Electric lamp and discharge devices: systems – Discharge device and/or rectifier in the supply circuit – Plural discharge devices and/or rectifiers in the supply...
Patent
1974-04-29
1976-02-10
Rolinec, R. V.
Electric lamp and discharge devices: systems
Discharge device and/or rectifier in the supply circuit
Plural discharge devices and/or rectifiers in the supply...
307311, 315208, H05B 3700
Patent
active
039380009
ABSTRACT:
An electrical circuit for limiting surge currents through incandescent indicator or display lamps is disclosed. It is essentially a constant current device having a current controlling transistor in the load circuit to limit the initial surge current to a first value after, which the lamp itself limits the current. Provision is made for testing of the lamp and circuit by maintenance personnel.
REFERENCES:
patent: 3512047 (1970-05-01), Garde
Dahl Lawrence J.
GTE Automatic Electric Laboratories Incorporated
Heid David W.
Rolinec R. V.
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