Which device arrangement is used to convert alternating current into direct current?

Which device arrangement is used to convert alternating current into direct current?

• A. Passive filters
• B. Ripple amplitude
• C. Three-phase Rectifier
• D. Cutoff Frequency

Answer: (C)

Rectification is converting alternating current into direct current using a rectifier arrangement. In a rectifier, diodes conduct only in one direction, blocking the opposite half-cycle, which turns the AC waveform into pulsating DC. A three-phase rectifier uses six diodes arranged as a bridge across the three input lines. As each phase becomes forward-biased in sequence, two diodes conduct at a time, delivering a continuous flow of current in one direction and producing DC output with less ripple than a simple single-phase rectifier. The six-pulse setup gives a higher average DC level for a given AC input and smoother output. The other options refer to smoothing or filter characteristics, not the conversion device itself, so they don’t describe how AC is turned into DC.

Rectification is converting alternating current into direct current using a rectifier arrangement. In a rectifier, diodes conduct only in one direction, blocking the opposite half-cycle, which turns the AC waveform into pulsating DC. A three-phase rectifier uses six diodes arranged as a bridge across the three input lines. As each phase becomes forward-biased in sequence, two diodes conduct at a time, delivering a continuous flow of current in one direction and producing DC output with less ripple than a simple single-phase rectifier. The six-pulse setup gives a higher average DC level for a given AC input and smoother output. The other options refer to smoothing or filter characteristics, not the conversion device itself, so they don’t describe how AC is turned into DC.