Pre-charge driver for light emitting devices and method

Details Pre-charge driver for light emitting devices and method Pre-charge driver for light emitting devices and method

1996-06-10

1998-03-03

Pascal, Robert

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

315307, 345 78, G09G 312

Patent

active

057239509

ABSTRACT:
A precharge driver for light emitting devices with an associated capacitance, the precharge driver including a driver coupled to a light emitting device so as to supply a substantially square wave of current to the light emitting device and a precharge circuit coupled to the driver so as to activate the driver to supply a pulse of current to the associated capacitance of the light emitting device to rapidly charge the associated capacitance at an initial portion of the square wave of current, whereby a resultant substantially square wave of current is applied to the light emitting device.

REFERENCES:
patent: 5552677 (1996-09-01), Pagones
patent: 5578906 (1996-11-01), Smith

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