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If the firing angle in an SCR rectifier is decreased, the output is

  • If the firing angle in an SCR rectifier is decreased, the output is Increased.
  • The output voltage of an SCR rectifier is directly proportional to the conduction time of the AC input voltage.
  • The conduction time is determined by the firing angle, which is the delay between the zero crossing of the AC voltage and the moment when the SCR is triggered into conduction.
  • When the firing angle is decreased, the SCR turns on earlier in the AC input cycle, and the conduction time of the AC input voltage increases.
  • As a result, the average output voltage across the load increases, leading to an increase in the output power.