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Power supply device and method of determining abnormality in power supply device
US9048735B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9048735-B2 |
| Application number | US-201313853574-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 29, 2013 |
| Priority date | Oct 1, 2012 |
| Publication date | Jun 2, 2015 |
| Grant date | Jun 2, 2015 |
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Abstract
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A power supply device includes: a first switching element and a flywheel semiconductor element which are connected in series to a first DC power source in this order; and a reactor and a second DC power source which are connected in series in this order to a node between the first switching element and the flywheel semiconductor element. A second switching element and a charge circuit for charging a line between the first switching element and the second switching element are interposed between the reactor and the second DC power source. Abnormality of each element is determined from a voltage of each portion of the power supply device measured when the first and second switching elements and the flywheel semiconductor element are driven and controlled.
First claim
Opening claim text (preview).
What is claimed is: 1. A power supply device, comprising: a first DC power source; a first switching element and a flywheel semiconductor element which are respectively connected to the first DC power source in series; a reactor, a second switching element, and a second DC power source which are respectively connected in series to a node between the first switching element and the flywheel semiconductor element; a drive control unit for driving the first switching element an…
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Electricity · mapped topic
Electricity · mapped topic
- H02M1/32Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9048735B2 cover?
- A power supply device includes: a first switching element and a flywheel semiconductor element which are connected in series to a first DC power source in this order; and a reactor and a second DC power source which are connected in series in this order to a node between the first switching element and the flywheel semiconductor element. A second switching element and a charge circuit for charg…
- Who is the assignee on this patent?
- Kihara Nobuhiro, Okuda Hiroshi, Mitsubishi Electric Corp
- What technology area does this patent fall under?
- Primary CPC classification H02M1/32. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 02 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).