SMJE 2133 Voltage Regulator

Line regulation is a measure of how constant the output voltage is for a given change in the input voltage.

• True

• False

Load regulation depends on the amount of power dissipated in the load.

• True

• False

Two types of linear regulator are series and bypass.

• True

• False

Current limiting is used to protect the external bypass transistor.

• True

• False

In the case of line regulation,

• when the temperature varies, the output voltage stays constant

• when the output voltage changes, the load current stays constant

• when the input voltage changes, the output voltage stays constant

• when the load changes, the output voltage stays constant

 In the case of load regulation,

• when the temperature varies, the output voltage stays constant

• when the input voltage changes, the load current stays constant

• when the load changes, the load current stays constant

• when the load changes, the output voltage stays constant

 All of the following are parts of a basic voltage regulator except

• control element

• sampling circuit

• voltage-follower

• error detector

The basic difference between a series regulator and a shunt regulator is

• the amount of current that can be handled

• the position of the control element

• the type of sample circuit

• the type of error detector

In a basic series regulator, Vout is determined by

• the control element

• the sample circuit

• the reference voltage

• the sample circuit and reference voltage

The main purpose of current limiting in a regulator is

• protection of the regulator from excessive current

• protection of the load from excessive current

• to keep the power supply transformer from burning up

• to maintain a constant output voltage