Light emitting diode control circuit

Details Light emitting diode control circuit Light emitting diode control circuit

1986-06-02

1988-09-13

Moore, David K.

Electric lamp and discharge devices: systems

With load device temperature modifier

Load device circuit controlled by the temperature modifying...

315112, 307311, B05C 1102

Patent

active

047712198

ABSTRACT:
When a light-emitting diode is controlled for transmitting high-frequency signals, such as video signals, or quick-changing analog signals, the electro-optical signal conversion is subjected to distortions due to temperature variations in the barrier layer of the diode which arise due to rapidly varying power losses. The circuit presented herein includes a compensating stage operatively connected to the diode, for alleviating such signal distortions. The system is capable of differentiating between the respective conditions of rising and falling edges of the control in the representative signal of signals to be transmitted.

REFERENCES:
patent: 3705316 (1972-12-01), Burrous et al.
patent: 4149071 (1979-04-01), Nagai et al.
patent: 4160934 (1979-07-01), Kirsch
patent: 4182977 (1980-01-01), Stricklin
patent: 4238707 (1980-12-01), Malissin et al.
patent: 4443890 (1984-04-01), Eumurian
Werner Wiesner, "Ansteuerung von LED's in Optischen Sendern" Electronic, 26/28, Dec. 1984.

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