AU498894B2 - Failsafe time delay for relays - Google Patents
Failsafe time delay for relaysInfo
- Publication number
- AU498894B2 AU498894B2 AU82569/75A AU8256975A AU498894B2 AU 498894 B2 AU498894 B2 AU 498894B2 AU 82569/75 A AU82569/75 A AU 82569/75A AU 8256975 A AU8256975 A AU 8256975A AU 498894 B2 AU498894 B2 AU 498894B2
- Authority
- AU
- Australia
- Prior art keywords
- relays
- time delay
- failsafe time
- failsafe
- delay
- 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
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
- H03K17/601—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors using transformer coupling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
- H01H47/18—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for introducing delay in the operation of the relay
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Relay Circuits (AREA)
- Emergency Protection Circuit Devices (AREA)
- Pulse Circuits (AREA)
- Electronic Switches (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7423001A FR2277426A1 (en) | 1974-07-02 | 1974-07-02 | Delay circuit for safety relays - has pulse shaping circuit with capacitor controlled by transistor |
| FRFR74.23001 | 1974-07-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU8256975A AU8256975A (en) | 1977-01-06 |
| AU498894B2 true AU498894B2 (en) | 1979-03-29 |
Family
ID=9140787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU82569/75A Expired AU498894B2 (en) | 1974-07-02 | 1975-06-30 | Failsafe time delay for relays |
Country Status (8)
| Country | Link |
|---|---|
| AU (1) | AU498894B2 (en) |
| BE (1) | BE830864A (en) |
| BR (1) | BR7504052A (en) |
| CA (1) | CA1045241A (en) |
| ES (1) | ES438374A1 (en) |
| FR (1) | FR2277426A1 (en) |
| LU (1) | LU72867A1 (en) |
| ZA (1) | ZA754198B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2524738B1 (en) * | 1982-04-02 | 1986-05-16 | Jeumont Schneider | TIMING CIRCUIT WITH INTRINSIC SAFETY |
| WO2021211136A1 (en) * | 2020-04-17 | 2021-10-21 | Szuster Holdings Llc | Ophthalmic portable laser slit lamp and method for eye inspection |
-
1974
- 1974-07-02 FR FR7423001A patent/FR2277426A1/en active Granted
-
1975
- 1975-06-10 ES ES438374A patent/ES438374A1/en not_active Expired
- 1975-06-27 BR BR5203/75D patent/BR7504052A/en unknown
- 1975-06-30 CA CA230,433A patent/CA1045241A/en not_active Expired
- 1975-06-30 LU LU72867A patent/LU72867A1/xx unknown
- 1975-06-30 AU AU82569/75A patent/AU498894B2/en not_active Expired
- 1975-07-01 ZA ZA00754198A patent/ZA754198B/en unknown
- 1975-07-01 BE BE1006758A patent/BE830864A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU8256975A (en) | 1977-01-06 |
| LU72867A1 (en) | 1975-10-08 |
| FR2277426A1 (en) | 1976-01-30 |
| CA1045241A (en) | 1978-12-26 |
| BE830864A (en) | 1975-11-03 |
| BR7504052A (en) | 1976-06-29 |
| ES438374A1 (en) | 1977-01-16 |
| FR2277426B1 (en) | 1976-12-24 |
| ZA754198B (en) | 1976-06-30 |
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