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Thursday 10 December 2015

Electrical Interview:TURN ON TIME OF SCR

Delay Time: Practically delay time depends on gate signal magnitude Ig. If Ig increase,initial conduction area increases due this rate of raise of anode current increases therefore Td delay time decreases and turn ON time decrease.                                                                                                                                                          
Raise Time: Raise time in the SCR depends on load parameters for example L is increases the di/dt of SCR decrease and raise time increase then turn ON time increase.                                                  
                 
 Spread Time: Spread time depends on the physical geometrical structure of the device.                                       
                 From above conclusion for inductive loads turn ON time is higher.                

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