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

A technology of constant circuit and peak current, applied in the field of electronics, can solve the problems of unstable output voltage and current, and achieve the effect of stable current intensity, ensuring stability and stable working performance.

Inactive Publication Date: 2016-09-28
CHENGDU SAIPUQI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

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Embodiment

[0020] Such as figure 1 As shown, the present invention is mainly composed of a control chip U, a transformer T, a field effect transistor MOS1, a resistor R11, a resistor R12, a resistor R13, a polar capacitor C4, a polar capacitor C5, a diode D3, a current peak constant circuit, and a current adjustment circuit. Photocoupler switch circuit, and overvoltage protection circuit.

[0021] When connected, the negative pole of the polarity capacitor C5 is connected to the gate of the field effect transistor MOS1, and its positive pole is connected to the OUT pin of the control chip U. The N pole of the diode D3 is connected to the drain of the field effect transistor MOS1 through the resistor R13, and its P pole is connected to the IFB pin of the control chip U. The positive pole of the polarity capacitor C4 is connected to the COMP pin of the control chip U through the resistor R12, and its negative pole is connected to the VFB pin of the control chip U through the resistor R11....

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Abstract

The invention discloses a switching power supply for a leather spray paint dryer based on a current peak value constant circuit, which is characterized in that it mainly consists of a control chip U, a transformer T, an overvoltage protection circuit, a current adjustment circuit, a field effect transistor MOS1, and a polar capacitor C5, diode D3, polarity capacitor C4, the current peak constant circuit connected in series between the overvoltage protection circuit and the source of the field effect transistor MOS1, and the current adjustment circuit and the transformer T secondary inductance coil L3 connected respectively Photocoupler switch circuit composition. The invention can effectively adjust the high-voltage pulse in the voltage and the high-current ripple in the current, so that the dynamics of the voltage and current can be kept stable, thereby ensuring that the invention can output stable voltage and current, and ensure that the polymer leather is sprayed and baked. The stability of the drying temperature of the dryer effectively prevents the deformation or peeling off of the leather surface of the polymer shoe material.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/156H02M1/14
CPCH02M3/156H02M1/14
Inventor 不公告发明人
Owner CHENGDU SAIPUQI TECH CO LTD
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