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Method and apparatus for generating an adaptive switching frequency for operating power factor correction circuit
US8971075B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8971075-B2 |
| Application number | US-201213365528-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 3, 2012 |
| Priority date | Feb 7, 2011 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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A method of operating a power factor correction (PFC) circuit and a corresponding power factor correction circuit include determining an adaptive switching frequency of the PFC circuit related to a current of the boost inductor of the PFC circuit, and operating the PFC circuit at a light load based on the adaptive switching frequency.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of operating a PFC (power factor correction) circuit having a main PFC FET and a boost inductor, the method comprising: determining an adaptive switching frequency of the PFC circuit related to a current of the boost inductor; and operating the PFC circuit at a light load based on the adaptive switching frequency, wherein determining the adaptive switching frequency of the PFC circuit comprises determining a time that the current of the boost indu…
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- H02M1/4225Primary
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US8971075B2 cover?
- A method of operating a power factor correction (PFC) circuit and a corresponding power factor correction circuit include determining an adaptive switching frequency of the PFC circuit related to a current of the boost inductor of the PFC circuit, and operating the PFC circuit at a light load based on the adaptive switching frequency.
- Who is the assignee on this patent?
- Ye Zhong, Sun Bosheng, 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 Mar 03 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).