LED stroboscopic driving power supply of novel rectification power rectification topology structure

Abstract

The invention discloses an LED stroboscopic driving power supply of a novel rectification power rectification topology structure, and relates to the technical field of electronics and power. The LED stroboscopic driving power supply comprises an AC power supply, the AC power supply is connected with an EMI filter circuit, a rectification power correction circuit, an RCD buffer circuit, a flyback converter, an output filter circuit and an LED load successively, and an active capacitor circuit is connected in parallel between the rectification power correction circuit and the RCD buffer circuit.The rectification power correction circuit is of a brand new structure different from that of a diode rectification circuit or a bridge rectification circuit. The brand new power structure topologiccombination is used to improve the stability and reliability of the power supply and reduce power consumption and cost; an active capacitor is added after the rectification power correction circuit and before the RCD buffer circuit, the capacitance in the tail end of the rectification power correction circuit is greatly reduced, and requirement for high frequency switching in the primary side of the transformer can be met.

Description

technical field [0001] The invention relates to the technical field of electronic power, in particular to a novel LED strobe drive power supply with rectification power rectification topology. Background technique [0002] Nowadays, with the rapid development of the artificial intelligence industry, there are more and more applications of machine vision inspection systems related to it. Machine vision inspection systems have particularly strict requirements on the quality of light sources, otherwise the image recognition system cannot correctly identify pixel distribution and brightness, etc. information. The quality of the light source also depends on the stability and robustness of the driving power supply. After ensuring the reliability of the power supply, the characteristics of low power consumption and low cost are also the advantages that industrial products should have. Therefore, an LED strobe light source with high reliability, low power consumption and low cost ...

AI Technical Summary

Problems solved by technology

The rectification part of the traditional LED power supply uses a diode rectifier bridge, which has a large conduction loss and low efficiency and can only be boosted, which affects the efficiency and quality of the entire power supply.

Generally, in order to maintain a relatively stable output voltage in power supplies, capacitors with large capacitance values ​​are usually used, which also increases the manufacturing cost and reduces the cost performance of enterprise procurement.

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