| 摘要 |
An automatic bypass for studio TV operation of linear devices (noise suppressors correction, etc.) having the advantage, unlike the known devices in this field, of reacting in case of processing unit supply failures and taking into consideration the change of the output signal parameters as a result of deteriorated operation or dropping of the output signal due to defect. The system provides stable switching when there is unstable or intermittent supply which may comprise the signal transmission. The electromagnetic relay of the bypass is connected to negative and positive supply poles connected to a two-stage differential amplifier coupled to the signal output of a processing unit, and the actuation of the electromagnetic relay is actuated across a voltage translator and electronic switches connected in series, the output of the first switch is also connected to the control input of voltage translator and to ground across a capacitor.
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