Electroluminescent lamp driver

Details Electroluminescent lamp driver Electroluminescent lamp driver

1989-10-20

1991-11-19

Mis, David

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Plural periodic switches or multiple contact periodic switch

315225, 315283, H05B 3702

Patent

active

050668951

ABSTRACT:
A driver for a electroluminous lamp includes a bridge switching circuit comprising four MOSFETS, the lamp and a series connected inductance being connected as the load on the bridge circuit. The switching of the transistors of the bridge circuit is controlled by logic circuitry which generates a two-phase, non-overlapping gating control signal which causes the MOSFETS to be switched in pairs whereby current will flow in alternate directions through the lamp.

REFERENCES:
patent: 4042856 (1977-08-01), Steigerwald
patent: 4438372 (1984-03-01), Zuchtriegel
patent: 4734624 (1988-03-01), Nagase et al.
patent: 4845489 (1989-07-01), Hormel

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