30V 20A DC Stabilized Power Supply

I.Brief Introductions


The line form of the WYK series DC voltage-stabilized power supply is a linear series adjusting type, which is characteristic of such advantages as high stability and low ripple voltage.

Using the reference voltage suspension superposition type technology, the output voltage can be adjusted from zero volt to the rated value and the output current can be preset from zero to the rated value.

The thyristor is adopted to change the voltage at both ends of the rectifier bridge.

The dual power supply is limited to only WYK-302B2, WYK-303B2 and WYK-305B2, which have the master-slave tracking series- and parallel-connection functions. When using the series-connection, the output voltage is the sum of two voltages to increase the load voltage and when using the parallel connection, the output current is the sum of the two output currents to increase the load capacity.

RS485 interface is used to achieve the remote control (optional).

The high-power DC voltage-stabilized power supply uses the three-phase full-controlled bridge-type rectifier circuit and the control circuit core components and  uses the high-performance high-density large-scale devices imported from the United States to achieve digitalization in the aspect of the pulsed phase shift, fixed-width and modulation.

The system is characteristic of such advantages as high pulse symmetry, strong anti-interference ability and fast response speed, which is programmable and is equipped with a RS485 interface. Its maximum power output is 10000KW.

Applicable scope: Laboratories of universities and research institutes, electrical products testing and commissioning; electronic products testing and aging; postal & communication and telecommunication products matching and DC motor aging.


II.Main Parameters

Input Voltage AC220V+10%   50Hz+1Hz Output Voltage 0- Rating Adjustable With RS485 interface allows remote monitoring (optional) Output Current 0- Rating Adjustable Power effect CV≤1×10-3+5mv or CV≤1×10-4+5mv CV≤1×10-2+10mv or CV≤1×10-2+10mv loading effect CV≤1×10-3+5mv or CV≤1×10-4+5mv CV≤1×10-2+10mv or CV≤1×10-2+10mv Display 2.5 Mechanical table or 3 half of the display meter Cycle and random drift ≤1mv(rms) WYK Phase-controlled High Power DC Voltage- and Current-stabilized Power Supply Input Voltage three phase 380V±10% 50Hz Output Voltage Adjustable continuously Source Effect ≤0.5% Loading Effect ≤0.5% Ripple ≤50mV(virtual value) Output Protection Over-voltage, over current, lack of phase Temperature -10ºC~40ºC

III.Our advantages


Our main products:voltage regulators/stabilizers, UPS, inverters, transformers and so on
Our company welcome your orders on these products.




IV.Company Profile

JIANGSU EKSI ElECTRICAL MANUFACTURING CO.,LTD locates in Yangzhou Economical and Technological Development Zone of Jiangsu. This is a large technological joint-stock enterprise in China, developing and manufacturing UPS(Uninterrupted Power Supply ), special UPS for electric power industry, EPS, grid-connected solar network, stand-alone inverter, percision air-conditioned, photovoltaic controller telecom power supply, AC&DC stabilized voltage supply, maintenance-free lead-acid batteries, transformers and reactors etc.


The company is a high-tech enterprise and member of China Power Supply Society. It's one of those which passed authentications of ISO9001:2008 QC system and ISO14001:2004 environment management system, CECP, TLC, CE, TUV, AS4777 etc. Our products are always honored as "trustworthy products" and "Famous Brand of Jiangsu".


EKSI has established over 30 branches as well as sales agents and created a complete sales and service network. Our products are widely applied in finance, banking, stock exchange, traffic, civil aviation, CIQ, taxation, education, post & communications, oil as well as chemical industries, and are exported to over 60 countries and districts including Spain, Germany and USA. And experts of power supply protection and services appraised us for our excellent technologies, outstanding qualities, good-quality services.