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US 6,856,519 B2Granted
Inverter controller
AssigneeO2Micro International Limited
InventorsYung-Lin Lin, Da Liu
Life of this patent
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Abstract
An integrated circuit inverter controller that includes at least one input pin that is configured to receive two or more input signals. The input pin may be multiplexed so that the appropriate input signal is directed to appropriate circuitry within the controller to support two or more functions of the controller. Alternatively, the input signals may be present in differing time periods so that a single pin can support two or more functions. Multifunctional or multitasked pins reduce the overall pin count of the inverter controller.
Claims7
A system, comprising:
- one or more cold cathode fluorescent lamps;
- an inverter circuit generating an AC signal to power said one or more lamps;
- and
- an inverter controller adapted to generate a plurality of signals to drive said inverter circuit, said controller comprising at least one input pin configured to receive at least two independent input signals, each said input signal supporting an associated function of said controller during operation of said controller.
1 more element
Dependencies are inferred from the claim text.