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Power arbitration method and apparatus having a control logic circuit for assessing and selecting power supplies
Power arbitration method and apparatus having a control logic circuit for assessing and selecting power supplies
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机译:具有用于评估和选择电源的控制逻辑电路的电源仲裁方法和装置
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摘要
A power selector for switching power supplies is implemented using a variety of methods and devices. According to an example embodiment of the present disclosure, an arrangement provides power to a circuit by selecting between a first supply and a second supply. The first power circuit provides a regulated level of power to the integrated circuit (IC) having an operating power level specified as a circuit operating level for providing power to the IC. The second power circuit provides power to the IC. A power-signal arbitration circuit for assessing V DDREG and whether the second power circuit is to provide power to the IC as an alternative to the first power circuit providing power to the IC is based on a threshold power level indicative of the specified operating power level and the regulated level of power. Based on the power-signal arbitration circuit's assessment, providing an arbitration-control signal to the power-signal switching circuit.
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