Manual and program-controlled dual-purpose step attenuator
A step attenuator, dual-purpose technology, applied in the direction of motor generator control, electric/electric converter, motor generator/starter, etc., can solve the problem that the attenuator cannot be controlled manually and program-controlled, and achieves a novel structure, The effect of high attenuation accuracy and convenient use
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[0018] The present invention is specifically described below in conjunction with accompanying drawing:
[0019] combine figure 1 , a manual and program-controlled dual-purpose step attenuator, including a program-controlled mechanism and a manual mechanism.
[0020] Among them, the program-controlled mechanism includes a relay 1 and an attenuation component. The relay 1 has a magnetic holding function. The circuit control board 2 is connected to the relay 1. The center of the relay 1 is provided with an iron core 3 passing through the relay. The circuit control board 2 can control the iron The core 3 moves up and down in the relay, the lower end of the iron core 3 is fixedly connected with two push rods 4 , and the lower end of the push rod 4 is connected with a transmission line 5 . The attenuation component includes an upper transmission substrate 6 and a lower attenuation sheet 7 , and the transmission line 5 is located between the transmission substrate 6 and the attenuat...
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