Active bootstrapped-supply generator
US-2024429816-A1 · Dec 26, 2024 · US
Soft turn-off for boost converters
US9124231B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9124231-B2 |
| Application number | US-201313752282-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 28, 2013 |
| Priority date | Jan 28, 2013 |
| Publication date | Sep 1, 2015 |
| Grant date | Sep 1, 2015 |
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Abstract
Official abstract text for this publication.
Techniques for reducing ringing arising from L-C coupling in a boost converter circuit during a transition from a boost ON state to a boost OFF state. In an aspect, during an OFF state of the boost converter circuit, the size of the high-side switch coupling a boost inductor to the load is gradually increased over time. In this manner, the on-resistance of the high-side switch is decreased from a first value to a second (lower) value over time, which advantageously reduces ringing (due to high quality factor or Q) when initially entering the OFF state, while maintaining low conduction losses during the remainder of the OFF state. Further techniques are provided for implementing the high-side switch as a plurality of parallel-coupled transistors.
First claim
Opening claim text (preview).
The invention claimed is: 1. An apparatus comprising: a control logic block configured to generate a resistance adjustment signal for a high-side switch of a boost converter, the high-side switch coupling an inductor to a load during an OFF state of the boost converter, wherein the resistance adjustment signal is configured to decrease the resistance of the high-side switch during the OFF state, wherein at a first time, an output voltage is at a first voltage level, wherein fo…
Assignees
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Classifications
- H02M1/088Primary
Electricity · mapped topic
Electricity · mapped topic
- H03G1/0005Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9124231B2 cover?
- Techniques for reducing ringing arising from L-C coupling in a boost converter circuit during a transition from a boost ON state to a boost OFF state. In an aspect, during an OFF state of the boost converter circuit, the size of the high-side switch coupling a boost inductor to the load is gradually increased over time. In this manner, the on-resistance of the high-side switch is decreased from…
- Who is the assignee on this patent?
- Qualcomm Inc, Qualcomm Inc
- What technology area does this patent fall under?
- Primary CPC classification H02M1/088. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 01 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).