Exam 22: Regulated Power Supplies Key

The transistor of a series voltage regulator is called a

The transistor of a series regulator is called a pass transistor because the entire load current passes through it.

A short-circuit protection circuit used with IC voltage regulators can be configured using

A basic topology for switching regulators that always produces a negative output voltage when driven by a positive input voltage is the

When analyzing a voltage regulator,what is the difference between the input and the output voltage called?

Which of the following does not affect the quality of a power supply?

Which of the following is a disadvantage of a switching voltage regulator?

Since the ripple rejection of an IC voltage regulator is high

The most basic topology for switching regulators and one that always steps the voltage down is the

What is the condition called when the regulator will cut off the pass transistor and shut down the operation if the chip temperature becomes too high?

What is often used to improve the operation and efficiency of a series regulator?

An IC that contains a positive and a negative regulator in a single IC package is a

To avoid excessive power dissipation in a regulator's series pass transistor under shorted-load conditions,a designer can add

The quality of a power supply depends on its load regulation,line regulation,and output resistance.

What is the output pin found on some monolithic boost regulators called that provides a low impedance buffer and produces a rectangular output signal?

A power supply with a load regulation of less than 1 percent means that the load voltage varies less than 1 percent over the full range of load current.

The most widely used IC regulators are those with only three pins: one for the unregulated input voltage,one for the regulated output voltage,and one for ground.

The design technique or fundamental layout of a circuit is its ________.

A well designed power supply has a

Efficiency is equal to input power divided by output power and then multiplied by 100 percent.