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Power arbitration method and apparatus having a control logic circuit for assessing and selecting power supplies
US9219475B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9219475-B2 |
| Application number | US-201313875118-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 1, 2013 |
| Priority date | May 1, 2013 |
| Publication date | Dec 22, 2015 |
| Grant date | Dec 22, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
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.
First claim
Opening claim text (preview).
What is claimed is: 1. An apparatus comprising: a first power circuit for providing a regulated voltage to and for powering an integrated circuit (IC) having an operating voltage level; a second power circuit configured and arranged for providing power to and for powering the IC; a control logic circuit that includes: a compare circuit that is configured and arranged for assessing, based on the regulated voltage and a first threshold voltage level, the first threshold voltag…
Assignees
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Classifications
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H03K17/22Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9219475B2 cover?
- 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 a…
- Who is the assignee on this patent?
- Nxp Bv
- What technology area does this patent fall under?
- Primary CPC classification H03K17/22. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 22 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).