| 摘要 |
System for controlling switching of channels and circuits in an electronic oscilloscope, including a bistable trigger with shorted setting inputs PR and CLR, connected with a controlling inputs of the keying system between the input amplifiers and the adding amplifier, and the clock input CK of the trigger is connected alternatively with the time generator and astable block generator and is also connected with the input of the binary clock counter with a level of division one higher than the number of channels of the oscilloscope, whilst the output of the binary clock counter is connected amongst others via an additional amplifier with a control adding amplifier, whilst the electric locking of the work of the binary counter is realised via a serial connection with contact switches of various work profiles, in accordance with patent nr. 131 111, in particular, both outputs OQ and Q of the bistable trigger (16) are connected via a dual input digital elements (5) and (6) type AND with control inputs (4) of the keying system (1), whereby the second input of the digital elements (5) and (6) AND type are connected with each other and the negated output OQ of the additional bistable trigger (23), of which the clock input CK is connected with the input (20) of the binary clock counter (21), and the setting input J is connected with the output (22) of the binary counter (21)and via an additional adding three-way digital element (27) type NAND with shorted setting inputs PR and CLR of the bistable trigger (16)...<IMAGE>
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