Matches 1 - 9 out of 9


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US20140132182 FEEDBACK CIRCUIT FOR NON-ISOLATED POWER CONVERTER  
A feedback circuit for a power converter (e.g., a non-isolated converter) is disclosed. The feedback circuit may include a sense circuit coupled to receive an output current of the converter. A...
US20120032614 NOVEL LED DRIVER CIRCUIT  
A novel LED driver circuit, including: a current regulation circuit, having a first end and a second end, wherein a first current is flowing into the second end, and a voltage difference between...
US20120176047 Lighting Apparatus and Light Emitting Diode Device Thereof  
The present invention provides a light emitting diode (LED) device. The LED device include a driver, a first LED coupled in series with the driver, and an impedance-providing component coupled in...
US20080290819 LIGHT-EMITTING DEVICE DRIVER CIRCUITS AND RELATED APPLICATIONS  
Driver circuits for light-emitting devices (e.g., light-emitting diodes), as well as systems and methods associated therewith are provided.
US20080012507 High Current Fast Rise And Fall Time LED Driver  
The present invention contemplates a variety of improved techniques for the fast switching of current through, among others, LED loads. A current shunting device is utilized to divert current away...
US20080012508 Protection circuit and method  
A light source is protected by selectively coupling a shunt path in parallel with the light source, such that current is diverted away from the light source and through the shunt path. A detection...
US20090284179 Apparatuses for Providing Power for Illumination of a Display Object  
An exemplary power regulator apparatus provides power for illumination of a display object, such as a merchandise package or container, which has a light emitting apparatus comprising a secondary...
US20080218100 Regulation of Electrical Current Through a Resistive Load  
control processor, wherein the control processor is adapted to control the first and second current sources based on the sensor signal. The first current source having a diode with first and...
US20140176013 DIMMING CONTROL METHOD AND APPARATUS AND DIMMING SYSTEM  
Embodiments of the present invention disclose a dimming control method and apparatus and a dimming system. The method according to an embodiment of the invention includes: detecting a conduction...
Matches 1 - 9 out of 9