Quiz 2: Power Electronics (chapter 2)

Rectification is the process of converting alternating current or voltage into direct current or voltage

• Yes

• No

Characteristic of a single -phase full wave rectifier are

• Higher average output voltage

• higher efficiency

• high speed

• reduced ripple factor

Types of rectifier including

• Single phase half wave rectifier

• Single phase full wave rectifier

• three-phase rectifier

• all of the above

An uncontrolled rectifier uses a diode as a switch while a controlled rectifier uses an SCR as a switch

• True

• False

The Existence of an inductor in series with the load resistance will INCREASE the average output voltage.

• True

• False

The addition of a freewheeling diode parallel with an RL load will prevent the negative output voltage waveform from going negative.

• True

• False

The addition of a freewheeling diode parallel with an RL load will increase the average output voltage as well as the average output current.

• True

• False

Single phase rectifier are used in

• Low power application

• High power application

• AC speed

• induction

Three phase rectifier provides some advantages over a single phase rectifier such as

• Low average output voltage and higher ripple frequency

• higher average output voltage and higher ripple frequency

• higher average output voltage and low ripple frequency

• Low average output voltage and Low ripple frequency

Three phase rectifiers are suitable for high-power applications exceeding 5 kW.

• True

• False