Tableau comprenant des appareils de commutation d'un circuit de commande d'une installation électrique automatique

1,026,841. Transistor switching circuits. TELEMECANIQUE ELECTRIQUE. Jan. 14, 1963 [Jan. 18, 1962], No. 1670/63. Heading H3T. [Also in Divisions H1 and H2] Switching units for use in an electrical automatic control assembly (see Division H1) comprise transistorized single element switching circuits a...

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Bibliographic Details
Main Authors LUCIEN HAURY,ANDRE, CHEVALIER,MICHEL, PIERRE FIEVET,JACQUES FERNAND
Format Patent
LanguageFrench
Published 30.04.1965
Edition1
Subjects
BASIC ELECTRIC ELEMENTS
BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLYOR DISTRIBUTION OF ELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
CURRENT COLLECTORS
ELECTRICITY
GENERATION
LINE CONNECTORS
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Summary:1,026,841. Transistor switching circuits. TELEMECANIQUE ELECTRIQUE. Jan. 14, 1963 [Jan. 18, 1962], No. 1670/63. Heading H3T. [Also in Divisions H1 and H2] Switching units for use in an electrical automatic control assembly (see Division H1) comprise transistorized single element switching circuits and multiple-input AND circuits, and OR circuits. Fig. 14 shows an AND circuit comprising three transistors T 1 , T 2 , T 3 in series, the bases of which are biased by potentials applied through resistors Z 1 , Z 2 , Z 3 for stabilizing transistor operation against temperature variations. Control voltages are applied at terminals D 1 , D 2 , D 3 through resistors R 1 , R 2 , R 3 . Input terminals E 1 , E 2 , E 3 and output terminals S are duplicated. Terminals 11 are for checking operation of the transistors. Fig. 12 shows a three-input OR circuit; a control signal applied to any of terminals D 1 , D 2 , D 3 through diodes G 1 , G 2 , G 3 and resistor R to the base of transistor T renders the emitter-collector path conductive.
Bibliography:Application Number: CH19620015229