JZ-22020B JZ11020C高频开关电源模块

JZ-22020B JZ11020C高频开关电源模块

JZ-22020B型高频开关电源模块采用了先进的无源PFC技术和脉宽调制软开关技术的控制技术（PWM），使得模块效率提高，谐波减小。模块采用交流三相三线制380VAC平衡输入方式，不存在中线电流损耗。模块交流输入经过尖峰抑制电路和EMI吸收电路，经全桥整流滤波电路将三相交流电压整流为脉动的直流电压，由高频脉宽调制变换器变换将脉动的直流电压成高频方波电压，再由输出整流滤波电路，得到稳定的输出电压和电流，在电网电压和负载发生变化时反馈调整电路控制脉宽调制电路，使得输出电压和电流保持稳定。

     JZ-22020Bhigh-frequency switch power-supply module is produced with theadvanced techniques of PFC and PWM. Its efficiency is enhanced andits harmonic is minished. The moduleinputs current with the equilibrium ACternary-phase 3-line380VAC so that there is no wastage inmiddle line. It input current throughpeak-restrictingcircuitry andEMI absorber circuit, and full bridge rectifier-filtercircuit whichchange the ternary-phase ACvoltage into pulsed DCvoltage, then trough high-frequency pulsed modulatorwhich change the pulsed DCvoltage into high-frequency quadrate-wavevoltage. At last, though output rectifier-filtercircuit,the stabilized voltage and current is outputted. Even when theelectric network’ voltage and load change, the voltageand current can keep stable because the feedback-modulatingcircuit controlpulse-modulating circuit.

三、技术指标 TechniqueIndexes

1. 工作环境温度：              -10～45℃

       Surroundingtemperature:         -10～45℃

2. 工作环境湿度：              ≤90％PH无结露

  Surroundinghumidity:           ≤90％PHWithout dew

3. 工作环境高度：              ≤2000m海拔

   Surroundingheight:             ≤2000mAbovesea level

4. 交流输入电压:              380V±20％

   ACinput voltage:               380V±20％

5. 交流输入频率:              50/60±2％

    ACinput frequency:             50/60±2％

6. 整定输出电压:              243VDC

    Rectifiedoutput voltage:         243VDC

7. 输出电压范围:              180～300VDC

   Outputvoltage range:            180～300VDC

8. 整定输出电流:               20ADC

     Rectifiedoutput current:          20ADC

9. 输出电流范围:              2～20ADC连续可调

       Outputcurrent range:            2～20ADCContinuous adjustable

10. 稳压精度:                ≤±0.2％

       Precisionof stabilizing voltage     ≤±0.2％

11. 稳流精度:                ≤±0.2％

       Precisionof stabilizing current:     ≤±0.2％

12. 纹波系数:                ≤±0.2％

       Ripplecoefficient:                ≤±0.2％

13. 并机不均流度：        ≤±5％(单只模块电流大于2A)

    Disequilibrium degreeof parallel-connected modules:

                           ≤±5％(Singlemodule’scurrent ＞2A)

14. 输入欠压保护：                304±2VAC

    Inputvoltage belowlimit protection:   304±2VAC

15. 输入过压保护：                456±2VAC

    Inputvoltage overlimit protection:   456±2VAC

16. 输出过压保护：                300±2V

   Outputvoltage overlimit protection:   300±2V

17. 输出限流保护：                20±0.2A

    Outputcurrent limit protection:      20±0.2A

18. 模块过热保护：                85±5℃

   Moduleoverheat protection:        85±5℃

19. 效率：                  90％

   Efficiency:                      90％

20. 冷却方式：                 温控风冷

    Coolingway:                   Temperature-controlledwind cooling

四、模块特点 ModuleCharacteristics

1. 交流输入范围宽：380V±20％

Wide range of input AC:380V±20％

2. 先进的无源PFC技术:更好地抑制高次谐波，功率因数可达0.95。Advanced PFC technique:high-frequency harmonic can be restricted better, and power factorcan be 0.95

3. 智能温控风冷方式：增加风机的使用寿命,使模块运行更可靠。

Intelligent temperature-controlledwind cooling: the usage life of fan is prolonged, which makesmodule running more safely.

4. 先进的无级调流技术：可以根据负载电流或电池容量，无级调节限流值。

Advanced stepless modulatingtechnique: it can steplessly modulate current limit valuesaccording to load current or battery’s capacitance.

5. 先进的自主均流电路：采用先进的专用均流芯片，在小电流下仍达到很好的均流效果。

Advancedself-controlled currentdividing circuit: with advancedcurrentdividing chip, the current can be divided welleven when it is very low.

6. 多级保护电路：输入级采用双臂逐个脉宽保护电路，输出限流和过电流双重保护，确保整个系统在异常情况下可靠保护。

Multi-protectioncircuit: output steps are composed ofdouble-arm gradualpulse protection circuit,and with the double-protection of output current limit andovercurrent, it can be ensured that the whole system is protectedwell under abnormal conditions.

7. 独立工作能力：模块在脱离监控的情况下，可以独立或并机正常工作。

Independent running ability: modulescan run normally by itself or connected to other machines inparallel without being monitored.

五、模块结构和功能 ModuleConfiguration AndFunctions

1．1 前面板说明  Front Panelinstruction

1. 前面板如图一。

Front panel: seeFig.1

2. 输入缺相指示灯（红色）：当模块输入缺相时，此指示灯被点亮，模块保护，无输出。当输入正常时，此指示灯熄灭，模块输出正常。

Indicatorlightof AC loss (red): it is lightened when moduledoes not input with all phase, and it does not output to protectthe module. The light goes out when module inputs normally, and italso outputs normally.

3. 输入过压指示灯（红色）：当模块输入电压高于465±2VAC时，此指示灯被点亮，模块保护，无输出。当输入正常时，此指示灯熄灭，模块输出正常。

Indicatorlightof V-In Over-L (red): it is lightened when the input voltage ismore than 465±2VAC,and the module does not output to protect itself. The light goesout when module inputs normally, and it also outputsnormally.