Controlling a brushless motor
US-12095402-B2 · Sep 17, 2024 · US
Direct-current power supply device, motor driving device, air conditioner, and refrigerator
US2016248352A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016248352-A1 |
| Application number | US-201315029648-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 18, 2013 |
| Priority date | Oct 18, 2013 |
| Publication date | Aug 25, 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.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A direct-current power supply device includes a rectifier connected to a power supply, a charge storage unit configured by a first capacitor and a second capacitor connected in series, a switching unit configured by a first switching element 4 a and a second switching element connected in series and backflow preventing elements that suppress a backflow of electric charges from the charge storage unit, a reactor, a control unit that controls operations of the first switching element and the second switching element, and a direct-current-voltage detecting unit that detects a first both-end voltage, which is a voltage across the first capacitor, and a second both-end voltage, which is a voltage across the second capacitor. The control unit detects, on the basis of a voltage difference between the first both-end voltage and the second both-end voltage, a short-circuit failure of one of the first switching element and the second switching element.
First claim
Opening claim text (preview).
1 . A direct-current power supply device comprising: a rectifier connected to an alternating-current power supply; a charge storage unit including a first capacitor and a second capacitor connected in series; a switching unit including a first switching element and a second switching element connected in series and backflow preventing elements that suppress a backflow of electric charges from the charge storage unit; a control unit that controls operations of the first switching element a…
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016248352A1 cover?
- A direct-current power supply device includes a rectifier connected to a power supply, a charge storage unit configured by a first capacitor and a second capacitor connected in series, a switching unit configured by a first switching element 4 a and a second switching element connected in series and backflow preventing elements that suppress a backflow of electric charges from the charge st…
- Who is the assignee on this patent?
- Mitsubishi Electric Corp
- What technology area does this patent fall under?
- Primary CPC classification H02P6/12. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Aug 25 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).