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US8947007B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8947007-B2 |
| Application number | US-201213561603-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 30, 2012 |
| Priority date | Mar 30, 2012 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
The present document relates to providing power for driving SSL devices. A power converter converts a varying input voltage to supply an output voltage to a SSL device in series with a current source. The power converter comprises one or more capacitors; a plurality of switches to couple the capacitors in a plurality of configurations. A control unit operates the power converter in a plurality of operational modes providing a corresponding plurality of different conversion ratios between the input/output voltages. The operational modes comprise a first phase and a second phase, during which the capacitors are differently arranged. The control unit controls the switches to alternate between the phases at a commutation cycle rate. The control unit sets the operational mode based on the varying input voltage.
First claim
Opening claim text (preview).
The invention claimed is: 1. A solid state lighting (SSL) light bulb assembly comprising: a SSL device; a driver circuit, converting supply electricity received through an electrical connection module into a controlled drive current for the SSL device, comprising: a first power converter converting a varying input voltage at an input of the power converter into an output voltage at an output of the power converter supplying the output voltage to the solid state lighting, compri…
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Electricity · mapped topic
- H05B45/3725Primary
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US8947007B2 cover?
- The present document relates to providing power for driving SSL devices. A power converter converts a varying input voltage to supply an output voltage to a SSL device in series with a current source. The power converter comprises one or more capacitors; a plurality of switches to couple the capacitors in a plurality of configurations. A control unit operates the power converter in a plurality …
- Who is the assignee on this patent?
- Zudrell-Koch Stefan, Knoedgen Horst, Dialog Semiconductor Gmbh
- What technology area does this patent fall under?
- Primary CPC classification H05B45/3725. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 03 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).