Light emitting device driving circuit and method thereof

Abstract

A light emitting device driving circuit and a method thereof are provided. The light emitting device driving circuit includes a frequency detection circuit and a frequency adjustment circuit. The frequency detection circuit is configured to detect a light frequency of a light emitting device to provide at least one detection frequency signal. The frequency adjustment circuit adjusts the light frequency of the light emitting according to the detection frequency signal and a plurality of preset flicker frequencies.

Description

technical field [0001] The present invention relates to a driving circuit, and in particular to a light-emitting element driving circuit and a method thereof. Background technique [0002] In recent years, various lighting devices or lamps in the living environment gradually adopt light emitting diodes (light emitting diodes, referred to as LEDs) as light emitting elements to generate lighting sources. Light-emitting diodes have the advantages of power saving, long service life, environmental protection, and small size. Therefore, they have been widely used in various devices, such as lighting equipment, display equipment, and light sources for mobile electronic products. They have become both energy-saving and environmentally friendly. main lighting source. [0003] In the case of image acquisition in an environment where lighting sources are generated by lighting equipment or lamps, the electronic device with image acquisition function usually uses a charge-coupled device...

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Problems solved by technology

[0005] The invention provides a light-emitting element driving circuit and its method, which can actively detect the light source frequency of the light-emitting element in the environment, and adjust according to it, so as to improve the problem of flickering on the image screen when acquiring images

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