PatentsDB

Switched mode assisted linear regulator with dynamic buck turn-off using ZCD-controlled tub switching

US9112409B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9112409-B2
Application numberUS-201414586151-A
CountryUS
Kind codeB2
Filing dateDec 30, 2014
Priority dateAug 10, 2012
Publication dateAug 18, 2015
Grant dateAug 18, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A switched mode assisted linear regulator includes a linear amplifier (LA) and a buck converter configured as a current source. In example embodiments, the buck converter circuit includes a power switch M 1 with an M 1 body diode (tub), and includes buck turn-off circuitry configured to avoid negative inductor current by controlled switching of the tub to the higher of VIN and a second voltage. For DC-coupled configurations, boost functionality is provided by an LA boost supply, and the tub is switched to the boost supply. For AC-coupled configurations, boost functionality can be provided without boosting the LA supply rail by constraining signal peak-to-peak amplitude to be less than the LA supply voltage (maintaining a DC-average voltage on the AC-coupling capacitor), and the tub is switched to the higher of VIN and VOUT. The buck turn-off circuitry can include zero crossing detection to control M 1 tub switches.

First claim

Opening claim text (preview).

The invention claimed is: 1. A power supply circuit with a switched mode assisted linear amplifier architecture with an amplifier, and a buck switched mode converter configured for operation as a current source with a buck inductor, the power supply circuit operable to receive an input voltage VIN, and supply a regulated output voltage VOUT, and associated output current to a dynamic load, comprising: an amplifier circuit and a buck switched mode converter (buck converter) circuit…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

View patent family 53266141

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Get alerts for this patentView on Google Patents

Request deeper analysis

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9112409B2 cover?
A switched mode assisted linear regulator includes a linear amplifier (LA) and a buck converter configured as a current source. In example embodiments, the buck converter circuit includes a power switch M 1 with an M 1 body diode (tub), and includes buck turn-off circuitry configured to avoid negative inductor current by controlled switching of the tub to the higher of VIN and a second voltag…
Who is the assignee on this patent?
Texas Instruments Inc
What technology area does this patent fall under?
Primary CPC classification H02M3/158. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Aug 18 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).