Electric lamp and discharge devices: systems – Condenser in the supply circuit – Condenser in shunt to the load device and the supply
Patent
1974-01-30
1976-02-24
Borchelt, Archie R.
Electric lamp and discharge devices: systems
Condenser in the supply circuit
Condenser in shunt to the load device and the supply
307252M, 315151, 315179, 315188, H05B 4132
Patent
active
039406598
ABSTRACT:
A main capacitor is connected across a series combination of a flash discharge lamp and a thyristor to flash the flash discharge lamp through the thyristor in its ON state. A commutation circuit connected to the thyristor includes a commutation capacitor and another thyristor turned on upon a flashing light from the flash discharge lamp reaching a predetermined magnitude. When turned on, the latter thyristor permits the commutation capacitor to supply a reverse voltage to the first thyristor to turn it off. A semiconductor diode is connected between the commutation capacitor and the first thyristor to prevent that capacitor from applying a forward voltage to the first thyristor.
REFERENCES:
patent: 3629673 (1971-12-01), Thorborg
patent: 3659119 (1972-04-01), Kasama et al.
patent: 3696268 (1972-10-01), Exner
patent: 3740610 (1973-06-01), Roncke
patent: 3809951 (1974-05-01), Vital et al.
patent: 3849703 (1974-11-01), Shimamura et al.
Fujimaru Yoshio
Kojima Suzuo
Adams Bruce L.
Borchelt Archie R.
Burns Robert E.
LaRoche E. R.
Lobato Emmanuel J.
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