Power supply device including voltage boosting circuit
US-2024250607-A1 · Jul 25, 2024 · US
Active snubber circuit and power supply circuit
US8964430B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8964430-B2 |
| Application number | US-201113018649-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 1, 2011 |
| Priority date | Feb 10, 2010 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An active snubber circuit for a switching power supply, in which a main switching element repeatedly operates an on-off operation so that current intermittently flows in a primary coil, has a capacitor for surge voltage absorption, a sub-switching element and a sub-control circuit controlling the sub-switching element. A circuit in which the capacitor for surge voltage absorption and the sub-switching element are connected in series is connected in parallel with the primary coil, and the sub-control circuit turns on the sub-switching element for a predetermined time period just after the main switching element is off.
First claim
Opening claim text (preview).
What is claimed is: 1. An active snubber circuit for a switching power supply, the switching power supply comprising: a transformer having a primary-side main coil and a secondary-side coil; a main switching element that is serially connected to the primary-side main coil in the transformer; and a control power source configured to operate an on-off operation of the main switching element, wherein the main switching element repeatedly operates the on-off operation so that cu…
Assignees
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- H02M3/33569Primary
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US8964430B2 cover?
- An active snubber circuit for a switching power supply, in which a main switching element repeatedly operates an on-off operation so that current intermittently flows in a primary coil, has a capacitor for surge voltage absorption, a sub-switching element and a sub-control circuit controlling the sub-switching element. A circuit in which the capacitor for surge voltage absorption and the sub-sw…
- Who is the assignee on this patent?
- Yoshinaga Mitsutomo, Sanken Electric Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02M3/33569. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 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).