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US 2003/0117091 A1Published application
Power saving supply commutation method and apparatus for electronic convergence circuits
AssigneeKoninklijke Philips Electronics N.V.
InventorsDavid A. Christian, James R. Jennings JR.
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Abstract
In accordance with an exemplary embodiment of the present invention, a cathode ray tube convergence circuit includes a low voltage power supply and a high voltage power supply. The cathode ray tube convergence circuit further includes a switching network which is adapted to switch between the low voltage power supply and the high voltage power supply. The switching network dissipates substantially no power during operation of the convergence circuit.
Claims18
A cathode ray tube convergence circuit, comprising:
- A low voltage power supply;
- A high voltage power supply;
- and
- A low-power dissipating switching network which switches between said low voltage power supply and said high voltage power supply.
1 more element
A cathode ray tube convergence circuit, comprising:
- A boost-on-demand circuit which includes a positive polarity convergence circuit, and a negative polarity convergence circuit;
- and wherein said positive and negative polarity convergence circuits further comprise a switching network.
Dependencies are inferred from the claim text.