Parabolic signal generator

G - Physics – 09 – G

Patent

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Details

G09G 1/04 (2006.01) H03K 4/04 (2006.01) H04N 3/16 (2006.01)

Patent

CA 2073392

In a parabolic signal generator, a sync pulse is applied to a saw-tooth wave generation circuit, the output of the saw-tooth wave generation circuit is entered to an absolute value circuit, the output of the absolute value circuit is entered to a logarithmic amplifier, the output of the logarithmic amplifier is entered to a linear amplifier, and the output of the linear amplifier is entered to an antilogarithmic amplifier. The absolute value circuit, logarithmic amplifier, linear amplifier and antilogarithmic amplifier are powered by a single-voltage power source, and these circuit and appliers have reference input terminals supplied with a common bias voltage.

Dans un générateur de signal parabolique, une impulsion de synchronisation est appliquée à un circuit générateur d'ondes en dents de scie, dont la sortie est transmise à un circuit à valeur absolue. La sortie de ce dernier est transmise à un amplificateur logarithmique, dont la sortie est transmise à un amplificateur linéaire. La sortie de l'amplificateur linéaire est transmise à un amplificateur antilogarithmique. Le circuit à valeur absolue, l'amplificateur logarithmique, l'amplificateur linéaire et l'amplificateur antilogarithmique sont alimentés par une source à tension simple, et ils ont des bornes d'entrée de référence soumises à une tension de polarisation commune.

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