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US9019009B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9019009-B2 |
| Application number | US-201313860714-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 11, 2013 |
| Priority date | Apr 27, 2012 |
| Publication date | Apr 28, 2015 |
| Grant date | Apr 28, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A method of adjusting the frequency or phase of operation of a Class-D amplifier is disclosed. The method comprises making a series of step changes in the frequency or phase to adjust the frequency or phase from a start value to a desired end value, each step change in frequency or phase causing a corresponding disturbance of an output of the Class-D amplifier to produce a series of disturbances, each of which varies from an initial magnitude in first and second senses to exhibit a first peak and then in the first sense to exhibit a second peak. The time between the step changes is selected so that the second peak of each disturbance other than a final disturbance in the series overlaps the first peak of an immediately succeeding disturbance.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of adjusting the frequency or phase of operation of a Class-D amplifier, the method comprising: making a series of step changes in one of the frequency and the phase to adjust the frequency or phase from a start value to a desired end value, each step change in frequency or phase causing a corresponding disturbance of an output of the Class-D amplifier to produce a series of disturbances, each of which varies from an initial magnitude with a f…
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Classifications
Electricity · mapped topic
- H03F1/26Primary
Electricity · mapped topic
- H03F3/2171Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9019009B2 cover?
- A method of adjusting the frequency or phase of operation of a Class-D amplifier is disclosed. The method comprises making a series of step changes in the frequency or phase to adjust the frequency or phase from a start value to a desired end value, each step change in frequency or phase causing a corresponding disturbance of an output of the Class-D amplifier to produce a series of disturbance…
- Who is the assignee on this patent?
- Nxp Bv, Nxp Bv
- What technology area does this patent fall under?
- Primary CPC classification H03F1/26. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 28 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).