Modular, electronic safe-arm device

Details Modular, electronic safe-arm device Modular, electronic safe-arm device

1989-12-21

1991-11-12

Kyle, Deborah L.

Ammunition and explosives

Igniting devices and systems

Ignition or detonation circuit

102218, F23Q 722

Patent

active

050638467

ABSTRACT:
A modular electronic safe arm device (MESAD) (10) for arming and igniting an explosive is universal in application and employs a standard circuit architecture which uses application specific logic modules (12) and (14), a standard voltage control module (16), and standard high energy firing modules (18) and (20). In the preferred embodiment, the logic modules (12) and (14) are state machines using clocked sequential logic and having read-only-memories. The logic modules (12) and (14) generate dynamic arming signals at outputs (54) and (76) which cause the voltage control module (16) in conjunction with transformer (102), to convert a low voltage input (98) to a high voltage output (100). The high voltage output (100) is used to charge firing capacitors (112) and (138) in standard high energy firing modules (18) and (20). Logic module (14) generates two trigger signals at outputs (76) and (78) for activating the trigger modules (126) and (148). Charging and triggering of the high energy firing modules (18) and (20) causes explosive foil initiators (108) and (134) to ignite the explosive. Application specific interface units (40) and (86) allow the MESAD (10) to be used in many different applications.

REFERENCES:
patent: 3721886 (1973-03-01), Phinney et al.
patent: 4137850 (1979-02-01), Donner
patent: 4632032 (1986-12-01), Miller

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