US2279746A - Alternating electric current rectifier of the selenium type - Google Patents
Alternating electric current rectifier of the selenium type Download PDFInfo
- Publication number
- US2279746A US2279746A US363010A US36301040A US2279746A US 2279746 A US2279746 A US 2279746A US 363010 A US363010 A US 363010A US 36301040 A US36301040 A US 36301040A US 2279746 A US2279746 A US 2279746A
- Authority
- US
- United States
- Prior art keywords
- electric current
- alternating electric
- selenium
- current rectifier
- selenium type
- 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 - Lifetime
Links
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 title description 9
- 229910052711 selenium Inorganic materials 0.000 title description 9
- 239000011669 selenium Substances 0.000 title description 9
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229910052716 thallium Inorganic materials 0.000 description 3
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910000925 Cd alloy Inorganic materials 0.000 description 1
- CSBHIHQQSASAFO-UHFFFAOYSA-N [Cd].[Sn] Chemical compound [Cd].[Sn] CSBHIHQQSASAFO-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D48/00—Individual devices not covered by groups H10D1/00 - H10D44/00
- H10D48/01—Manufacture or treatment
- H10D48/04—Manufacture or treatment of devices having bodies comprising selenium or tellurium in uncombined form
- H10D48/047—Application of an electrode to the exposed surface of the selenium or tellurium after the selenium or tellurium has been applied to foundation plates
Definitions
- This invention relates to alternating electric current rectifiers of the selenium type comprising a base plate or support provided with a layer or coating of selenium which may contain other substances or compounds of selenium, a counter electrode being applied to the surface of the selenium layer.
- the invention further relates to rectifiers of the character above indicated in which a counter electrode is utilised composed principally of tin, cadmium or an alloy oi these metals sprayed or otherwise deposited on the surface of the selenium layer or coating.
- the counter electrode contains a relatively .small quantity of thallium added to the metal or alloy of which the counter electrode is composed as a result of which the ultimate resistance characteristics of the rectifier are found to be considerably improved.
- the invention is of particular advantage in cases in which an electric forming process is tioned which may evidently be varied without.
- An alternating electric current rectifier of the kind described comprising a base plate provided with a layer of selenium and a counter electrodecomposed principally of tin, cadmium or an alloy of these metals sprayed or otherwise deposited on the surface of the selenium layer or coating in which the counter electrode contains a relatively small quantity of thallium added to the metal or alloy of which the counter electrode is composed, for the purpose specified.
Landscapes
- Coating By Spraying Or Casting (AREA)
- Electrolytic Production Of Metals (AREA)
- Thermistors And Varistors (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Electrodes Of Semiconductors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB27862/39A GB534043A (en) | 1939-10-13 | 1939-10-13 | Improvements relating to alternating electric current rectifiers of the selenium type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2279746A true US2279746A (en) | 1942-04-14 |
Family
ID=10266512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US363010A Expired - Lifetime US2279746A (en) | 1939-10-13 | 1940-10-26 | Alternating electric current rectifier of the selenium type |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2279746A (en(2012)) |
| BE (1) | BE466860A (en(2012)) |
| CH (1) | CH258123A (en(2012)) |
| FR (1) | FR932206A (en(2012)) |
| GB (1) | GB534043A (en(2012)) |
| NL (1) | NL62048C (en(2012)) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2437336A (en) * | 1944-03-02 | 1948-03-09 | Union Switch & Signal Co | Alternating electric current rectifier |
| US2444430A (en) * | 1943-07-13 | 1948-07-06 | Fed Telephone & Radio Corp | Metal rectifier element |
| US2458013A (en) * | 1944-03-04 | 1949-01-04 | Asea Ab | Selenium rectifier element and method of manufacturing same |
| US2787745A (en) * | 1951-12-20 | 1957-04-02 | Int Standard Electric Corp | Counter electrode for dry disk type rectifiers |
| US2858239A (en) * | 1956-03-13 | 1958-10-28 | Siemens Ag | Method for producing selenium rectifiers |
| US2887411A (en) * | 1955-06-07 | 1959-05-19 | Siemens Ag | Method of producing selenium rectifiers |
| US2908592A (en) * | 1939-01-22 | 1959-10-13 | Int Standard Electric Corp | Method of producing a selenium rectifier |
| US3599058A (en) * | 1968-04-26 | 1971-08-10 | Siemens Ag | Selenium rectifier plate for use as an overvoltage diverter |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE908043C (de) * | 1943-02-03 | 1954-04-01 | Siemens Ag | Verfahren zur Herstellung von Selengleichrichtern, vorzugsweise solcher mit Leichtmetall-Traegerelektroden |
| DE967323C (de) * | 1943-08-06 | 1957-11-07 | Siemens Ag | Verfahren zur Herstellung von Selengleichrichtern, deren Deckelektrode Thallium in geringer Menge zugesetzt ist |
| DE932812C (de) * | 1948-10-02 | 1955-09-08 | Siemens Ag | Verfahren zur Herstellung von Trockengleichrichtern, insbesondere Selengleichrichtern |
| DE973817C (de) * | 1951-03-05 | 1960-06-15 | Licentia Gmbh | Verfahren zur Herstellung eines Trockengleichrichters |
| US2762953A (en) * | 1951-05-15 | 1956-09-11 | Sylvania Electric Prod | Contact rectifiers and methods |
-
0
- NL NL62048D patent/NL62048C/xx active
- BE BE466860D patent/BE466860A/xx unknown
-
1939
- 1939-10-13 GB GB27862/39A patent/GB534043A/en not_active Expired
-
1940
- 1940-10-26 US US363010A patent/US2279746A/en not_active Expired - Lifetime
-
1946
- 1946-05-29 CH CH258123D patent/CH258123A/de unknown
- 1946-08-13 FR FR932206D patent/FR932206A/fr not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2908592A (en) * | 1939-01-22 | 1959-10-13 | Int Standard Electric Corp | Method of producing a selenium rectifier |
| US2444430A (en) * | 1943-07-13 | 1948-07-06 | Fed Telephone & Radio Corp | Metal rectifier element |
| US2437336A (en) * | 1944-03-02 | 1948-03-09 | Union Switch & Signal Co | Alternating electric current rectifier |
| US2458013A (en) * | 1944-03-04 | 1949-01-04 | Asea Ab | Selenium rectifier element and method of manufacturing same |
| US2787745A (en) * | 1951-12-20 | 1957-04-02 | Int Standard Electric Corp | Counter electrode for dry disk type rectifiers |
| US2887411A (en) * | 1955-06-07 | 1959-05-19 | Siemens Ag | Method of producing selenium rectifiers |
| US2858239A (en) * | 1956-03-13 | 1958-10-28 | Siemens Ag | Method for producing selenium rectifiers |
| US3599058A (en) * | 1968-04-26 | 1971-08-10 | Siemens Ag | Selenium rectifier plate for use as an overvoltage diverter |
Also Published As
| Publication number | Publication date |
|---|---|
| GB534043A (en) | 1941-02-26 |
| CH258123A (de) | 1948-11-15 |
| BE466860A (en(2012)) | |
| FR932206A (fr) | 1948-03-16 |
| NL62048C (en(2012)) |
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