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In a single pulse semi-converter using two SCRs, the triggering circuit must produce
  • a)
    two firing pulses in each half cycle
  • b)
    one firing pulse in each half cycle
  • c)
    three firing pulses in each cycle
  • d)
    one firing pulse in each cycle
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
In a single pulse semi-converter using two SCRs, the triggering circui...
In a single pulse semi-converter using two SCRs (Silicon-Controlled Rectifiers), the triggering circuit is responsible for initiating the conduction of the SCRs. The triggering circuit generates a firing pulse to trigger the SCRs into the conducting state.
In a single pulse semi-converter, each SCR conducts for half of the input cycle. During one half cycle, one SCR conducts, and during the other half cycle, the other SCR conducts. The SCRs operate alternately to control the current flow and convert the AC input to a unidirectional output.
Therefore, the triggering circuit needs to produce only one firing pulse in each half cycle to trigger the SCR that is conducting in that particular half cycle. This firing pulse is required to synchronize the SCR's conduction with the desired timing to achieve the desired output voltage.
Hence, the correct answer is B: one firing pulse in each half cycle.
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In a single pulse semi-converter using two SCRs, the triggering circuit must producea)two firing pulses in each half cycleb)one firing pulse in each half cyclec)three firing pulses in each cycled)one firing pulse in each cycleCorrect answer is option 'B'. Can you explain this answer?
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