Driver/control circuit for a electro-luminescent element

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver

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Details

327110, 3151693, H03B 100

Patent

active

057540640

ABSTRACT:
A driver/control circuit for a super thin lighting element display includes a DC power supply, a function interface, an inverter, and a component interface. The function interface is implemented by selectable inputs and control outputs of an integrated circuit, while the inverter is made up of the square wave output of the integrated circuit and a transformer isolated from the square wave output by a transistor, the primary winding of the transformer being connected between the power supply and the transistor, with the control electrode of the transistor being connected to the square wave output of the integrated circuit. Preferably, in the case of multiple lighting element control, the component interface includes transistors having control electrodes connected to the control outputs of the integrated circuit, while in the case of multiple lighting elements of different types, the inverter preferably includes either a plurality of transformers or a transformer having a plurality of different secondary windings, or a combination of different transformer and secondary winding arrangements.

REFERENCES:
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patent: 5245516 (1993-09-01), de Haas et al.
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patent: 5317497 (1994-05-01), Belek
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patent: 5384456 (1995-01-01), Saika et al.

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