Efficient energy saving method for driving LED (light-emitting diode) by high frequency and narrow pulse

Abstract

The invention relates to an efficient energy saving method for driving a LED (light-emitting diode) by high frequency and narrow pulse. The high frequency and the narrow pulse with small duty ratio which are generated by a high frequency and narrow pulse generation circuit are used to drive the LED to emit the pulse flash light, and the visual residual effect of the human eye is used to feel the higher brightness under the conditions of LED short current flow time, low power consumption and low heat, so that the purposes of prolonging the service life of the LED and saving energy are achieved. The high frequency and narrow pulse generation circuit is composed of a narrow pulse generation unit 1, a grid drive and protection unit 2, a current sensor detection unit 3, a trigger unit 4 and a voltage-stabilized power supply unit 5, and the whole circuit can be designed as a functional module or an IC (integrated circuit) chip used for a novel efficient energy-saving long-life LED light source, and has huge social and economic benefits.

Description

technical field [0001] The invention relates to the field of electric light sources, in particular to daily energy-saving lighting for buildings, hotels, restaurants, shopping malls, offices of enterprises and institutions, factories, workshops, institutions, schools and ordinary families, and more specifically, to a high-frequency narrow pulse drive High-efficiency energy-saving method of LED. Background technique [0002] Lighting is an indispensable part of people's daily production and life. From primitive torches and oil lamps to various modern electric lights, it has been developing along with the progress of human society. Since Edison invented the electric light, using electricity to emit light has become the main lighting method in modern civilized society. Among all kinds of electric light sources, LED lighting, which has emerged in recent years, is a new type of electric light source with the fastest development and the most promising future. However, most of th...

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Problems solved by technology

However, most of the current LED drive methods use constant voltage and constant current drive. There is a continuous current flowing during the LED lighting process, which makes the LED heat seriously. The heat dissipation of the light source is a technical problem that has long plagued people. If it is not solved properly, it will directly affect LED Light Source Lifetime and Efficiency

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