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US 4,151,444 AGranted
Voltage switching circuit for a color display system
AssigneeTektronix, Inc.
InventorTimothy A. Jenness
Life of this patent
Estimating the term…
Abstract
A power supply for a color display device of the type in which the color of light emitted by a phosphor screen is changed by switching an electron accelerating voltage between different levels, the switching being digitally controlled and being connected so that descending voltage changes are recycled to efficiently drive the supply.
Claims3
Voltage switching display system, comprising:
- a color display device of the type wherein the color of light emitted by a phosphor screen is changed in accordance with an electron accelerating voltage applied thereto;
- a digitally controlled power supply for providing said accelerating voltage, said supply including means for switching and accelerating voltage between different levels;
- and
- means operatively disposed between said display device and said power supply for causing said accelerating voltage to be re-utilized by said power supply on descending voltage levels.
1 more element
Dependencies are inferred from the claim text.