FR2380654A1 - Circuit de limitation de l'intensite dans les montages en parallele d'amplificateurs de puissance - Google Patents
Circuit de limitation de l'intensite dans les montages en parallele d'amplificateurs de puissanceInfo
- Publication number
- FR2380654A1 FR2380654A1 FR7703870A FR7703870A FR2380654A1 FR 2380654 A1 FR2380654 A1 FR 2380654A1 FR 7703870 A FR7703870 A FR 7703870A FR 7703870 A FR7703870 A FR 7703870A FR 2380654 A1 FR2380654 A1 FR 2380654A1
- Authority
- FR
- France
- Prior art keywords
- amplifiers
- current limiting
- threshold detector
- motor supply
- supply circuits
- 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.)
- Pending
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
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/52—Circuit arrangements for protecting such amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Amplifiers (AREA)
Abstract
L'invention concerne un circuit pour limiter l'intensité du courant dans les amplificateurs de puissance montés en parallèle du type comprenant un dispositif à seuil recevant une tension caractéristique du fonctionnement des amplificateurs et délivrant une tension de sortie lorsque ladite tension dépasse la valeur-seuil, ladite tension de sortie étant appliquée au circuit commandant la tension d'entrée des amplificateurs en vue de réduire celle-ci. Selon l'invention, le dispositif à seuil est relié à la borne d'alimentation et à la sortie des amplificateurs. Application à la commande de la tension d'induit dans les moteurs à courant continu.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7703870A FR2380654A1 (fr) | 1977-02-11 | 1977-02-11 | Circuit de limitation de l'intensite dans les montages en parallele d'amplificateurs de puissance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7703870A FR2380654A1 (fr) | 1977-02-11 | 1977-02-11 | Circuit de limitation de l'intensite dans les montages en parallele d'amplificateurs de puissance |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2380654A1 true FR2380654A1 (fr) | 1978-09-08 |
Family
ID=9186603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7703870A Pending FR2380654A1 (fr) | 1977-02-11 | 1977-02-11 | Circuit de limitation de l'intensite dans les montages en parallele d'amplificateurs de puissance |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2380654A1 (fr) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1358783A (fr) * | 1962-05-30 | 1964-04-17 | Regulator A G | Montage pour la protection d'un transistor contre un courant excessif |
FR2211811A1 (fr) * | 1972-12-22 | 1974-07-19 | Allis Chalmers | |
FR2270705A1 (fr) * | 1974-05-08 | 1975-12-05 | Boehringer Andreas |
-
1977
- 1977-02-11 FR FR7703870A patent/FR2380654A1/fr active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1358783A (fr) * | 1962-05-30 | 1964-04-17 | Regulator A G | Montage pour la protection d'un transistor contre un courant excessif |
FR2211811A1 (fr) * | 1972-12-22 | 1974-07-19 | Allis Chalmers | |
FR2270705A1 (fr) * | 1974-05-08 | 1975-12-05 | Boehringer Andreas |
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