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Pwm Ac Voltage Regulator Series Controller - China

price: contact company for price

I. Product Introduction

    PWM AC controller includes single- phase PWM AC controller and three- phase PWM AC controller, as an electrical AC voltage- regulating controller, it adopts DSP ( Digital Signal Processing, called as DSP for short) and CPLD ( Complex Programmable Logic Device, called as CPLD for short) as the control core, IGBT as the power control device and realizes adjustable output voltage magnitude by PWM control mode and its voltage waveform is sine wave. Its output voltage characteristics are similar to an auto- coupling contact- type voltage regulator. Because its power factor is higher than 0.98 and the total harmonic distortion of current THDI is less than 6% , the conversion efficiency of the power supply is more than 0.98. Under the condition that no any power factor compensation and harmonic wave absorption apparatus is attached, the power factor and harmonic wave have met the standard requirements of the State Grid.

Characterized by advantages such as constant voltage, constant current, constant power closed- loop control and multiple given control signal selections, PWM AC controller is a new generation of ideal green power supply substituting for SCR controller. It applies to resistive load, inductive load and primary side of transformer etc. and it can be widely used in the continuous regulation of voltage, current and power in all fields of industry.

II. Performance Indexes

    1. The output current is AC20A~150A, the primary circuit and control circuit adopt integrated & miniaturized structure and wall- mounted installation;

    2. When the output current is more than AC150A, the primary circuit and control circuit adopt cabinet- type structure.

    3. Constant voltage, constant current and constant power closed- loop control can be set freely.

    4. It has an automatic current- limiting function, when the output current is equal to or greater than 1.1 times of the rated current, the current will be limited.

    5. It has soft start and soft turn- off functions.

    6. With high- precision AD conversion, the constant voltage, constant current and constant power precision is higher than 0.5% and the system resolution ratio is higher than 0.5‰.

    7. It is equipped with a LED numeral display tube, which is convenient for setting various functional parameters and displaying electrical parameters.

    8. It has phase- deficient, overcurrent, overheating, load disconnection and three- phase unbalance protection functions.

    9. It has fault self- diagnosis function and automatic phase- sequence confirmation function.

    10. PF≥ 0.98, THDI≤ 6% , η ≥ 0.98。

    11. With RS485 communication interface and MODEBUS communication protocol, it can communicate with PLC and the host computer, which is convenient for remote monitoring.


Company Contact:


  • Phone: 86051258105999

  • Address: Province Industrial Zone(South),Zhangjiagang City,, Zhangjiagang, China

  • Email: Email


Published date: October 26, 2014 -

  • Business Description: Jiangsu Eastone Technology Co.,Ltd. Is a high and new tech enterprise in

    research and production of green and effective power supply,which

    undertook national and provincial torch projects for several times and

    obtained multiterms national innovation funds. Our products have high

    power switch power supply, PWM AC voltage regulator, PWM DC front power

    supply,all solid intermeditate frequency and high frequency electric

    source, and intelligent thyristor Ac voltage regulator, hich are used as

    heating and smelting power for new energy and new material industry.

    Just like the numerous enterprises which are involved in global economic integration, Eastone is always making efforts in searching the development road, we have improved and exceeded a lot. Eastone people who are hardworking ,intelligent , open minded and sincere are warmly looking forward to advancing and cooperation with all walks of life relying on the innovation spirit of brave,intelligent, heightened awareness and development, so as to provide the most professional and superior products and services and promote the green power industry.

    Company fully implement ISO9001 international quality management system, always seeking "attention to market demand, technical innovation, strengthen scientific management, abide by the pledge, the pursuit of excellence, and create the industry name brand" quality. Pay close attention to market trends and industry trends, understand customer needs, the use of advanced technology, materials, technology, timely development of high tech new products, constantly updated upgrade products to meet the needs of social development, for walking in the front of peers; relying on science the management of the enterprise management level and product quality is improving, with first class products, low prices, high quality service win the trust of customers, customer satisfaction as the survival of the enterprise would have achieve our commitment to customers. Our aim is to enhance customer satisfaction, enhance corporate image and achieve quality objectives, and create a brand industry to achieve higher business goals.

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