Network 485 Communication Switch Power Supply

1.                 INTRODUCTION

KGY Series High-Frequency Switching Power Supply is mainly applied to the electroplating, communication, electric utility industry, accumulator recharging and other fields that require direct current of high quality. It also plays an important role in the process of producing circuit board and plating rare metal.

2.             TECHNICAL PARAMETERS AND CHARACTERS

1)  Production standards:

 National standard   GB/T 3859.1 – 93;  JB/T 1504 - 93   

 Manufacturer's standard  Q/SCD 002- 2000

2)  Main technical parameters:

·       Regulated range of output voltage: 0-              V, current:  0-              A；

·       Input power: Single phase---220VAC±10% ;  Three phase---380VAC±10%  ；

·       Input power frequency: 47~63Hz；

·       Power : ＞0.90 (full load）;  Efficiency:＞0.85（full load）；　

·       Controlled precision of constant voltage/current: ＜1%；

·       Rank of loading capacity: Ι .

3) Characters

l Reliable:

Fine design, rational placement, complete protective functions towards such conditions   as low voltage, over voltage, lack of phase, over outputting current, over temperature, etc. Having such virtues and high quality components in the product, therefore, it promise the product runs smoothly.

l     High Efficiency, Accuracy and Low Ripple Wave:

Having adopted advance IGBT and PWM technology, it may improve overall working efficiency, its accuracy and low ripple wave. The ripple ration of outputting current is low than 1%. Either fluctuant network of voltage or change of load may not influence its quality of outputting voltage. The product has such virtues as high power factors, little network pollution and no influence.

l  Compact Capacity and Light Weight:

Transformers adopt new materials. Its switch frequency may reach 25 KHz. All those improve its working efficiency. Elegant contour, compact capacity, lightweight,working temperature may low significantly.

l     Sealed design for whole box body

adopt to depend on chemical in the structure and plastic parts inside, to  extend the power’s life under the bad condition.

l     Output High Frequency Pulse Current

Most suitable for electroplating for color metals and alloy metals. Having fine penetrate and good adherence, it may improve the electroplating quality such as brightness significantly.

l     Proper outer controlling system

Include of hand control and automatical control .

3.      PRINCIPLE OF WORK

1) control cureent

KGY  series  high-frequency switching power supply adopt to SMR switching technology,The circuit is mainly composed of recitification and filter current ,bridge converting circuit,Variational voltage and rectification current circuit,etc.main circuit is reliable ,and is strong to resit influence. please see the principle figure below: