Driver circuit for a vacuum fluorescence display

Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Filament – electric heater – or resistance in shunt with the...

Reexamination Certificate

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Details

C315S098000, C313S495000, C313S496000

Reexamination Certificate

active

06933676

ABSTRACT:
A vacuum fluorescence display has a plurality of heating regions and heating inputs corresponding thereto. A driver circuit for the VFD has a driver module with a pulse width-modulatable output connected by way of a distributor to a plurality of heating inputs of the VFD. A switching member is connected between the distributor and one or more of the heating inputs.

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