FR2421510A1 - Amplificateur isolateur - Google Patents
Amplificateur isolateurInfo
- Publication number
- FR2421510A1 FR2421510A1 FR7907968A FR7907968A FR2421510A1 FR 2421510 A1 FR2421510 A1 FR 2421510A1 FR 7907968 A FR7907968 A FR 7907968A FR 7907968 A FR7907968 A FR 7907968A FR 2421510 A1 FR2421510 A1 FR 2421510A1
- Authority
- FR
- France
- Prior art keywords
- amplifier
- stage
- demodulator
- supply
- input
- 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.)
- Granted
Links
- 238000005259 measurement Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/38—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers
- H03F3/387—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
L'invention concerne les amplificateurs de mesure. Un amplificateur isolateur comprend essentiellement un étage d'entrée qui est équipé d'un amplificateur d'entrée 2, d'un modulateur 4 et d'un démodulateur 6; un étage de sortie qui est équipé d'un amplificateur de sortie 8 et d'un démodulateur 10; et un étage d'alimentation qui comprend un générateur d'impulsions 12. Cette configuration assure une excellente séparation entre les courants de signal et les courants d'alimentation. Application à l'instrumentation électronique.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/891,552 US4152660A (en) | 1978-03-30 | 1978-03-30 | Isolation amplifier |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2421510A1 true FR2421510A1 (fr) | 1979-10-26 |
FR2421510B1 FR2421510B1 (fr) | 1987-09-11 |
Family
ID=25398397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7907968A Expired FR2421510B1 (fr) | 1978-03-30 | 1979-03-29 | Amplificateur isolateur |
Country Status (5)
Country | Link |
---|---|
US (1) | US4152660A (fr) |
JP (1) | JPS54136262A (fr) |
DE (1) | DE2912693A1 (fr) |
FR (1) | FR2421510B1 (fr) |
GB (1) | GB2018077B (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4286225A (en) * | 1979-12-31 | 1981-08-25 | Analog Devices, Incorporated | Isolation amplifier |
US4506230A (en) * | 1983-11-07 | 1985-03-19 | Acrotechnology Corporation | Isolation circuit |
US5534808A (en) * | 1992-01-31 | 1996-07-09 | Konica Corporation | Signal delay method, signal delay device and circuit for use in the apparatus |
DE4338083C1 (de) * | 1993-11-08 | 1995-06-08 | Gruendl & Hoffmann | Treiberschaltung |
DE19949389C1 (de) * | 1999-10-13 | 2001-02-01 | Gruendl & Hoffmann | Ansteuerschaltung |
US7557655B2 (en) * | 2007-11-05 | 2009-07-07 | Schweitzer Engineering Laboratories, Inc. | Systems and methods for isolating an analog signal |
US7889041B2 (en) * | 2007-11-05 | 2011-02-15 | Schweitzer Engineering Laboratories, Inc. | Systems and methods for forming an isolated transformer |
CN104917387A (zh) * | 2015-06-23 | 2015-09-16 | 杭州中恒派威电源有限公司 | 适用于led驱动电源的反激拓扑倍压电路 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2215302A1 (de) * | 1972-03-29 | 1973-10-18 | Hartmann & Braun Ag | Schaltungsanordnung zur verstaerkung und trennung von gleich- und wechselstroemen oder -spannungen |
US4030041A (en) * | 1975-08-28 | 1977-06-14 | Honeywell Inc. | Analog isolator |
US4066974A (en) * | 1976-07-23 | 1978-01-03 | The Birtcher Corporation | Isolation amplifier |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3754193A (en) * | 1971-04-19 | 1973-08-21 | C Reinhard | Input bias and signal conditioning circuit for differential amplifiers |
US3988690A (en) * | 1973-10-04 | 1976-10-26 | Tektronix, Inc. | Amplifier circuit having a floating input stage |
-
1978
- 1978-03-30 US US05/891,552 patent/US4152660A/en not_active Expired - Lifetime
-
1979
- 1979-03-29 FR FR7907968A patent/FR2421510B1/fr not_active Expired
- 1979-03-29 GB GB7910933A patent/GB2018077B/en not_active Expired
- 1979-03-30 DE DE19792912693 patent/DE2912693A1/de active Granted
- 1979-03-30 JP JP3824879A patent/JPS54136262A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2215302A1 (de) * | 1972-03-29 | 1973-10-18 | Hartmann & Braun Ag | Schaltungsanordnung zur verstaerkung und trennung von gleich- und wechselstroemen oder -spannungen |
US4030041A (en) * | 1975-08-28 | 1977-06-14 | Honeywell Inc. | Analog isolator |
US4066974A (en) * | 1976-07-23 | 1978-01-03 | The Birtcher Corporation | Isolation amplifier |
Non-Patent Citations (1)
Title |
---|
ELECTRONICS INTERNATIONAL, vol. 51, no. 15, 20 juillet 1978, New York (US) * |
Also Published As
Publication number | Publication date |
---|---|
JPS54136262A (en) | 1979-10-23 |
US4152660A (en) | 1979-05-01 |
DE2912693C2 (fr) | 1991-06-20 |
DE2912693A1 (de) | 1979-10-04 |
GB2018077B (en) | 1982-06-23 |
GB2018077A (en) | 1979-10-10 |
FR2421510B1 (fr) | 1987-09-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |