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US 2011/0254520 A1Published application
Controllers, systems and methods for implementing multi-phase control
AssigneeO2Micro, Inc.
InventorsChengHwa TEH, Laszlo LIPCSEI, Serban Mihai POPESCU
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Abstract
A controller includes an input selector, multiple cores and a multiplexer. The multiplexer is operable for multiplexing control signals to multiple output channels to provide multiple output signals. Each output channel can output a respective output signal, and each output signal represents a cyclic rotation of the control signals. The input selector is operable for enabling the cores to operate in a standby state alternately to control a multiplexing sequence of the control signals.
Claims22
A controller comprising:
- a plurality of cores operable for providing a plurality of control signals;
- a multiplexer coupled to said cores and operable for multiplexing said control signals to a plurality of output channels to provide a plurality of output signals, wherein said output channels each outputs a respective output signal, and wherein said respective output signal represents a cyclic rotation of said control signals;
- and
- an input selector coupled to said cores and operable for enabling said cores to operate in a standby state alternately to control a multiplexing sequence of said control signals to be multiplexed by said multiplexer.
1 more element
A method of implementing a multi-phase control comprising:
- determining a multiplexing sequence for a plurality of control signals;
- multiplexing said control signals in said multiplexing sequence to a plurality of output channels;
- generating a plurality of output signals at said output channels;
- representing a cyclic rotation of said control signals by each of said output signals;
- and
- controlling a current through a load coupled to said output channels based upon said output signals.
3 more elements
A system comprising:
- a multi-phase controller having a plurality of output channels for providing a plurality of output signals, wherein said output channels each outputs a respective output signal, wherein said output signals each represents a cyclic rotation of a plurality of control signals, and wherein at least two of said output signals have the same waveform and different phases;
- and
- a plurality of converters coupled to said output channels and operable for providing an output voltage based upon said output signals.
Dependencies are inferred from the claim text.