LED integrated encapsulation COB light source with power supply drive IC

Abstract

The invention discloses an LED integrated encapsulation COB light source with a power supply drive IC. The COB light source comprises a substrate, a control IC, a plurality of LED chips and a bridge rectifier, the control IC, the LED chips and the bridge rectifier are simultaneously and firmly encapsulated on the substrate through an encapsulation technique, the LED chip is electrically connected with the control IC, and the two connected ends are electrically connected between the positive direct current output end and the negative direct current output end of the bridge rectifier; two alternating current input ends of the bridge rectifier are connected with an external alternating current power supply; the negative direct current output end of the bridge rectifier is connected with a GND. The LED integrated encapsulation COB light source with the power supply drive IC has advantages that an external power supply driver is omitted, alternating current can be directly connected with the light source, and accordingly the service life of the light source is greatly prolonged; and meanwhile, the circuit is simple in structure and small in volume, and the light source can effectively realize high light efficiency and low thermal resistance and avoid light failure.

Description

technical field [0001] The invention relates to the technical field of LED lighting, in particular to an LED integrated packaging COB light source containing a power drive IC. Background technique [0002] With the advantages of energy saving, environmental protection, long life, high brightness and strong controllability, LED has won the recognition of the market and consumers, and is the best choice to replace traditional light sources. With the rapid development of LED lighting technology, LEDs are more and more widely used in various fields of society. In order to make LEDs suitable for different application fields, LED packaging technology is also constantly innovating and improving. Among them, COB packaging is the mainstream. kind of. In the prior art, the power supply method adopted by LED lamps is as follows: the external AC power supply is first connected to the power driver, and the high-voltage AC power is transformed by the power driver to generate low-voltag...

AI Technical Summary

Problems solved by technology

In the prior art, the power supply method adopted by LED lamps is as follows: the external AC power supply is first connected to the power driver, and the high-voltage AC power is transformed by the power driver to generate low-voltage direct current, and the low-voltage direct current is connected to the LED lamp and supplies power to the LED lamp , this design will make the size of the LED lamp larger, the circuit structure complex, and the components that make up the circuit increase, especially the electrolytic capacitor in the power driver has a limited life, which greatly affects the service life of the LED lamp. The production cost of LED lamps is high, which is unfavorable for the promotion of the market

Images