Signal transmission control device

Abstract

Abstract PURPOSE:To secure an easy control for the signal transmission by applying the control voltage to the base of the transistor which controls the signal transmisson via constant voltage diode, at the same time increasing the dynamic range to prevent occurrence of the signal distortion. CONSTITUTION:Two units of capacitors 17 and 18 connect input terminal 15 and output terminla 16 of the AC signals in series, and the collector and the emitter of transistor 19 are connected to the middle point between capacitors 17 and 18 as well as to the earth point. Then the control voltage is applied to the base of transistor 19 via constant voltage diode 20. As a result, the signal transmission can be controlled easily, and at the same time the dynamic range can be increased to prevent occurrence of the signal distortion.

Inventors

• 👤 Masaharu Iwashita
• 👤 Hiroyuki Nagai
• 👤 Kaoru Sasabe

Bibliographic Details