This patent covers a circuit arrangement for operating light-emitting diodes that has a rectifier, an energy storage capacitor and a current controller. The patent is active in Germany, the UK, France, Italy, Austria and Switzerland. It has counterparts in China and Korea.
Easy Micro storage converter Circuit with an added storage capacitor that is charged within a predefined current range of the LEDs. and discharged within another cuurent range. As these converter topologies are cheap and easy to set up, the relevance in lighting applications is growing.
Thank you for your review, Buggi.
This invention is related to LED drivers. Traditional techniques to drive a LED circuit, either by converting supply voltage to LED’s forward voltage or use switched regulators.
Disclosed are simplified LED driver circuits using a rectifier, energy storage capacitor and a current controller, so that luminaires are robust, efficient and able to operate on high voltages even in presence of power fluctuations. Such circuits are simple and easy to use.
The invention may be implemented in LED drivers, LED circuits having multiple LEDs etc.
Argh, I do not speak German! But the English claims seem to confirm Mickey's view.
Hi Patent101, You may want to have a look at the U.S. patent application. It's not alive any longer but it is in English ;-)
Looks like a clever and simple circuit arrangement for operating a chain of LED on AC voltage. Instead of using a converter, the invention relies on a rectifier, an energy store and a circuit controller.
Smart invention for low cost applications of LEDs directly coupled to mains voltage.