Power supply control device
US-2024305205-A1 · Sep 12, 2024 · US
Switching power supply device
US8988901B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8988901-B2 |
| Application number | US-201314050395-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 10, 2013 |
| Priority date | May 12, 2011 |
| Publication date | Mar 24, 2015 |
| Grant date | Mar 24, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A switching power supply includes a series resonant circuit that includes a resonant inductor and a resonant capacitor connected in series with a primary winding of a converter transformer. By controlling turning on and off of first and second switching elements in a complementary manner, current is supplied to the series resonant circuit. A third switching element connected on the secondary side of the converter transformer is synchronized with the first switching element, and a fourth switching element is synchronized with the second switching element. If a switching frequency is less than a resonant frequency, turning on of the third and fourth switching elements is synchronized with turning on of the first and second switching elements, and turning off of the third and fourth switching elements is controlled, without being synchronized with turning off of the first and second switching elements, after half a resonant period has elapsed.
First claim
Opening claim text (preview).
What is claimed is: 1. A switching power supply device comprising: a converter transformer including a primary winding, a first secondary winding, and a second secondary winding; a series resonant circuit including a resonant inductor and a resonant capacitor that are connected in series with the primary winding; a first switching element and a second switching element that supply electric power to the series resonant circuit by being subject to on/off control in a complementa…
Assignees
Inventors
Classifications
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
- H02M3/33507Primary
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8988901B2 cover?
- A switching power supply includes a series resonant circuit that includes a resonant inductor and a resonant capacitor connected in series with a primary winding of a converter transformer. By controlling turning on and off of first and second switching elements in a complementary manner, current is supplied to the series resonant circuit. A third switching element connected on the secondary si…
- Who is the assignee on this patent?
- Murata Manufacturing Co
- What technology area does this patent fall under?
- Primary CPC classification H02M3/33507. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 24 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).