Relay separation circuit of DTL

Published:2011/4/14 2:23:00 Author:muriel | Keyword: 2N1935, Relay separation circuit , DTL | From:SeekIC

The character of the relay:coil impedance is 400Ω, action current is 55mA. In the circuit, transistor can offset and prevent the producing current to the tube. When DTL logic circuit output 0 , Q1 cut off, there is current flows go through in the LED, Q2 cut off, relay K1with no action. When DTL logic circuit output 1 , Q1 breakover, there is no current flows gothrough in the LED, Q2 breakover, The action time is connected with the mechanical response characteristics of relay.



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