• Chengdu Xingtongli Power Supply Equipment Co., Ltd.
    John Torr
    I have purchased many of these rectifiers and they are the best value and well made on the market. All my customer like them and all have bought more after having one
Contact Person : Una Wang
Phone Number : +8615828663127
Whatsapp : +8615828663127

30V 20A High Frequency Switching Power Supply

Place of Origin China
Brand Name Xingtongli
Certification CE RoHS
Model Number GKDH30-20CVC
Minimum Order Quantity 1 SET
Price 450$~600$
Packaging Details Wooden case 820*820*1000mm
Delivery Time 9~12 working days
Payment Terms L/C, D/A, D/P, T/T, Western Union, MoneyGram,Paypal
Supply Ability 500 SET/month

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Product Details
Application Automatic Reverse High Frequency Switching Power Supply Efficiency >85%
Control Way Remote Control/local Panel Control Cooling Way Air Cooling
Color White Type High Frequency Switching DC IGBT Rectifier
Dimension 380*320*200 Weight 7kg
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automatic reverse igbt based rectifier


automatic reverse igbt rectifier


30V 20A Switching Power Supply

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Product Description

30V 20A Small Water treatment automatic reverse high frequency switching power supply

Product Usage
Suitable for sewage treatment production line.
Using the timing control function, the setting is simple and convenient, and the working time of positive and negative current polarities can be arbitrarily set according to the plating process requirements.
It has three working states of automatic cycle commutation, positive and negative, and reverse, and can automatically change the polarity of the output current.
The core components of the commutation are made of special superconducting materials, the control part adopts intelligent time control, the power is turned off during switching, and it has protection functions such as undervoltage, phase loss, overcurrent and short circuit.
According to customer needs, it can expand standard control interfaces such as 4-20mA, 0-10V, 0-5V, etc., and can also meet the requirements of RS485 communication interface with the host computer, RS232 and other control systems.

Technical Parameters
Input voltage: single-phase AC220V ± 15%
Output current: 0~20A optional
Output voltage: 0~30V optional
Output current: 0-limit current value (steplessly adjustable)
Output voltage: 0-limit voltage value (steplessly adjustable)
Control mode: PMW pulse width control
Cooling method: forced air cooling
Control accuracy: rated value ≤1%
Operation mode: operation under different states of voltage stabilization / steady current

30V 20A High Frequency Switching Power Supply 0

30V 20A High Frequency Switching Power Supply 1




Switching power supply working principle:


The principle of voltage regulator switching power supply control regulator:

The switch knob repeatedly switches to a certain time interval. When the switch is turned on, the input power is supplied to the load through the switch knob and the filter circuit. During the entire switch is turned on, the power supply provides energy to the load;

When the switch is open, the input power is interrupted to provide energy. It can be seen that the input power supply that provides energy to the load is intermittent. In order for the load to obtain continuous energy power, the switching power supply must have an energy storage device. When the switch is turned on, part of the energy is stored in the switch. When it is turned off, The stored energy will be released to the load. The inductor is used for energy storage. When the switch is turned off, the energy in the energy storage inductor is released to the load through the diode to ensure that the load obtains continuous and stable energy. Because the diode allows the load to obtain continuous current, it is called a continuous current diode. This is how the switching power supply works.


Input AC 220V±10% 1phase 50/60Hz
Output DC Volt 0~30V               Adjustable
Current 0~20A         Adjustable
Power 600W
Efficiency >85%
Switching Frequency 20KHz
reverse way manual/automatic
reverse time 0~999hours adjsutable
Protection Short circuit protection
Overheating protection
Phase lack protection
Input over/low voltage protection
Working Condition
-10℃~50℃ Control mode Panel control
Remote control
Net weight 25kg Working mode Constant Voltage(CV)
Constant Current(CC)
Dimension(mm) 520*395*165mm Cooling way Air cooling
1. 0~10V, 4~20mA,PLC,Timer, Ampere-minute/hour counter, HMI can be provided

2. Control mode: Local control or Remote control(the length of cable is determined by customers)
3. Japan IGBT(the default choice) or Germany IGBT are adopted
4. After being phosphated, galvanized and plastic sprayed, the chassis has excellent corrosion resistence function
5. Easy to operate and repaire

How to install rectifier
This is installation way for remote control rectifier. Not only this way.
1. To connect copper bar with bath/tank
2. To ensure power supply/rectifier is grounded
3. To ensure there is enough water for water cooling type power supply/rectifier
4. We advice that all rectifiers should be isolated to increase of its life.

30V 20A High Frequency Switching Power Supply 2