Power converter system
US-2024364218-A1 · Oct 31, 2024 · US
Output current sensing method in discontinuous DC-to-DC voltage converter
US9083236B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9083236-B2 |
| Application number | US-201013148960-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 10, 2010 |
| Priority date | Feb 19, 2009 |
| Publication date | Jul 14, 2015 |
| Grant date | Jul 14, 2015 |
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Abstract
Official abstract text for this publication.
The present invention refers to high-voltage generators, in particular to a step-down DC-to-DC converter circuit (buck converter) for supplying a DC output voltage U out which may e.g. be used in a voltage supplying circuitry of an X-ray radio-graphic imaging system. According to the invention, the peak value of the buck converter's storage inductor current I L is controlled by a control circuit μC′ which regulates the on-time Δt on of a semiconductor switch S in the feeding line of this storage inductor L. As a result thereof, an output current sensor CS, which is commonly used in today's buck converter designs, becomes redundant.
First claim
Opening claim text (preview).
The invention claimed is: 1. A control unit (μC′) comprising a current simulator (CS′) configured for simulating a slope (dI L(on) /dt) of an inductor current (I L(on) )which flows through a storage inductor (L) placed in an inductive branch of a DC-to-DC voltage converter circuit (VCC′) which is being operated in a discontinuous current mode, said inductor current (I L(on) ) being such that the flowing occurs in each cyclically recurrent on-state phase of a first semiconductor swi…
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- H02M3/156Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9083236B2 cover?
- The present invention refers to high-voltage generators, in particular to a step-down DC-to-DC converter circuit (buck converter) for supplying a DC output voltage U out which may e.g. be used in a voltage supplying circuitry of an X-ray radio-graphic imaging system. According to the invention, the peak value of the buck converter's storage inductor current I L is controlled by a control circ…
- Who is the assignee on this patent?
- Rexhausen Wolfgang, Bleukx Marc Maria Alex, Koninkl Philips Nv
- What technology area does this patent fall under?
- Primary CPC classification H02M3/156. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 14 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).