GB1387379A - Circuit arrangement for limiting the voltage fed to a load - Google Patents
Circuit arrangement for limiting the voltage fed to a loadInfo
- Publication number
- GB1387379A GB1387379A GB1308573A GB1308573A GB1387379A GB 1387379 A GB1387379 A GB 1387379A GB 1308573 A GB1308573 A GB 1308573A GB 1308573 A GB1308573 A GB 1308573A GB 1387379 A GB1387379 A GB 1387379A
- Authority
- GB
- United Kingdom
- Prior art keywords
- common point
- limiting
- diode
- load
- voltage fed
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/008—Intrinsically safe circuits
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
1387379 Limiters BROWN BOVERI & CIE AG 19 March 1973 [18 March 1972] 13085/73 Heading H3T [Also in Division H2] In an intrisically safe circuit 14 for limiting the voltage fed to a load in an explosive environment four diodes 16-19 are connected in ring formation, two, 17, 19, being connected together by their anodes and the other two, 16, 18, by their cathodes; A Zener diode 13 is connected at its cathode to the common point 27 of the diode cathodes and at its anode to the common point 28 of the diode anodes, while the output is taken from the opposite points 22, 23 on the diode ring. In the embodiment, the input is applied at terminal 10 and reaches common point 22 via a fuse or circuit breaker 21, and output terminal 25 is fed via series resistors 12, 24, a second limiting circuit 20 being connected to the common point of the resistors.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722213243 DE2213243B2 (en) | 1972-03-18 | 1972-03-18 | Circuit arrangement for voltage limitation |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1387379A true GB1387379A (en) | 1975-03-19 |
Family
ID=5839358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1308573A Expired GB1387379A (en) | 1972-03-18 | 1973-03-19 | Circuit arrangement for limiting the voltage fed to a load |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2213243B2 (en) |
GB (1) | GB1387379A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4246621A (en) * | 1977-07-15 | 1981-01-20 | Yuken Kogyo Company Limited | Energizing circuit for solenoid valve |
US4389695A (en) * | 1981-02-09 | 1983-06-21 | Carpenter Jr Roy B | Equipment for protecting electronic equipment and personnel against inadvertent occurrence of extended or transient high voltages and method |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8722680D0 (en) * | 1987-09-26 | 1987-11-04 | Measurement Tech Ltd | Electrical safety barriers |
CA1307315C (en) * | 1988-12-08 | 1992-09-08 | Francis Yun-Tai Hung | Telephone protection circuit |
-
1972
- 1972-03-18 DE DE19722213243 patent/DE2213243B2/en not_active Ceased
-
1973
- 1973-03-19 GB GB1308573A patent/GB1387379A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4246621A (en) * | 1977-07-15 | 1981-01-20 | Yuken Kogyo Company Limited | Energizing circuit for solenoid valve |
US4389695A (en) * | 1981-02-09 | 1983-06-21 | Carpenter Jr Roy B | Equipment for protecting electronic equipment and personnel against inadvertent occurrence of extended or transient high voltages and method |
Also Published As
Publication number | Publication date |
---|---|
DE2213243A1 (en) | 1973-09-20 |
DE2213243B2 (en) | 1978-03-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |