Integrated circuit capable of enhanced lamp ignition
AssigneeO2Micro, Inc.
InventorsDa Liu, S.T. Lee, C.C. Kuo
Life of this patent
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Abstract
A method according to one embodiment may include supplying ignition power and steady state power to at least one lamp. The method of this embodiment may also include receiving, during an ignition period of said lamp, a feedback signal indicative of power supplied to said lamp; comparing said feedback signal to a signal that is approximately equal to a signal indicative of steady state power; and maintaining a supply of ignition power to said lamp while said feedback signal remains below said signal indicative of said steady state power. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.
Claims14
An apparatus, comprising:
- an inverter controller capable of supplying ignition power and steady state power to at least one lamp, said inverter controller is also capable of receiving, during an ignition period of said lamp, a feedback signal indicative of power supplied to said lamp and comparing, via a comparator, said feedback signal to a signal that is approximately equal to a signal indicative of steady state power and maintaining a supply of ignition power to said lamp while said feedback signal remains below said signal indicative of said steady state power.
An apparatus, comprising:
- an inverter controller capable of supplying ignition power and steady state power to at least one lamp, said inverter controller comprising open lamp protection circuitry capable of generating a delay signal, said open lamp protection circuitry is capable of extending the delay time of said delay signal until said delay signal equals or exceeds a shutdown threshold signal, or until said controller is delivering steady state power to said lamp.
A system, comprising:
- a liquid crystal display (LCD) panel comprising at least one lamp;
- and
- an inverter controller capable of supplying ignition power and steady state power to said at least one lamp, said inverter controller is also capable of receiving, during an ignition period of said lamp, a feedback signal indicative of power supplied to said lamp and comparing, via a comparator, said feedback signal to a signal that is approximately equal to a signal indicative of steady state power and maintaining a supply of ignition power to said lamp while said feedback signal remains below said signal indicative of said steady state power.
A method, comprising:
- supplying ignition power and steady state power to at least one lamp;
- receiving, during an ignition period of said lamp, a feedback signal indicative of power supplied to said lamp;
- comparing said feedback signal to a signal that is approximately equal to a signal indicative of steady state power;
- and
- maintaining a supply of ignition power to said lamp while said feedback signal remains below said signal indicative of said steady state power.
Dependencies are inferred from the claim text.