Current peak constant circuit-based switching power supply for leather spray dryer

Abstract

The invention discloses a current peak constant circuit-based switching power supply for a leather spray dryer. The current peak constant circuit-based switching power supply is characterized by mainly comprising a control chip U, a transformer T, an overvoltage protection circuit, a current adjusting circuit, a field-effect tube MOS1, a polar capacitor C5, a diode D3, a polar capacitor C4, a current peak constant circuit and a photoelectric coupling switching circuit, wherein the current peak constant circuit is connected between the overvoltage protection circuit and a source of the field-effect tube MOS1 in series; and the photoelectric coupling switching circuit is connected with the current adjusting circuit and a secondary induction coil L3 of the transformer T separately. According to the current peak constant circuit-based switching power supply for the leather spray dryer, high-voltage pulses in voltage and high-current ripples in current can be effectively adjusted; and dynamic states of the voltage and the current are kept stable, so that the condition that the current peak constant circuit-based switching power supply can output stable voltage and current is ensured; the stability of the drying temperature of the high-polymer leather spray dryer is ensured; and deformation or a paint failure of a high-polymer shoe material leather surface is effectively prevented.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a switching power supply for a leather spray paint dryer based on a current peak constant circuit. Background technique [0002] As polymer leather is widely used in the leather products industry, while people have higher and higher requirements for the quality of leather products, they also put forward higher requirements for the quality of polymer leather. However, to produce high-quality polymer leather, the key lies in the step of drying the polymer shoe material leather after painting. [0003] At present, the switching power supply of the polymer leather spray dryer has the problem of unstable output voltage and current, which leads to the extremely unstable drying temperature of the polymer leather spray dryer, resulting in deformation or paint peeling on the surface of the polymer shoe material leather. defect. [0004] Therefore, it is a top priority to provide a switching p...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of unstable output voltage and current in the switch power supply of the polymer leather spray paint dryer in the prior art, and provide a switching power supply of the polymer leather spray paint dryer

Images