridge path, the full winding voltage is present at the point of separation. In particular in the case of high-voltage applications, it can therefore be used in this known embodiment resistance to spray phenomena and flashovers at the point of separation kuiiuuen.

Der Erfindung liegt die Aufgabe zugrunde, einen abgleichidi.ii.i.. Schichtwiderstand insbesondere für Hochspannungsanwendung zur Verfügung zu stellen, der im abgeglichenen stand an den Abgleichstellen nicht zum Sprühen neigt und bei dem durch relativ weit voneinander entfernte anderwindungen eine Materialwanderung zwischen benachbarten Mäanderwindungen vermieden wird.The invention is based on the object of providing a comparison idi.ii.i .. To provide sheet resistance, especially for high-voltage applications, who in the adjusted stand does not tend to spray at the adjustment points and helps material migration due to other windings that are relatively far apart from each other between adjacent meander turns is avoided.

DIese Aufgabe wird erfindungsgemäß durch die kennzeichnel,uen Merkmale des Anspruches 1 gelöst. Bevorzugte Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.According to the invention, this object is achieved by the characterizing features of claim 1 solved. Preferred developments of the invention are set out in the subclaims marked.

Die mit der Erfindung erzielten Vorteile liegen insbesondere darin, daß der insbesondere hochohmige Hochspannujigswiderstand auf enge Widerstandstoleranzen abgleichbar ist und an den Abgleich-Trennstellen infolge der dort anliegenden kleinen Spannungen nicht zum Sprühen oder Durchschlagen neigt. Ein weiterer Vorteil liegt im gleichmäßig dünnen Widerstandspfad, so daß die einzelnen Mäanderwindungen voneinander weit auseinanderliegen können, wodurch die Feldstärke zwischen den Windungen relativ gering ist und eine Widerstandsmaterialwanderung auf der Oberfläche des Trägerkörpers vermieden wird.The advantages achieved with the invention are, in particular, that the high-ohmic high-voltage resistance, in particular, has narrow resistance tolerances can be adjusted and at the adjustment separation points due to the small adjacent there Tension does not tend to spray or strike through. Another benefit lies in the evenly thin resistance path, so that the individual meander turns from each other are far apart can, reducing the field strength between the turns is relatively small and a resistance material migration on the surface of the carrier body is avoided.

Ein Ausführungsbeispiel der Erfindung zeigt Fig. 2 im Vergleich zu einem bekannten, in Fig. 1 dargestellten Widerstand.An exemplary embodiment of the invention is shown in FIG. 2 in comparison to FIG a known resistor shown in FIG.

Fig. 1 zeigt einen bekannten Hochspannungswiderstand in Form einer auf einem Trägerkörper 1 zwischen zwei Metallanschlußflächen 4 verlaufenden mäanderförmigen Widerstandsbahn 2, bei der einzelne Mäanderwindungen 21 mit Verbreiterungen 22 ausgebildet sind.Fig. 1 shows a known high voltage resistor in the form of a on a support body 1 between two metal connection surfaces 4 running meander-shaped Resistance track 2, in which individual meander turns 21 are formed with widenings 22 are.

Diese Verbreiterungen 22 werden mit einem Laserstrahl .,intereinander versetzt mit Einschnitten 3 versehen, odurch der Widerstandspfad 2 verlängert und der Widerstandswert vergrößert wird. Infolge der Verbreiterungen 22 einzelner oder mehrerer Mäanderwindungen müssen die Mäanderwindungen relativ eng nebeneinander angeordnet werden, so daß die Feldstärke zwischen benachbarten -Mäanderwindungen relativ groß ist, was zu unerwünschter Materialwanderung führen kann.These widenings 22 are with a laser beam., Into one another staggered with incisions 3, or extended by the resistance path 2 and the resistance value is increased. As a result of the widening 22 individual or If there are several meander turns, the meander turns must be relatively close to one another be arranged so that the field strength between adjacent -Meander turns is relatively large, which can lead to undesirable material migration.

Fig. 2 zeigt einen erfindungsgemäßen Hochspannungswiderstand, bestehend aus zwei auf einem ebenen Trägerkörper 1 zwischen Anschlußflächen 4 aufgedruckten Hochohmwiderständen 2. Dabei wird der Widerstandswert des rechts dargestellten, niedrigeren Widerstandes 2 durch Wähl der Widerstandspaste und der Einbrennbedingungen innerhalb der gewünschten Toleranz hergestellt.Fig. 2 shows a high-voltage resistor according to the invention, consisting of two printed on a flat support body 1 between connecting surfaces 4 High-ohmic resistances 2. The resistance value of the one shown on the right is lower resistance 2 by selecting the resistance paste and the burn-in conditions manufactured within the desired tolerance.

Der links dargestellte, höherohmige Widerstand 2 wird um seine Wendepunkte mit mehreren Nebenschluß-Brückenpfaden 23 gedruckt, die mit einem entlang der Pfeilrichtung 3 geführten Laserstrahl wahlweise aufgetrennt werden. Dadurch wird der Widerstandswert dieses, aus einem relativ schmalen Widerstandspfad aufgebauten Widerstandes 2 abgeglichen.The higher-resistance resistor 2 shown on the left is around its turning points printed with a plurality of shunt bridge paths 23 marked with one along the direction of the arrow 3 guided laser beam optionally split will. This will the resistance value of this built up from a relatively narrow resistance path Resistor 2 matched.

Claims (4)

P A T E N T A N S P R Ü C H E 3 Abgleichbarer Schichtwiderstand, insbesondere für Hochspannungsanwendung, bestehend aus einer auf einem elektrisch isolierenden Trägerkörper angeordnieten mäanderförmigen Widerstandsbahn und Anschlußflächen, d d d u r c h g e k e n n z e i c h n e t daß die mäanderförmige Widerstandsbahn (2) um ihre Wendepunkte mehrere auftrennbare Nebenschluß-Brückenpfade (23) aus dem Material der Widerstandsbahn (2) besitzt, die zueinander parallel verlaufen. P A T E N T A N S P R Ü C H E 3 Adjustable sheet resistance, especially for high voltage application, consisting of one on one electric insulating support body arranged meander-shaped resistance track and connection surfaces, d d u r c h e k e n n n z e i c h n e t that the meander-shaped resistance track (2) several separable shunt bridge paths (23) from the Has the material of the resistance track (2) which run parallel to one another. 2. Abgleichbarer Schichtwiderstand nach Anspruch 1, dadurch gekennzeichnet, daß die Brückenpfade (23) voneinander gleichweit entfernt sind. 2. Adjustable sheet resistor according to claim 1, characterized in that that the bridge paths (23) are equidistant from one another. 3. Abgleichbarer Schichtwiderstand nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, daß die Widerstandsbahn (2) und die Brückenpfade (23) gleich schmale Linien sind.3. Trimmable sheet resistor according to one of claims 1 to 2, characterized in that the resistance track (2) and the bridge paths (23) are equally narrow lines. 4. Abgleichbarer Schichtwiderstand nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Brückenpfade (23) maximal bis zur SymmetrielInie der mäanderförmigen Widerstandsbhn (2) reichen.4. Trimmable sheet resistor according to one of claims 1 to 3, characterized in that the bridge paths (23) at most up to the SymmetrielInie the meandering resistance platform (2). - h%gleichbarer Schichtwiderstand nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß einzelne Brückenpfade (23) durch einen Laserstrahl aufgetrennt sind.- h% equivalent sheet resistance according to one of claims 1 to 4, characterized in that individual bridge paths (23) are separated by a laser beam are. h, ArDgleichbarer Schichtwiderstand nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß er gemeinsam mit mindestens einem weiteren bahnförmigen Schichtwiderstand (2), der durch einen genau definierten Einbrand ohne weiteren Abgleichvorgang auf einen bestimmten Widerstandswert eingestellt ist, auf einem ebenen Trägerkörper (1) angeordnet ist.h, ArD-equivalent sheet resistor according to one of Claims 1 to 5, characterized in that it is jointly with at least one other web-shaped Sheet resistance (2), which by a precisely defined penetration without further Adjustment process is set to a specific resistance value, on a flat support body (1) is arranged.
DE19803021288 1980-06-06 1980-06-06 HV layered resistor providing equalisation - has several separable shunt bridge paths round turning points of meandering resistance path Ceased DE3021288A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803021288 DE3021288A1 (en) 1980-06-06 1980-06-06 HV layered resistor providing equalisation - has several separable shunt bridge paths round turning points of meandering resistance path

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DE19803021288 DE3021288A1 (en) 1980-06-06 1980-06-06 HV layered resistor providing equalisation - has several separable shunt bridge paths round turning points of meandering resistance path

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DE3021288A1 true DE3021288A1 (en) 1981-12-24

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0181766A1 (en) * 1984-11-14 1986-05-21 Richard E. Caddock A high-voltage, noninductive, film-type resistor, and a method of making it
US5929746A (en) * 1995-10-13 1999-07-27 International Resistive Company, Inc. Surface mounted thin film voltage divider
US6084502A (en) * 1996-03-11 2000-07-04 Matsushita Electric Industrial Co., Ltd. Resistor and method of making the same
US6111494A (en) * 1996-08-03 2000-08-29 Robert Bosch Gmbh Adjustable voltage divider produced by hybrid technology
US6292091B1 (en) * 1999-07-22 2001-09-18 Rohm Co., Ltd. Resistor and method of adjusting resistance of the same
US6642835B2 (en) * 1998-11-11 2003-11-04 Robert Bosch Gmbh Ceramic layer system and method for producing a ceramic heating device
DE10260852A1 (en) * 2002-12-23 2004-07-15 Robert Bosch Gmbh Method for matching the electrical resistance of a resistance track
WO2012116029A1 (en) 2011-02-23 2012-08-30 Miraco, Inc. Tunable resistance conductive ink circuit
DE102011121915A1 (en) * 2011-12-22 2013-06-27 Eisenmann Ag Electrode assembly and electrostatic atomizer with such

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953764A (en) * 1958-01-20 1960-09-20 Allen Bradley Co Grid configuration for film type resistor
DE1199376B (en) * 1959-12-21 1965-08-26 John G Ruckelshaus Process for the production of layer resistors with a given surface area of the layer
DE2700946A1 (en) * 1977-01-12 1978-07-13 Draloric Electronic Adjustable layer resistor formed by printing - consists of two meandering lines connected by adjacent turning points, and adjusted by cutting at opposite turning points

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953764A (en) * 1958-01-20 1960-09-20 Allen Bradley Co Grid configuration for film type resistor
DE1199376B (en) * 1959-12-21 1965-08-26 John G Ruckelshaus Process for the production of layer resistors with a given surface area of the layer
DE2700946A1 (en) * 1977-01-12 1978-07-13 Draloric Electronic Adjustable layer resistor formed by printing - consists of two meandering lines connected by adjacent turning points, and adjusted by cutting at opposite turning points

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DE-Z.: "Internationale elektronische Rundschau" 1971, Nr. 8, S. 195-199 *
DE-Z.: Funktechnik, 1974, Nr. 14, Jg. 29, S. 501-504 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0181766A1 (en) * 1984-11-14 1986-05-21 Richard E. Caddock A high-voltage, noninductive, film-type resistor, and a method of making it
US4670734A (en) * 1984-11-14 1987-06-02 Caddock Richard E Method of making a compact, high-voltage, noninductive, film-type resistor
US5929746A (en) * 1995-10-13 1999-07-27 International Resistive Company, Inc. Surface mounted thin film voltage divider
US6084502A (en) * 1996-03-11 2000-07-04 Matsushita Electric Industrial Co., Ltd. Resistor and method of making the same
US6111494A (en) * 1996-08-03 2000-08-29 Robert Bosch Gmbh Adjustable voltage divider produced by hybrid technology
US6642835B2 (en) * 1998-11-11 2003-11-04 Robert Bosch Gmbh Ceramic layer system and method for producing a ceramic heating device
US6292091B1 (en) * 1999-07-22 2001-09-18 Rohm Co., Ltd. Resistor and method of adjusting resistance of the same
DE10260852A1 (en) * 2002-12-23 2004-07-15 Robert Bosch Gmbh Method for matching the electrical resistance of a resistance track
WO2004061873A1 (en) * 2002-12-23 2004-07-22 Robert Bosch Gmbh Method for adjusting the electrical resistance of a resistance path
DE10260852B4 (en) * 2002-12-23 2011-05-05 Robert Bosch Gmbh Method for adjusting the electrical resistance of a resistance track
WO2012116029A1 (en) 2011-02-23 2012-08-30 Miraco, Inc. Tunable resistance conductive ink circuit
EP2678868A4 (en) * 2011-02-23 2018-03-28 Miraco, Inc. Tunable resistance conductive ink circuit
DE102011121915A1 (en) * 2011-12-22 2013-06-27 Eisenmann Ag Electrode assembly and electrostatic atomizer with such

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Owner name: TELEFUNKEN ELECTRONIC GMBH, 7100 HEILBRONN, DE

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