CA2190417C - Assembly board with strip conductor fuse and process for operating an electrical circuit arrangement mounted on an assembly board - Google Patents
Assembly board with strip conductor fuse and process for operating an electrical circuit arrangement mounted on an assembly board Download PDFInfo
- Publication number
- CA2190417C CA2190417C CA002190417A CA2190417A CA2190417C CA 2190417 C CA2190417 C CA 2190417C CA 002190417 A CA002190417 A CA 002190417A CA 2190417 A CA2190417 A CA 2190417A CA 2190417 C CA2190417 C CA 2190417C
- Authority
- CA
- Canada
- Prior art keywords
- conductor
- strip
- electrical
- fuse
- assembly board
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/46—Circuit arrangements not adapted to a particular application of the protective device
- H01H85/463—Circuit arrangements not adapted to a particular application of the protective device with printed circuit fuse
-
- 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
- H05K1/0286—Programmable, customizable or modifiable circuits
- H05K1/0293—Individual printed conductors which are adapted for modification, e.g. fusable or breakable conductors, printed switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/38—Means for extinguishing or suppressing arc
- H01H2085/386—Means for extinguishing or suppressing arc with magnetic or electrodynamic arc-blowing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/38—Means for extinguishing or suppressing arc
-
- 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
- H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
- H05K1/165—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor incorporating printed inductors
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09218—Conductive traces
- H05K2201/09263—Meander
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
- H05K2201/09727—Varying width along a single conductor; Conductors or pads having different widths
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10181—Fuse
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fuses (AREA)
- Structure Of Printed Boards (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention concerns an assembly board with electrical conductor strips introduced thereon and with a strip conductor fuse as well as an operating process for a circuit arrangement mounted on an assembly board. The strip conductor fuse (3a, 3c) comprises two conductor strip segments (3a, 3c) through which current passes in opposite directions and these segments are arranged at such a short distance from one another that the magnetic field arising in one conductor strip segment (3a, 3c) through which current passes operates on the electrical charge carriers flowing through the other conductor strip segment (3c, 3a) and vice versa in the case of an electrical short circuit. If an electrical short circuit occurs, the electrical charge carriers of the plasma arising due to the burning off or vaporization of strip conductor fuse (3a, 3c) are reliably removed from the region of the strip conductor fuse due to the interaction with the above-named magnetic fields and thus the short-circuit current is reliably interrupted.
Description
__ ?~ ~0~17 ASSEMBLY BOARD WITH STRIP CONDUCTOR FTJSE AND
PROCESS FOR OPERATING AN ELECTRICAL CIRCUIT ARRANGEMENT
MOUNTED ON AN ASSEMBLY HOARD
FIELD OF THE INVENTION
The invention concerns an assembly board with a strip conductor fuse and a process for operating an electrical circuit arrangement mounted on an assembly board.
HACRGROUND OF THE INVENTION
Assembly boards are known with electrical conductor strips incorporated thereon for electrical connection of component parts mounted on the assembly board, whereby at least one conductor strip is formed as a strip conductor safety device or fuse, which interrupts the connection to the electrical current source in the case of an anomalous operating condition, particularly if an electrical short circuit occurs. This conductor strip configured as the 219~J4~ 7 safety device (fuse) usually has a region with a constricted cross section, which is burned off or vaporized when an electrical short circuit occurs, so that the conductor strip is disrupted in this region. Of course, it has been shown that plasma that arises during the burning off process or during vaporization of the strip conductor fuse continues to carry the supply current. Thus, the behavior of the strip conductor fuse cannot be controlled. In order to assure a secure exclusion of the supply voltage when a short circuit occurs, this strip conductor fuse must be furnished with another safety measure.
SUMMARY OF THE INVENTION
The task of the invention is to produce an assembly board with electrical components introduced thereon, which is equipped with an improved strip conductor fuse, as well as to provide an improved operating procedure for a circuit arrangement mounted on an assembly board.
The assembly board of the invention has electrical conductor strips for the electrical connection of the components mounted on the assembly board and is equipped 219~J417 with a strip conductor fuse, which interrupts the connection to the supply voltage in the case of an anomalous operating condition and particularly if an electrical short circuit occurs. According to the invention, the strip conductor fuse is formed of two conductor strip segments with electrical current flowing in the opposite direction, and these are arranged next to each other at such a small distance that the magnetic fields proceeding from each of these strip conductor segments with current flowing through operate on the electrical charge carriers that flow in the other strip conductor segment. This provision ensures that a short circuit current due to the plasma forming during the burning off or vaporizing of the conductor strip fuse is reliably stopped, since the electrical charge carriers of this plasma are removed from the region of the strip conductor fuse by the effect of the magnetic fields produced by the oppositely directed electrical currents in the two conductor strip segments of the strip conductor fuse.
Advantageously, the minimum distance between the two conductor strip segments of the strip conductor fuse is at most 10 mm. It is thus assured that the strength of the ~~90417 above-named magnetic fields is sufficient to spin out the electrical charge carriers of the plasma. In addition, the two conductor strip segments of the strip conductor fuse advantageously run parallel to one another, so that the current flow is antiparallel in these two conductor strip segments. In this way, the repulsive effect of the above-named magnetic fields on the electrical charge carriers of the plasma is optimized. At least one of the two conductor strip segments of the strip conductor fuse advantageously has a region with a constricted cross section. This region of the strip conductor fuse is first burned off or vaporized if an electrical short circuit occurs. The sensitivity of the strip conductor fuse may be adjusted within certain limits by this constricted region.
The operating process of the invention for an electrical circuit arrangement mounted onto an assembly board is characterized by a strip conductor fuse comprised of two conductor strip segments with electrical current flowing through in opposite directions, whereby these conductor strip segments are arranged at such a small distance to one another that if an anomalous operating ~1904I7 condition occurs, and particularly if an electrical short circuit occurs, at least one region of the strip conductor fuse is vaporized into a plasma and the current flow in the plasma is interrupted by means of the interaction of the electrical charge carriers with the magnetic fields, which are produced by the currents flowing in the conductor strip segments of the strip conductor fuse. This operation permits omitting the previously used safety arrangements, such as, for example, the incorporation of a commercial safety fuse. Since the strip conductor fuse of the invention is considerably more cost favorable than a safety fuse, manufacturing costs can be reduced by its use.
HRIEF DESCRIPTION OF THE DRAWINGS
The invention will be explained in more detail in the following on the basis of a preferred example of embodiment.
Here:
Figure 1 shows a section from the layout of the assembly board of the invention according to the preferred example of embodiment;
~19~417 Figure 2 shows a circuit diagram of the components mounted on the assembly board illustrated in Figure 1.
BEST MODE FOR CARRYING OtJT THE INVENTION
The assembly board according to the preferred example of embodiment of the invention is part of an electronic operating device for electrical lamps. It is equipped with electrical conductor strips for electrical connection of the components of the electronic operating device mounted on the assembly board. The back side of the assembly board with the conductor strips arranged thereon is shown as an excerpt in Figure 1. Figure 2 shows the circuit arrangement of the components mounted on the assembly board according to the preferred example of embodiment of the invention. These components comprise components of an electronic serial connection device for operating electric lamps or bulbs.
The assembly board of the invention has two terminals 1, 2 for a mains voltage source. Two conductor strips 3, 4 run between the two mains terminals 1, 2. The first conductor strip 3 is extended from the first mains connection 1 up to a first connection 5, whereas the second 21~904~17 conductor strip 4 proceeds from the second mains terminal 2 and terminates at a second connection point 6. The entire load circuit provided with mains voltage is arranged between the two electrical connections 5 and 6, so that the entire supply current flows through the two conductor strips 3, 4 during the operation. The first conductor strip 3 is configured as a strip conductor fuse. It has two conductor strip segments 3a, 3b running parallel to one another. The supply current flows in opposite directions through these segments, i.e., in the counter or antiparallel direction.
The distance of these two conductor strips from one another is approximately 3 mm. The second conductor strip segment 3b has a region 3c with a constricted cross section. This constricted region 3c of the second conductor strip segment 3b extends over a length of approximately 6 mm. The width of the second conductor strip segment 3b amounts to approximately 1 mm, whereas the width of the constricted region 3c measures only approximately 0.2 mm.
Conductor strip segments, 3a, 3c running parallelly next to one another and through which the supply current flows, each produce a magnetic field. Since the flow _g_ ~19~417 direction of the supply current is antiparallel in the two conductor strip segments 3a, 3c, the magnetic field proceeding from conductor strip segment 3a exercises a repulsive force on the electrical charge carriers in conductor strip segment 3c. In contrast, the magnetic field arising from conductor strip segment 3c through which current passes exercises a repulsive force on the electrical charge carriers in conductor strip segment 3a.
In the case of an anomalous operating state, particularly if an electrical short circuit occurs, a high short-circuit current flows through strip conductor fuse 3a, 3c, and this leads to a burning off or vaporization of the constricted strip conductor region 3c. The plasma arising in this process conducts electricity and would thus also bear the short-circuit current. However, since the magnetic field produced by conductor strip segment 3a through which current passes effectively repels the electrical charge conductors of the plasma, these charge carriers are removed from the region of strip conductor fuse 3a, 3c, and the short-circuit current is reliably interrupted. The repulsive force acting on the electrical charge carriers of _g_ 2~~~4~1 the plasma has a square dependence on the electrical current intensity and on the reciprocal distance of the two conductor strip segments 3a, 3c. This is meaningless during normal operation, due to the small current intensity of normal operation in comparison to the short-circuit current.
The short circuit current intensity lies on the order of magnitude of 50 A and the magnetic field operating on the electrical charge carriers in the plasma has a field intensity of several millitesla when an electrical short circuit occurs. The current intensity of the supply current in normal operation, on the other hand, is two orders of magnitude smaller than the short-circuit current intensity.
Figure 2 shows in schematic representation a preferred application of the assembly board of the invention on an operating device for electrical lamps. A current-compensated filter choke is joined to connections 5, 6 by means of coils L1, L2, and a bridge rectifier GL is connected by means of a filter condenser C, and the constant voltage output of this rectifier is connected with a connection mains part 7, for example, with a half-bridge inverter with downstream-connected LC output circuit, in which at least one lamp is connected.
The invention is not limited to the example of embodiment that is explained in detail above. For example, the two conductor strip segments 3a, 3c of the strip conductor fuse need not absolutely run parallel. They may also form an acute angle with one another. Further, it is also possible to provide both conductor strip segments 3a, 3b of the strip conductor fuse with a region 3c, which is constricted in cross section.
PROCESS FOR OPERATING AN ELECTRICAL CIRCUIT ARRANGEMENT
MOUNTED ON AN ASSEMBLY HOARD
FIELD OF THE INVENTION
The invention concerns an assembly board with a strip conductor fuse and a process for operating an electrical circuit arrangement mounted on an assembly board.
HACRGROUND OF THE INVENTION
Assembly boards are known with electrical conductor strips incorporated thereon for electrical connection of component parts mounted on the assembly board, whereby at least one conductor strip is formed as a strip conductor safety device or fuse, which interrupts the connection to the electrical current source in the case of an anomalous operating condition, particularly if an electrical short circuit occurs. This conductor strip configured as the 219~J4~ 7 safety device (fuse) usually has a region with a constricted cross section, which is burned off or vaporized when an electrical short circuit occurs, so that the conductor strip is disrupted in this region. Of course, it has been shown that plasma that arises during the burning off process or during vaporization of the strip conductor fuse continues to carry the supply current. Thus, the behavior of the strip conductor fuse cannot be controlled. In order to assure a secure exclusion of the supply voltage when a short circuit occurs, this strip conductor fuse must be furnished with another safety measure.
SUMMARY OF THE INVENTION
The task of the invention is to produce an assembly board with electrical components introduced thereon, which is equipped with an improved strip conductor fuse, as well as to provide an improved operating procedure for a circuit arrangement mounted on an assembly board.
The assembly board of the invention has electrical conductor strips for the electrical connection of the components mounted on the assembly board and is equipped 219~J417 with a strip conductor fuse, which interrupts the connection to the supply voltage in the case of an anomalous operating condition and particularly if an electrical short circuit occurs. According to the invention, the strip conductor fuse is formed of two conductor strip segments with electrical current flowing in the opposite direction, and these are arranged next to each other at such a small distance that the magnetic fields proceeding from each of these strip conductor segments with current flowing through operate on the electrical charge carriers that flow in the other strip conductor segment. This provision ensures that a short circuit current due to the plasma forming during the burning off or vaporizing of the conductor strip fuse is reliably stopped, since the electrical charge carriers of this plasma are removed from the region of the strip conductor fuse by the effect of the magnetic fields produced by the oppositely directed electrical currents in the two conductor strip segments of the strip conductor fuse.
Advantageously, the minimum distance between the two conductor strip segments of the strip conductor fuse is at most 10 mm. It is thus assured that the strength of the ~~90417 above-named magnetic fields is sufficient to spin out the electrical charge carriers of the plasma. In addition, the two conductor strip segments of the strip conductor fuse advantageously run parallel to one another, so that the current flow is antiparallel in these two conductor strip segments. In this way, the repulsive effect of the above-named magnetic fields on the electrical charge carriers of the plasma is optimized. At least one of the two conductor strip segments of the strip conductor fuse advantageously has a region with a constricted cross section. This region of the strip conductor fuse is first burned off or vaporized if an electrical short circuit occurs. The sensitivity of the strip conductor fuse may be adjusted within certain limits by this constricted region.
The operating process of the invention for an electrical circuit arrangement mounted onto an assembly board is characterized by a strip conductor fuse comprised of two conductor strip segments with electrical current flowing through in opposite directions, whereby these conductor strip segments are arranged at such a small distance to one another that if an anomalous operating ~1904I7 condition occurs, and particularly if an electrical short circuit occurs, at least one region of the strip conductor fuse is vaporized into a plasma and the current flow in the plasma is interrupted by means of the interaction of the electrical charge carriers with the magnetic fields, which are produced by the currents flowing in the conductor strip segments of the strip conductor fuse. This operation permits omitting the previously used safety arrangements, such as, for example, the incorporation of a commercial safety fuse. Since the strip conductor fuse of the invention is considerably more cost favorable than a safety fuse, manufacturing costs can be reduced by its use.
HRIEF DESCRIPTION OF THE DRAWINGS
The invention will be explained in more detail in the following on the basis of a preferred example of embodiment.
Here:
Figure 1 shows a section from the layout of the assembly board of the invention according to the preferred example of embodiment;
~19~417 Figure 2 shows a circuit diagram of the components mounted on the assembly board illustrated in Figure 1.
BEST MODE FOR CARRYING OtJT THE INVENTION
The assembly board according to the preferred example of embodiment of the invention is part of an electronic operating device for electrical lamps. It is equipped with electrical conductor strips for electrical connection of the components of the electronic operating device mounted on the assembly board. The back side of the assembly board with the conductor strips arranged thereon is shown as an excerpt in Figure 1. Figure 2 shows the circuit arrangement of the components mounted on the assembly board according to the preferred example of embodiment of the invention. These components comprise components of an electronic serial connection device for operating electric lamps or bulbs.
The assembly board of the invention has two terminals 1, 2 for a mains voltage source. Two conductor strips 3, 4 run between the two mains terminals 1, 2. The first conductor strip 3 is extended from the first mains connection 1 up to a first connection 5, whereas the second 21~904~17 conductor strip 4 proceeds from the second mains terminal 2 and terminates at a second connection point 6. The entire load circuit provided with mains voltage is arranged between the two electrical connections 5 and 6, so that the entire supply current flows through the two conductor strips 3, 4 during the operation. The first conductor strip 3 is configured as a strip conductor fuse. It has two conductor strip segments 3a, 3b running parallel to one another. The supply current flows in opposite directions through these segments, i.e., in the counter or antiparallel direction.
The distance of these two conductor strips from one another is approximately 3 mm. The second conductor strip segment 3b has a region 3c with a constricted cross section. This constricted region 3c of the second conductor strip segment 3b extends over a length of approximately 6 mm. The width of the second conductor strip segment 3b amounts to approximately 1 mm, whereas the width of the constricted region 3c measures only approximately 0.2 mm.
Conductor strip segments, 3a, 3c running parallelly next to one another and through which the supply current flows, each produce a magnetic field. Since the flow _g_ ~19~417 direction of the supply current is antiparallel in the two conductor strip segments 3a, 3c, the magnetic field proceeding from conductor strip segment 3a exercises a repulsive force on the electrical charge carriers in conductor strip segment 3c. In contrast, the magnetic field arising from conductor strip segment 3c through which current passes exercises a repulsive force on the electrical charge carriers in conductor strip segment 3a.
In the case of an anomalous operating state, particularly if an electrical short circuit occurs, a high short-circuit current flows through strip conductor fuse 3a, 3c, and this leads to a burning off or vaporization of the constricted strip conductor region 3c. The plasma arising in this process conducts electricity and would thus also bear the short-circuit current. However, since the magnetic field produced by conductor strip segment 3a through which current passes effectively repels the electrical charge conductors of the plasma, these charge carriers are removed from the region of strip conductor fuse 3a, 3c, and the short-circuit current is reliably interrupted. The repulsive force acting on the electrical charge carriers of _g_ 2~~~4~1 the plasma has a square dependence on the electrical current intensity and on the reciprocal distance of the two conductor strip segments 3a, 3c. This is meaningless during normal operation, due to the small current intensity of normal operation in comparison to the short-circuit current.
The short circuit current intensity lies on the order of magnitude of 50 A and the magnetic field operating on the electrical charge carriers in the plasma has a field intensity of several millitesla when an electrical short circuit occurs. The current intensity of the supply current in normal operation, on the other hand, is two orders of magnitude smaller than the short-circuit current intensity.
Figure 2 shows in schematic representation a preferred application of the assembly board of the invention on an operating device for electrical lamps. A current-compensated filter choke is joined to connections 5, 6 by means of coils L1, L2, and a bridge rectifier GL is connected by means of a filter condenser C, and the constant voltage output of this rectifier is connected with a connection mains part 7, for example, with a half-bridge inverter with downstream-connected LC output circuit, in which at least one lamp is connected.
The invention is not limited to the example of embodiment that is explained in detail above. For example, the two conductor strip segments 3a, 3c of the strip conductor fuse need not absolutely run parallel. They may also form an acute angle with one another. Further, it is also possible to provide both conductor strip segments 3a, 3b of the strip conductor fuse with a region 3c, which is constricted in cross section.
Claims (5)
1. Assembly board with electrical conductor strips introduced thereon for the electrical connection of components mounted on the assembly board, whereby at least one conductor strip (3) is configured as a strip conductor fuse, which interrupts the connection to the electrical voltage source (1, 2) in the case of an anomalous operating condition, particularly if an electrical short circuit occurs, is hereby characterized in that the strip conductor fuse comprises two conductor strip segments (3a, 3c) through which electrical current flows in opposite directions, and the segments are arranged at such a small distance from one another that the magnetic fields arising from conductor strip segments (3a, 3c) through which current passes operate on the electrical charge carriers flowing in the other conductor strip segment (3c, 3a), so that the electrical charge carriers of the plasma that arises in the case of an electrical short circuit are removed from the region of the strip conductor fuse (3a, 3c), wherein the minimal distance between the two conductor strip segments (3a, 3b) of the strip conductor fuse amounts to a maximum of 10 mm.
2. Assembly board according to Claim 1, further characterized in that the two conductor strip segments (3a, 3b) of the strip conductor fuse run parallel next to one another, and the current flow in these conductor strip segments (3a, 3b) is antiparallel.
3. Assembly board according to Claim 1, further characterized in that at least one of the two conductor strip segments (3b) of the strip conductor fuse has a region (3c) with a constricted cross section.
4. Electrical circuit arrangement with an assembly board according to Claim 1.
5. Process for the operation of an electrical circuit arrangement mounted on an assembly board, whereby the assembly board is provided with conductor strips for the electrical connection of the electrical components of the circuit arrangement and with a strip conductor fuse, which interrupts the voltage supply of the circuit arrangement in the case of an anomalous operating condition, particularly when an electrical short circuit occurs, is hereby characterized by the fact that the strip conductor fuse is comprised of two conductor strip segments (3a, 3c) through which the electrical current flows in opposite directions, and these segments are arranged at such a short distance from one another that in the case of an anomalous operating condition, particularly when an electrical short circuit occurs, at least one region (3c) of the strip conductor fuse (3a, 3c) vaporizes into a plasma and the current flow in the plasma is interrupted by the interaction of the electrical charge carriers with the magnetic fields that are produced by the currents flowing in conductor strip segments (3a, 3c) of the strip conductor fuse, wherein the minimal distance between the two conductor strip segments (3a, 3b) of the strip conductor fuse amounts to a maximum of 10 mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19542783 | 1995-11-16 | ||
| DE19542783.1 | 1995-11-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2190417A1 CA2190417A1 (en) | 1997-05-17 |
| CA2190417C true CA2190417C (en) | 2006-06-20 |
Family
ID=7777652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002190417A Expired - Fee Related CA2190417C (en) | 1995-11-16 | 1996-11-15 | Assembly board with strip conductor fuse and process for operating an electrical circuit arrangement mounted on an assembly board |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0774887B1 (en) |
| AT (1) | ATE274286T1 (en) |
| CA (1) | CA2190417C (en) |
| DE (1) | DE59611059D1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8213148B2 (en) | 2007-04-04 | 2012-07-03 | Osram Ag | Double-sided printed circuit board comprising a strip conductor safety fuse |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10005836B4 (en) * | 2000-02-10 | 2006-10-12 | Vossloh-Schwabe Elektronik Gmbh | Printed circuit board fuse with increased safety |
| US7023307B2 (en) | 2003-11-06 | 2006-04-04 | Pratt & Whitney Canada Corp. | Electro-magnetically enhanced current interrupter |
| DE102004044683A1 (en) | 2004-09-15 | 2006-03-30 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | PCB with PCB fuse |
| DE112008001328A5 (en) * | 2007-03-19 | 2010-02-18 | Conti Temic Microelectronic Gmbh | Electronic assembly with a conductor track fuse |
| FR2963198B1 (en) * | 2010-07-21 | 2018-02-16 | Thales | PRINTED CIRCUIT HAVING PROTECTED TRACKS, CALCULATOR AND METHOD |
| CN105513917B (en) * | 2015-11-30 | 2017-04-05 | 郑州轻工业学院 | Controllable type PCB is quick break fuse |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1862872U (en) * | 1961-04-10 | 1962-11-29 | Licentia Gmbh | FUSE FUSES FOR SMALL DEVICES WITH CIRCUIT BOARDS (PRINTED CIRCUITS), IN PARTICULAR FOR SEMI-CONDUCTOR INVERTERS. |
| US3619725A (en) * | 1970-04-08 | 1971-11-09 | Rca Corp | Electrical fuse link |
| GB1466569A (en) * | 1973-10-05 | 1977-03-09 | Erie Electronics Ltd | Resistors |
| DE3723832A1 (en) * | 1987-07-18 | 1989-02-02 | Apag Elektronik Ag | Printed circuit with an integrated fuse |
| DE4309674A1 (en) * | 1993-03-25 | 1994-09-29 | Teves Gmbh Alfred | Composite fuse |
-
1996
- 1996-11-05 EP EP96117689A patent/EP0774887B1/en not_active Expired - Lifetime
- 1996-11-05 AT AT96117689T patent/ATE274286T1/en active
- 1996-11-05 DE DE59611059T patent/DE59611059D1/en not_active Expired - Lifetime
- 1996-11-15 CA CA002190417A patent/CA2190417C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8213148B2 (en) | 2007-04-04 | 2012-07-03 | Osram Ag | Double-sided printed circuit board comprising a strip conductor safety fuse |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59611059D1 (en) | 2004-09-23 |
| EP0774887A2 (en) | 1997-05-21 |
| EP0774887B1 (en) | 2004-08-18 |
| CA2190417A1 (en) | 1997-05-17 |
| ATE274286T1 (en) | 2004-09-15 |
| EP0774887A3 (en) | 1998-07-22 |
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