福建省二電新能源科技有限公司 技術熱線:18050436329

20A系列高頻開關電源模塊采用了先進的三相有源PFC技術和LLC軟開關技術的控制技術，使得模塊效率進一步提高，諧波減小。模塊采用交流三相三線制380VAC輸入方式，不存在中線電流損耗。模塊交流輸入經過尖峰抑制電路和EMI吸收電路，經三相有源PFC電路將三相交流電壓整流為直流電壓，由LLC諧振變換器將直流電壓變換成高頻方波電壓，再由輸出整流濾波電路，得到穩定的輸出電壓和電流。在電網電壓和負載發生變化時反饋調整電路控制LLC電路，使得輸出電壓和電流保持穩定。

20A series frequency switching power supply module use advanced technology of three-phase active PFC and LLC control soft-switching technology, allow modules to  improve efficiency, reduce harmonics. Module adopts the method ,which is three-phase and three-input 380VAC , there is no neutral current loss. After a spike suppression circuits and EMI absorption circuit, the three-phase active PFC circuit three-phase , AC voltage is rectified to DC voltage, DC will be transformed into a high-frequency square wave voltage by the LLC resonant converter, and then filtered by the output rectifier circuit, to get a stable output voltage and current. When the input voltage and load changed, the feedback circuit will control LLC circuit to keep the output voltage and current stable.

模塊特點 Module Characteristics

1. 交流輸入范圍寬：260～500VAC

Wide range of input AC: 260～500VAC

2. 先進的三相有源PFC技術: 更好地抑制高次諧波，THD滿載時小于5%，功率因數可達0.99。

Advanced PFC technique: high-frequency harmonic can be restricted better, and power factor can be 0.99

3. 智能溫控風冷方式：增加風機的使用壽命,使模塊運行更可靠，噪音更小。

Intelligent temperature-controlled wind cooling: the usage life of fan is prolonged, which              makes module running more safely.

4. 先進的LLC諧振變換器技術：工作頻率高，開關損耗小，轉換效率高，大大減小磁性元器件體積，使模塊體積和重量大幅減小。

Advanced LLC resonant converter technology: high frequency, low switching loss, high efficiency, greatly reduce the size of magnetic components, the module size and weight significantly reduced.

5. 先進的數字控制方式：摒棄了以前所用的模擬控制方式，改用數字控制方式。模塊精度更高，響應速度更快，校驗和升級也更加方便。

Advanced digital control: to abandon the method ,which used analog-control previously, and use digital-control. Module has higher accuracy, faster response. Calibration and upgrade are more convenient.

6. 模塊支持熱插拔，使日常維護和維修方便快捷。

Module supports hot-swap, so that routine maintenance and repair quickly and easily.

獨立工作能力：模塊在脫離監控的情況下，可以正常工作。

Ability to work independently: if the module brakes away from the monitor , it can work

normally.