Patent ID: 11875869
Assignee: NAVAL UNIVERSITY OF ENGINEERING
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 2:
3. The method of claim 2, wherein
the IGBT physical model parameter related to temperature is calculated by the following temperature empirical formulas:, τ
       ⁡
       (
       
        T
        j
       
       )
      
      =
      
       
        τ
        ⁡
        (
        
         T
         0
        
        )
       
       ×
       
        
         (
         
          
           T
           j
          
          
           T
           0
          
         
         )
        
        a
       
      
     
     ;
    
   
   
    
     (
     12
     )
    
   
  
 

 
  
   
    
     
      
       
        
         V
         
          t
          ⁢
          h
         
        
        (
        
         T
         j
        
        )
       
       =
       
        
         
          V
          
           t
           ⁢
           h
          
         
         (
         
          T
          0
         
         )
        
        -
        
         b
         ×
         
          (
          
           
            T
            j
           
           -
           
            T
            0
           
          
          )
         
        
       
      
      ;
     
    
   
   
    
     
      (
      13
      )
     
    
   
  
 

 
  
   
    
     
      
       
        K
        p
       
       (
       
        T
        j
       
       )
      
      =
      
       
        
         K
         p
        
        (
        
         T
         0
        
        )
       
       ×
       
        
         (
         
          
           T
           j
          
          
           T
           0
          
         
         )
        
        c
       
      
     
     ;
    
   
   
    
     (
     14
     )
    
   
  
 

 
  
   
    
     
      
       
        
         
          I
         
         sne
        
        (
        
         T
         j
        
        )
       
       =
       
        
         
          
           I
           sne
          
          (
          
           T
           0
          
          )
         
         ×
         
          
           (
           
            
             T
             j
            
            
             T
             0
            
           
           )
          
          d
         
        
        
         exp
         [
         
          
           (
           
            
             1
             /
             
              T
              j
             
            
            -
            
             1
             /
             
              T
              0
             
            
           
           )
          
          ×
          e
          ×
          
           10
           4
          
         
         ]
        
       
      
      ;
     
    
   
   
    
     
      (
      15
      ), in which, a, b, c, d, and e are temperature coefficients related to actual operation characteristics, and a, b, c, d, and e are determined according to an actual device; τ(T0), Vth(T0), Kp(T0) and Isne(T0) represent the lifetime of excess carrier τ, the threshold voltage Vth, the trans-conductance coefficient and an electron saturation current of the emitter at a temperature of T0, respectively; τ(Tj), Vth(Tj), Kp(Tj) and Isne(Tj) represent the values of the aforementioned physical parameters at a temperature of Tj, respectively; To is usually equal to 25° C., and Tj represents an actual operating junction temperature.