ELECTRONIC TEMPORARY DEVICE OF DETONATORS AND SAFETY AND ARMING MECHANISMS Russian patent published in 2013 - IPC F42C11/06 

FIELD: electricity.

SUBSTANCE: temporary device includes a D flip-flop, an RS flip-flop, an inverting RS flip-flop, three inverters, two-input NOR logic element and a two-input OR-NAND element. The output of the reset signal former is connected to the first reset input of the RS flip-flop and through a first inverter to the AND input of the two-input OR-NAND logic element. The output of the source of the trigger signal is connected to the set input of the RS flip-flop and the first input of the two-input NOR logic element. The inverting output of the D flip-flop is connected to the first OR input of the two-input OR-NAND element, the output of which is connected to the reset input of a power divider, and through a second inverter to the reset input of the inverting RS flip-flop. The inverting output of the RS flip-flop is connected to the second OR input of the two-input OR-NAND element, the first set input of the inverting RS flip-flop, the inhibit input of the generator and combined data and set inputs of the D flip-flop, the clock input of which is connected to the output of the generator. The output of the frequency divider is connected through a third inverter to the set input of the inverting RS flip-flop, the output of which is connected to the second input of a two-input NOR logic element. The output of the two-input NOR logic element is connected to the reset input of the RS flip-flop.

EFFECT: high noise immunity and safety of the electronic temporary detonator device.

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