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Machine translation
1. (WO1980001224) AMPLITUDE CONTROL CIRCUITS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001224    International Application No.:    PCT/JP1978/000040
Publication Date: 12.06.1980 International Filing Date: 05.12.1978
IPC:
H03G 3/20 (2006.01), H03L 5/00 (2006.01)
Applicants:
Inventors:
Priority Data:
JP78/00040 05.12.1978 WO
Title (EN) AMPLITUDE CONTROL CIRCUITS
(FR) CIRCUIT DE COMMANDE D"AMPLITUDE
Abstract: front page image
(EN)This amplitude control circuit includes a vector composition circuit (18) for generating a cosine wave signal (e3) from a sine wave signal (e1), and a control signal generator circuit (20) for generating, from both sine wave signal (e1) and cosine wave signal (e3), a control signal (e4) which is substantially free from ripple. The direct-current level of the control signal (e4) may vary in proportion to the amplitude of the sine wave signal (e1), but be out of relation to the frequency of the sine wave signal (e1). The amplification of an amplification control circuit (12) is controlled by the control signal (e4) so that the oscillation output signal (e1) form an oscillation circuit (16) is kept constant.
(FR)Ce circuit de commande d"amplitude comprend un circuit de composition de vecteurs (18) pour produire un signal d"onde en cosinus (e3) a partir d"un signal d"onde en sinus (e1), et un circuit generateur de signaux de commande (20) pour produire, a la fois a partir du signal d"onde en sinus (e1) et du signal d"onde en cosinus (e3), un signal de commande (e4) qui est sensiblement exempt d"ondulations. L"intensite du courant continus du signal de commande (e4) peut varier proportionnellement a l"amplitude du signal d"onde en sinus (e1), mais n"est pas en relation avec la frequence du signal d"onde en sinus (e1). L"amplification d"un circuit de commande d"amplification (12) est commandee par le signal de commande (e4) de sorte que le signal de sorte d"oscillation (e1) provenant d"un circuit d"oscillation (16) soit maintenu constant.
Designated States:
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)