TIMING RELAY FOR PYROTECHNICS EXPLOSION Russian patent published in 2016 - IPC F42D1/55 

FIELD: electricity.

SUBSTANCE: timing relay for pyrotechnics explosion comprises n-channel pulse generator, n electronic switches, n diodes, resistor and power amplifier, which output is coupled to winding of an electromagnetic relay having n groups of contacts. Normally open contact of each group of contacts is the output for the respective channel of the timing relay. Switching contact of each group of contacts via the respective electronic switch is coupled to the first power supply busbar and normally closed contact via the respective diode with the first output of the resistor, which second output is connected to the second power supply busbar, control input of each electronic switch is coupled to output of the respective channels of pulse generator, which additional channel is connected to the power amplifier input and its data input is coupled to the first output of the resistor.

EFFECT: improved accuracy in time of output pulse delivery and improved reliability of the device.

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