Transformer

US2016204708A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2016204708-A1
Application numberUS-201414906517-A
CountryUS
Kind codeA1
Filing dateAug 5, 2014
Priority dateAug 29, 2013
Publication dateJul 14, 2016
Grant date

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A transformer of distributed-constant type is provided between an AC power supply with a frequency f and a load with a resistance value R, and includes: a first converter connected to the AC power supply and having a length of λ/4; and a second converter provided between an end of the first converter and the load, and having a length of λ/4, where a wavelength at the frequency f is λ. Such a transformer has a small size and a light weight, and does not need a coil, an iron core, and the like as used in a conventional transformer.

First claim

Opening claim text (preview).

1 . A transformer, of distributed-constant type, provided between an AC power supply with a frequency f and a load with a resistance value R, the transformer comprising: a first converter connected to the AC power supply and having a length of λ/4; and a second converter provided between an end of the first converter and the load, and having a length of λ/4, where a wavelength at the frequency f is λ. 2 . A transformer comprising: a circuit configured to perform switching; and the transformer according to claim 1 , interposed in the circuit. 3 . The transformer according to claim 1 , wherein the first converter and the second converter are each formed by a cable. 4 . The transformer according to claim 3 , wherein the cable is integrated with a power cable of a distribution line. 5 . The transformer according to claim 3 , wherein the frequency of the AC power supply is at least 1 MHz. 6 . The transformer according to claim 4 , wherein the frequency of the AC power supply is at least 1 MHz.

Assignees

Inventors

Classifications

  • H02M5/10Primary

    using transformers · CPC title

  • H02M5/293Primary

    using semiconductor devices only · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US2016204708A1 cover?
A transformer of distributed-constant type is provided between an AC power supply with a frequency f and a load with a resistance value R, and includes: a first converter connected to the AC power supply and having a length of λ/4; and a second converter provided between an end of the first converter and the load, and having a length of λ/4, where a wavelength at the frequency f is λ. Such a tr…
Who is the assignee on this patent?
Sumitomo Electric Industries, Nat Univ Corp Toyohashi Univ
What technology area does this patent fall under?
Primary CPC classification H02M5/10. Mapped technology areas include Electricity.
When was this patent published?
Publication date Thu Jul 14 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).