LED constant current driving module

Abstract

The invention discloses a LED constant current driving module, which comprises a metal shell, a power input end, a power output end and a circuit board, wherein the power input end and the power output end are arranged on the metal shell; the circuit board is arranged inside the metal shell; the circuit board is provided with a power input circuit, a power output circuit and a control circuit; thecontrol circuit comprises a reverse connection protection and filtering circuit of an input power supply, a control signal detection and response circuit, an output current range regulation circuit,an output voltage detection circuit, an output voltage feedback circuit, an output overvoltage protection circuit, an output overcurrent protection circuit, an alarm detection and output circuit and aconstant current circuit. The LED constant current driving module has a small size, the weight is light, the power is high, natural cooling is carried out through the metal shell, and modularizationof LED constant current driving is realized.

Description

technical field [0001] The present invention relates to the field of LED illumination, in particular to an LED constant current drive module. Background technique [0002] In the field of LED lighting, the existing LED constant current drive modules are generally linear constant current modules, such as low voltage DC / DC constant current modules, but there are almost no constant current modules with 48V / 10A that can be built into the lamp head. Because the 48V constant voltage power supply is a standard power supply, it is available in most of the equipment, but the constant current modules above 200W on the market are too bulky to be placed in the lamp holder, resulting in a lamp holder with a slightly higher power. Drivers are not conducive to product simplification and maintenance, and the miniaturization of high-power power supplies is a technical bottleneck. Contents of the invention [0003] In order to overcome the deficiencies of the existing technologies, the pre...

AI Technical Summary

Problems solved by technology

Because the 48V constant voltage power supply is a standard power supply, it is available in most devices, but the constant current modules above 200W on the market are too bulky to be placed in the lamp holder, resulting in a lamp holder with a slightly higher power. Drivers are not conducive to product simplification and maintenance, and the miniaturization of high-power power supplies is a technical bottleneck

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