ES467568A1 - Aparato perfeccionado de vigilancia de una tension de ali- mentacion continua. - Google Patents
Aparato perfeccionado de vigilancia de una tension de ali- mentacion continua.Info
- Publication number
- ES467568A1 ES467568A1 ES467568A ES467568A ES467568A1 ES 467568 A1 ES467568 A1 ES 467568A1 ES 467568 A ES467568 A ES 467568A ES 467568 A ES467568 A ES 467568A ES 467568 A1 ES467568 A1 ES 467568A1
- Authority
- ES
- Spain
- Prior art keywords
- fail
- optically coupled
- potential
- range
- signal
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Tests Of Electronic Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/775,008 US4091292A (en) | 1977-03-07 | 1977-03-07 | Fail-safe monitor of d.c. voltage |
Publications (1)
Publication Number | Publication Date |
---|---|
ES467568A1 true ES467568A1 (es) | 1978-10-16 |
Family
ID=25103032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES467568A Expired ES467568A1 (es) | 1977-03-07 | 1978-03-04 | Aparato perfeccionado de vigilancia de una tension de ali- mentacion continua. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4091292A (es) |
CA (1) | CA1089015A (es) |
ES (1) | ES467568A1 (es) |
GB (1) | GB1569049A (es) |
NL (1) | NL7802307A (es) |
ZA (1) | ZA781192B (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4190830A (en) * | 1977-03-21 | 1980-02-26 | Essex Group, Inc. | Lamp outage indicator circuit |
DE3022314C2 (de) * | 1980-06-13 | 1984-09-20 | Toso K.K., Tokio/Tokyo | Lamellen-Jalousie |
US4550287A (en) * | 1983-08-11 | 1985-10-29 | The Boeing Company | Data bus test instrument having a tri-colored LED and indicating continuity, voltage and polarity |
DE4443862A1 (de) * | 1994-12-09 | 1996-06-27 | Pilz Gmbh & Co | Sichere Spannungsüberwachung |
SK284293B6 (sk) * | 1995-04-19 | 2005-01-03 | Gec Alsthom Acec Transport S. A. | Jednosmerný vstupný článok pre obvody zberu dát |
PT822907E (pt) * | 1995-04-19 | 2000-07-31 | Alstom Belgium Sa | Celula para entradas de corrente alternada destinada a circuitos de aquisicao de informacoes |
WO2000000835A1 (en) * | 1998-06-30 | 2000-01-06 | Koninklijke Philips Electronics N.V. | Device having processor means and having undervoltage detection means |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2883529A (en) * | 1954-03-15 | 1959-04-21 | Boeing Co | Voltage monitoring circuits |
US3159825A (en) * | 1961-05-01 | 1964-12-01 | Gen Dynamics Corp | Electronic monitoring means |
US3348132A (en) * | 1964-11-02 | 1967-10-17 | Lando K Moyer | Automatic fail-safe dual-voltage power supply circuit |
US3492589A (en) * | 1967-04-03 | 1970-01-27 | Honeywell Inc | Failsafe circuit apparatus |
US3852731A (en) * | 1973-10-12 | 1974-12-03 | Rochester Instr Syst Inc | Ac voltage sensing apparatus |
-
1977
- 1977-03-07 US US05/775,008 patent/US4091292A/en not_active Expired - Lifetime
-
1978
- 1978-02-09 GB GB5270/78A patent/GB1569049A/en not_active Expired
- 1978-02-10 CA CA296,680A patent/CA1089015A/en not_active Expired
- 1978-03-01 ZA ZA00781192A patent/ZA781192B/xx unknown
- 1978-03-02 NL NL7802307A patent/NL7802307A/xx not_active Application Discontinuation
- 1978-03-04 ES ES467568A patent/ES467568A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ZA781192B (en) | 1979-02-28 |
NL7802307A (nl) | 1978-09-11 |
CA1089015A (en) | 1980-11-04 |
US4091292A (en) | 1978-05-23 |
GB1569049A (en) | 1980-06-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19981103 |