Foreign object detection in a wireless power transfer system
US-2024372410-A1 · Nov 7, 2024 · US
Systems and methods for limiting voltage in wireless power receivers
US9508487B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9508487-B2 |
| Application number | US-201213622204-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 18, 2012 |
| Priority date | Oct 21, 2011 |
| Publication date | Nov 29, 2016 |
| Grant date | Nov 29, 2016 |
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Abstract
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This disclosure provides systems, methods, and apparatus for the limiting of voltage in wireless power receivers. In one aspect, an apparatus includes a power transfer component configured to receive power wirelessly from a transmitter. The apparatus further includes a circuit coupled to the power transfer component and configured to reduce a received voltage when activated. The apparatus further includes a controller configured to activate the circuit when the received voltage reaches a first threshold value and configured to deactivate the circuit when the received voltage reaches a second threshold value. The apparatus further includes an antenna configured to generate a signal to the transmitter that signals to the transmitter that the received voltage reached the first threshold value.
First claim
Opening claim text (preview).
What is claimed is: 1. An apparatus to receive power wirelessly from a transmitter, comprising: a power transfer component configured to receive power wirelessly from the transmitter; a circuit coupled to the power transfer component, the circuit configured to reduce a received voltage when activated; a controller configured to provide a control signal to activate the circuit when the received voltage reaches a first threshold value and to deactivate the circuit when the recei…
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Frequently asked questions
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- What does patent US9508487B2 cover?
- This disclosure provides systems, methods, and apparatus for the limiting of voltage in wireless power receivers. In one aspect, an apparatus includes a power transfer component configured to receive power wirelessly from a transmitter. The apparatus further includes a circuit coupled to the power transfer component and configured to reduce a received voltage when activated. The apparatus furth…
- Who is the assignee on this patent?
- Qualcomm Inc
- What technology area does this patent fall under?
- Primary CPC classification H01F38/14. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 29 2016 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).