Go  List PASS
                            FAIL                                            
Inrush Current       N/T                                             
                            N/A                                            
Model :   240W SFF
APFC
          Date : 2023/4/20         Reference                                            
                                                                         
1.      Equipment :                                                                      
               (1)    AC Source : Chroma 61505                                                                
              (2)    DC Load : Chroma 63102/63103                                                                
                (3)    Oscilloscope : Tektronix TDS 5054                                                                      
(4)    Current Probe : Tektronix TCPA400/FLUCK 80i-110S  
                                                                         
2.      Test Condition :                                                      
  (1)    AC Input Voltage :  240V                                                   
  (2)    Input Frequency : 50HZ                                                  
  (3)    Load Condition : Load 4                                                  
  (4)    Temperature :Room Ambient Temperature( Hot  Start )/AC ON_OFF 3 cycles                                        
                                                         
3.      Spec :                                                      
Any initial current surge or spike of 10ms or less will not exceed initial inrush current peak. Any  The I2T of Input Fuse shall less 22% of component rating or depends on customer requirement.
additional inrush current surges or spikes in the form of AC cycles or multiple AC cycles greater than 10ms,  The First Inrush current will flow through bridge diode, bypass diode (if avaiable), 
and less than 1150ms, must not exceed secondary inrush current peak. After 1150ms the AC input current  PFC shunt resistor (if available), so need to confirm if the device can sustain inrush current
must meet the requirements in Section 2.1 of the PSU parametric specification. The inrush due to the EMI filter  The Second inrush current will flow through PFC diode, so need to confirm if the device can 
capacitors can be ignored. For any conditions during turn-on the inrush current will not open the primary input  sustain this inrush current
fuse or damage any other components.   
 
The inrush limiting circuitry shall be designed such that if the active bypass circuitry (if applicable) is not           
functional the remaining circuitry shall minimize any smoke/flame potential. 
               
             
  Parameter Description   Min Tye Max Unit                                                      
  Initial In-rush Current       180 Amps (peak)                                                      
  Secondary In-rush Current       180 Amps (peak)                                                      
                                                       
  *The Inrsuh Current to be measured with Input Voltage at 240Vac, half load, 35degrees Celsius, burn-in 0.5 hour.                                                      
4.      Test Result : PASS                                                          
 
Initial inrush (0-10mS)      
Input Voltage Input  Voltage phase angle Test Result
Hot  Start                       
240Vac
50Hz
Pk  Current
 ( A )
90o 54.98A
Spec (Pk  Current ) < 180A
         
Secondary Inrush (Start-up 10-1150ms)
Input Voltage Input  Voltage phase angle Test Result  
Hot  Start(burn-in 0.5 hour)                         
Pk  Current  ( A )  
240Vac
50Hz
0o 48.47A
45o 35.28A
90o 42.69A
135o 46.95A
Spec (Pk  Current ) < 180A  
240Vac Initial
Cold Start 3                [1]  
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(1)AC in(2)Iin
240Vac Secondary / Cold Start
0deg 45deg
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tek00007.png
(1)AC in(2)Iin (1)AC in(2)Iin
90deg 135deg
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(1)AC in(2)Iin (1)AC in(2)Iin

[1]
xiao_wei:
料表里面改成12R