AC LED manufacturing method

Abstract

An AC LED manufacturing method includes the following steps: (1) a light source, a drive circuit and an input end are arranged on a substrate; (2) the input end and a rectification module are connected through a first gold wire, electronic devices in the rectification module are connected through second gold wires, the fusing current of the first gold wire is smaller than the triple rated current of an AC LED loop, and the maximum bearing current of the second gold wires is larger than the maximum bearing current of the first gold wire; (3) the input end is powered on through an external power source, whether a light-emitting area emits light or not is observed, if not, whether the first gold wire is fused or not is judged, if the first gold wire is fused, it is judged that the short-circuit problem happens to the rectification module, and if the first gold wire is not fused, it is judged that a drive IC breaks down; and when the light-emitting area emits light normally, adhesive sealing is performed on an AC LED, if a short circuit happens to the input end when the circuit is tested, the circuit current is fast increased, the first gold wire is fused, the phenomenon that the rear end of the substrate is burnt down is avoided, and solid welding can be performed on an abnormal material again.

Description

technical field [0001] The invention relates to LEDs, in particular to a method for manufacturing AC LEDs. Background technique [0002] AC LED (AC LED) includes a light source, a drive circuit and an input terminal, and the drive circuit includes a fuse, a rectifier circuit and a drive IC. The existing AC LED manufacturing method is to arrange the light source, input terminal and driving circuit on the substrate, the LED chips of the light source are connected by gold wires, the electronic components of the driving circuit are connected by wires, the AC power supply is connected to the input terminal, and It enters the rectification module through the fuse, and the output voltage of the rectification module is loaded on both ends of the light source after passing through the driver IC. During the operation, the rectifier diode used to fix the rectifier module has too much silver glue or the gold wire is bent, which will cause the input terminal AC / L (live wire) and AC / N (n...

AI Technical Summary

Problems solved by technology

During the operation, the rectifier diode used to fix the rectifier module has too much silver glue or the gold wire is bent, which will cause the input terminal AC / L (live wire) and AC / N (neutral wire) of the rectifier module to be short-circuited, and burn the pad of the rectifier module. This kind of damage cannot rework the material, reduces the yield rate, and increases the manufacturing cost

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