GB1142638A - Alternating-current capacitor - Google Patents
Alternating-current capacitorInfo
- Publication number
- GB1142638A GB1142638A GB1024366A GB1024366A GB1142638A GB 1142638 A GB1142638 A GB 1142638A GB 1024366 A GB1024366 A GB 1024366A GB 1024366 A GB1024366 A GB 1024366A GB 1142638 A GB1142638 A GB 1142638A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dielectric
- semi
- width
- capacitor
- conducting
- 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
Links
- 239000003990 capacitor Substances 0.000 title abstract 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 239000010703 silicon Substances 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 229910021607 Silver chloride Inorganic materials 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052793 cadmium Inorganic materials 0.000 abstract 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910002090 carbon oxide Inorganic materials 0.000 abstract 1
- 230000005684 electric field Effects 0.000 abstract 1
- 239000007772 electrode material Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 abstract 1
- 229910052711 selenium Inorganic materials 0.000 abstract 1
- 239000011669 selenium Substances 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 abstract 1
- 238000010301 surface-oxidation reaction Methods 0.000 abstract 1
- 229910001930 tungsten oxide Inorganic materials 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/20—Arrangements for preventing discharge from edges of electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/32—Wound capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
1,142,638. Capacitors. ROBERT BOSCH G.m.b.H. 9 March, 1966 [9 March, 1965], No. 10243/66. Heading H1M. In an A.C. capacitor comprising an electrode formed by metallizing a dielectric strip 10, the high electric field intensity normally produced at the edge 14 of the metal coating (see Fig. 1, not shown) is prevented by providing a semi-conducting band 15 extending beyond the edge, the surface resistivity of the semi-conducting band lying between the value d/# o -S r -b s <SP>2</SP>. # and 10<SP>-2</SP> times this value, wherein # is the angular frequency of an applied A.C. voltage, b s is the width of the marginal band, d is the thickness of the dielectric, and # o and # r are the absolute and relative dielectric constants of the dielectric. The width of the semi-conducting bands is preferably at least ten times the thickness of the dielectric and does not exceed a value 15b 1 .# tan 8 wherein b 1 is the width of the electrode and # tan 8 is the amount by which the losses in a capacitor with semiconducting marginal bands may exceed losses in a capacitor without such bands. The semiconducting strip may be formed by surface oxidation of the electrode material when this is e.g. zinc, silver, cadmium or silicon, or it may be of selenium, silicon, nickel, silver chloride, carbon or tungsten oxide. The semi-conducting material may extend over the whole width of the dielectric strip either over -or under the metal coating.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB0080882 | 1965-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1142638A true GB1142638A (en) | 1969-02-12 |
Family
ID=6980880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1024366A Expired GB1142638A (en) | 1965-03-09 | 1966-03-09 | Alternating-current capacitor |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1489680A1 (en) |
| GB (1) | GB1142638A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996005575A1 (en) * | 1994-08-12 | 1996-02-22 | Tetrel Limited | Coin validators |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2359431C2 (en) * | 1973-11-29 | 1983-02-24 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Process for the production of a dielectric tape provided with a metal layer for electrical capacitors |
-
1965
- 1965-03-09 DE DE19651489680 patent/DE1489680A1/en active Pending
-
1966
- 1966-03-09 GB GB1024366A patent/GB1142638A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996005575A1 (en) * | 1994-08-12 | 1996-02-22 | Tetrel Limited | Coin validators |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1489680A1 (en) | 1969-10-02 |
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