Synchronous two wire multiple strobe autotrigger control circuit

Details Synchronous two wire multiple strobe autotrigger control circuit Synchronous two wire multiple strobe autotrigger control circuit

1997-12-09

2000-06-20

Philogene, Haissa

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Condenser in shunt to the load device and the supply

315241R, 315200A, 315 82, H05B 4134

Patent

active

060781459

ABSTRACT:
An apparatus for simply retrofitting pre-existing vehicular incandescent hazard flashing lamps or strobe assemblies having high voltage wiring with low voltage, low-cost, two wire synchronized strobe lamp assemblies without requiring the altering of the vehicle's existing structure or wiring. The apparatus utilizes a high voltage d.c. to d.c. converter circuit which may be completely contained within the lamp housing so that no high voltage wiring will be routed through the vehicle. The strobe trigger circuit operates by sensing the ground potential at its input to trigger the strobe assembly's flash tube. This feature allows the synchronization of all circuit lamps, both incandescent and strobe, on a two wire flasher circuit without the need for a third wire to provide the trigger signal to the flash circuit. One embodiment of the invention works autosynchronously in conjunction with a standard electromechanical flasher relay as may be utilized in a typical vehicular warning light system.

REFERENCES:
patent: 3644818 (1972-02-01), Paget
patent: 3673462 (1972-06-01), Girard
patent: 3845349 (1974-10-01), Liebman
patent: 4013921 (1977-03-01), Corthell
patent: 4301392 (1981-11-01), Hirata
patent: 4317070 (1982-02-01), Tokuda et al.
patent: 4958143 (1990-09-01), Knauff
patent: 5013973 (1991-05-01), Stopa
patent: 5386180 (1995-01-01), Nakajima et al.

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