TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
CLASS-B OPERATION [1 record]
Record 1 - internal organization data 2009-11-19
Record 1, English
Record 1, Subject field(s)
- Electrical Circuits and Circuit Breakers
- Electronics
Record 1, Main entry term, English
- class-B operation
1, record 1, English, class%2DB%20operation
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- class B operation 2, record 1, English, class%20B%20operation
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
[The] operation of an active device which is biased almost to output-current cut-off so that current flows only during one half of each cycle of sinusoidal input signal, i.e. the angle of flow is 180°. 3, record 1, English, - class%2DB%20operation
Record number: 1, Textual support number: 1 OBS
[The class-B] mode of operation ... is very efficient because the mean current of the active device is directly proportional to the signal amplitude and is almost zero for zero input signal. The output signal is ... a reproduction of only one half of each cycle of input signal but linear amplification is possible by using two class-B stages in push-pull operation and most of the output stages in transistor amplifiers and receivers are of this type. 3, record 1, English, - class%2DB%20operation
Record number: 1, Textual support number: 2 OBS
The theoretical efficiency of a class-B stage (measured by the ratio of the output power to the power taken from the supply) is 78% and efficiencies approaching this value can be obtained in practice. 3, record 1, English, - class%2DB%20operation
Record 1, French
Record 1, Domaine(s)
- Circuits électriques et coupe-circuits
- Électronique
Record 1, Main entry term, French
- fonctionnement en classe B
1, record 1, French, fonctionnement%20en%20classe%20B
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
L'amplification d'un signal à enveloppe variable par un TEC [transistor à effet de champ] fonctionnant en classe A résultent de faibles performances en rendement. Le fonctionnement en classe B permet une forte amélioration du rendement mais au détriment d'une réduction du gain en puissance. La classe A permet de conserver le gain de la classe A en permettant d'atteindre un niveau de rendement pratiquement égal à celui obtenu en classe B. 2, record 1, French, - fonctionnement%20en%20classe%20B
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Circuitos eléctricos e interruptores automáticos
- Electrónica
Record 1, Main entry term, Spanish
- funcionamiento en clase B
1, record 1, Spanish, funcionamiento%20en%20clase%20B
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
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