White light light-emitting diode (LED) integrated light source

Abstract

The invention relates to a white light light-emitting diode (LED) integrated light source. The white light LED integrated light source comprises at least two groups of LED strings, two poles of each group of LED strings are connected with a power supply respectively, and the LED strings are used for emitting light. According to the white light LED integrated light source, common direct current (DC) LED chips or capsules are in a series connection to form an integrated module, and the light source is simple in structure, mature in manufacturing process, low in cost and capable of being used as a common illumination light source; the LED light source is actually driven by a pulse current, the LED light source is out of operation in a period of time, namely the LED light source is cooled in the period of time, and by means of the operation mode, the requirement of the LED light source for the lamp heat dissipation performance is reduced; a matched power converter is small in size and provided with a few of elements, and the power converter is beneficial to the lamp structural design; the converting efficiency of the matched power converter can reach to above 90%, the system efficiency of the whole lamp is greatly improved, and the energy saving effect is achieved; and the matched power converter is free of electrolytic capacitor, and the service life of the whole lamp can be substantially prolonged.

Description

technical field [0001] The invention relates to an integrated light source, in particular to a white LED integrated light source, which belongs to the field of lighting equipment. Background technique [0002] Traditional LEDs are typical low-voltage direct current devices (DC LEDs), which cannot be used directly under the 110 / 220V alternating current used in our daily lighting. They must be stepped down by a transformer or switching power supply, and then converted from alternating current (AC) to direct current (DC) , and then converted into a DC constant current source, it can be used as a DC LED light source. Therefore, there must be a certain space in the LED lamp to install the power converter, and its conversion efficiency is difficult to achieve more than 90%. [0003] In order to overcome these defects of the supporting power supply of the DC LED light source, a high-voltage low-current AC LED light source has emerged in the industry. AC LED is an LED lighting tec...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a simple structure for the shortcomings of the existing AC LED light source, such as complex manufacturing process, low luminous efficiency, low chip utilization, risk of high-voltage electric shock, and inapplicability to high-power lamps. , low cost, white LED integrated light source suitable for general lighting

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