Single-phase Uncontrolled Rectifiers (Part 1)

How many diodes used in a half-wave rectifier's circuit?

• 1

• 2

• 3

• 4

Choose the uncontrolled full-wave rectifier's circuit diagrams.

• 
• 
• 
• 

The number of diodes used in rectifiers is not related to the AC voltage waveform.

• True

• False

To sketch a bridge rectifier quickly, we need to start the drawing by sketching the _____.

• AC source

• diodes

• frames

• DC load

During forward biased, the rectifiers' diodes ____.

• block reverse voltage with zero current flow

• block reverse voltage with a small current flow

• conduct current with a small voltage drop

• conduct current with zero voltage drop

During reverse biased, the rectifiers' diodes ____.

• block reverse voltage with zero current flow

• block reverse voltage with a small current flow

• conduct current with a small voltage drop

• conduct current with zero voltage drop

In a bridge rectifier, the output current is flowing through a different pair of diodes alternately.

• True

• False

Which diodes act as a short circuit during the positive half-cycle of the AC source?

• D1

• D2

• D3

• D4

During the negative half-cycle of the AC source, diode _____ and _____ behave as an open circuit.

• D1

• D2

• D3

• D4

Each diode in half-wave and full-wave rectifiers can only conducts current in either the positive or negative half-cycles of the AC voltage supply.

• True

• False