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Device for power conversion using switching element
US9257902B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9257902-B2 |
| Application number | US-201213479487-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 24, 2012 |
| Priority date | May 24, 2011 |
| Publication date | Feb 9, 2016 |
| Grant date | Feb 9, 2016 |
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Abstract
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A converter is provided as a power conversion device. The converter includes a switching circuit that performs switching on the basis of switching signals; and a control circuit that changes switching frequency of switching signals in a predetermined pattern with the elapse of time, and repeats the changes in switching frequency in the predetermined pattern at every repetition time. The converter sets the repetition time such that a repetition frequency that is the inverse of the repetition time does not coincide with a frequency band that can be demodulated as sound by a radio that receives radio broadcasts.
First claim
Opening claim text (preview).
What is claimed is: 1. A power conversion device comprising: a switching circuit provided with a switching element that performs switching operations for power conversion on a basis of a switching frequency of a switching signal provided to the switching element; and a control circuit that controls the switching signal such that the switching frequency is repeatedly changed, in each repetition time, in accordance with a predetermined pattern of changes in frequency, the predeter…
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- H02M1/44Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9257902B2 cover?
- A converter is provided as a power conversion device. The converter includes a switching circuit that performs switching on the basis of switching signals; and a control circuit that changes switching frequency of switching signals in a predetermined pattern with the elapse of time, and repeats the changes in switching frequency in the predetermined pattern at every repetition time. The convert…
- Who is the assignee on this patent?
- Kin Kanretsu, Goto Shinya, Hirashima Shigeo, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H02M1/44. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 09 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).