Ammunition and explosives – Igniting devices and systems – Ignition or detonation circuit
Patent
1993-11-30
1995-09-05
Pihulic, Daniel T.
Ammunition and explosives
Igniting devices and systems
Ignition or detonation circuit
1022021, F42C 1500
Patent
active
054471036
ABSTRACT:
A control signal transmission circuit for transmitting a control signal to a controllable device (21) to control the controllable device (21) and to protect the controllable device (21) against control by component failure generated signals. The circuit comprises a signal generating circuit (11) to generate in an output path (19) an amplitude varying signal, a DC blocking device (C1) in the signal output path (19) between an output terminal (20) to which the controllable device (21) is connected and the signal generating circuit (11) to prevent continuous flow of direct current therethrough while permitting the transmission of the amplitude varying signal, a first rectifying device (D2) in the output path (19) between the blocking device (C1) and the output terminal (20) and a second rectifying device (D1) connected in an intermediate path (22) between a point in the output path (19) between the blocking device (C1) and the first rectifying device (D2) and a terminal at a predetermined bias potential, the polarities of the rectifying devices (D1, D2) being such that first portions of the amplitude varying signal having potentials offset from the bias potential in one sense are conducted by the first rectifying device (D2) to the output terminal (20) for application to the controllable device (21) while second portions of the amplitude varying signal having potentials offset from the bias potential in the opposite sense are conducted by the second rectifying device (D1). The circuit meets safety requirements which demand that the probability of an unsafe condition in the circuit giving rise to inappropriate control of certain controllable devices be lower than 1 in 10.sup.6.
REFERENCES:
patent: H1068 (1992-07-01), Huhmann
patent: 3780653 (1973-12-01), Stinchcomb
Mano, Digital Logic and Computer Design, 1979, 584-586.
Pihulic Daniel T.
Short Brothers PLC
LandOfFree
Control signal transmission circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control signal transmission circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control signal transmission circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-466812