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Methods and apparatus to improve power factor at light-load
US8941365B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8941365-B2 |
| Application number | US-201113211123-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 16, 2011 |
| Priority date | Aug 16, 2011 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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Methods and apparatus to improve power factor are disclosed. An example method includes detecting power provided to a power factor corrector; detecting power provided by the power factor corrector; and disabling the power factor corrector from correcting a power factor of a load for at least one period when the power provided by the power factor corrector is below a light-load threshold.
First claim
Opening claim text (preview).
What is claimed is: 1. A method to correct a power factor comprising: detecting power provided to a power factor corrector at a line frequency; detecting power provided by the power factor corrector; and disabling the power factor corrector from correcting the power factor of a load for at least one period of the line frequency when the power provided by the factor corrector is below a predetermined light-load threshold; further comprising synchronizing a timing circuit to a…
Assignees
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Classifications
- H02M1/4225Primary
Electricity · mapped topic
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8941365B2 cover?
- Methods and apparatus to improve power factor are disclosed. An example method includes detecting power provided to a power factor corrector; detecting power provided by the power factor corrector; and disabling the power factor corrector from correcting a power factor of a load for at least one period when the power provided by the power factor corrector is below a light-load threshold.
- Who is the assignee on this patent?
- Murdock Matthew Thomas, Goerke Ulrich B, Texas Instruments Inc
- What technology area does this patent fall under?
- Primary CPC classification H02M1/4225. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 27 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).