MX144507A - Mejoras a un aparato de funcion de logica con falla sin peligro - Google Patents
Mejoras a un aparato de funcion de logica con falla sin peligroInfo
- Publication number
- MX144507A MX144507A MX174340A MX17434078A MX144507A MX 144507 A MX144507 A MX 144507A MX 174340 A MX174340 A MX 174340A MX 17434078 A MX17434078 A MX 17434078A MX 144507 A MX144507 A MX 144507A
- Authority
- MX
- Mexico
- Prior art keywords
- failure
- function device
- logic function
- failure logic
- logic
- Prior art date
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
- H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
- H03K17/795—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors
- H03K17/7955—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors using phototransistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/007—Fail-safe circuits
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Electronic Switches (AREA)
- Logic Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/823,482 US4179629A (en) | 1977-08-10 | 1977-08-10 | Failsafe logic function apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX144507A true MX144507A (es) | 1981-10-21 |
Family
ID=25238888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX174340A MX144507A (es) | 1977-08-10 | 1978-07-28 | Mejoras a un aparato de funcion de logica con falla sin peligro |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4179629A (es) |
| JP (1) | JPS5440554A (es) |
| BR (1) | BR7805005A (es) |
| CA (1) | CA1118503A (es) |
| ES (1) | ES472449A1 (es) |
| GB (1) | GB2002612B (es) |
| MX (1) | MX144507A (es) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5550117A (en) * | 1978-10-06 | 1980-04-11 | Fanuc Ltd | Led light source device for pulse encoder |
| US4328541A (en) * | 1980-05-23 | 1982-05-04 | American Standard Inc. | Fail-safe digital comparator |
| CA1215179A (en) * | 1983-02-28 | 1986-12-09 | Westinghouse Electric Corporation | Versatile input circuit for sensing the status of a voltage input over a wide range of voltage levels and waveforms |
| GB2138229B (en) * | 1983-04-08 | 1987-05-13 | Gec General Signal Ltd | Opto-isolator arrangement |
| JPS60242723A (ja) * | 1984-05-17 | 1985-12-02 | Nec Corp | 光スイツチ回路 |
| JPS62172818A (ja) * | 1986-01-27 | 1987-07-29 | Matsushita Electric Works Ltd | 絶縁アンド回路 |
| DE4025888C2 (de) * | 1990-08-16 | 2000-08-31 | Elan Schaltelemente Gmbh & Co | Schaltungsanordnung mit bei Bauelementeausfällen einen vorgegebenen Signalzustand aufweisenden Ausgang |
| US5189307A (en) * | 1992-03-13 | 1993-02-23 | Empi, Inc. | Isolated current mirror with optical insulator generating feedback signal |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1264513C2 (de) * | 1963-11-29 | 1973-01-25 | Texas Instruments Inc | Bezugspotentialfreier gleichstromdifferenzverstaerker |
| US3486029A (en) * | 1965-12-29 | 1969-12-23 | Gen Electric | Radiative interconnection arrangement |
| US3826930A (en) * | 1973-06-05 | 1974-07-30 | Westinghouse Electric Corp | Fail-safe optically coupled logic networks |
| US3975643A (en) * | 1974-01-23 | 1976-08-17 | Westinghouse Air Brake Company | Fail-safe opto-electronic phase inverting circuits |
| US3995173A (en) * | 1974-05-30 | 1976-11-30 | General Signal Corporation | Solid state fail-safe logic system |
-
1977
- 1977-08-10 US US05/823,482 patent/US4179629A/en not_active Expired - Lifetime
-
1978
- 1978-07-24 CA CA000307933A patent/CA1118503A/en not_active Expired
- 1978-07-28 MX MX174340A patent/MX144507A/es unknown
- 1978-08-04 BR BR7805005A patent/BR7805005A/pt unknown
- 1978-08-08 ES ES472449A patent/ES472449A1/es not_active Expired
- 1978-08-10 GB GB7832894A patent/GB2002612B/en not_active Expired
- 1978-08-10 JP JP9675878A patent/JPS5440554A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| BR7805005A (pt) | 1979-04-17 |
| GB2002612B (en) | 1982-05-19 |
| JPS5440554A (en) | 1979-03-30 |
| US4179629A (en) | 1979-12-18 |
| CA1118503A (en) | 1982-02-16 |
| GB2002612A (en) | 1979-02-21 |
| ES472449A1 (es) | 1979-10-01 |
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