A-004-03: Linear and switching voltage regulator circuits
A-004-03-01:
What is one characteristic of a linear electronic voltage regulator?
The conduction of a control element is varied in direct proportion to the line voltage or load current
It has a ramp voltage at its output
A pass transistor switches from its "on" state to its "off" state
The control device is switched on or off, with the duty cycle proportional to the line or load conditions
A-004-03-02:
What is one characteristic of a switching voltage regulator?
The control device is switched on and off, with the duty cycle proportional to the line or load conditions
The conduction of a control element is varied in direct proportion to the line voltage or load current
It provides more than one output voltage
It gives a ramp voltage at its output
A-004-03-03:
What device is typically used as a stable reference voltage in a linear voltage regulator?
A zener diode
An SCR
A varactor diode
A junction diode
A-004-03-04:
What type of linear regulator is used in applications requiring efficient utilization of the primary power source?
A series regulator
A shunt regulator
A constant current source
A shunt current source
A-004-03-05:
What type of linear voltage regulator is used in applications requiring a constant load on the unregulated voltage source?
A shunt regulator
A constant current source
A shunt current source
A series regulator
A-004-03-06:
How is remote sensing accomplished in a linear voltage regulator?
A feedback connection to an error amplifier is made directly to the load
An error amplifier compares the input voltage to the reference voltage
A load connection is made outside the feedback loop
By wireless inductive loops
A-004-03-07:
What is a three-terminal regulator?
A regulator containing a voltage reference, error amplifier, sensing resistors and transistors, and a pass element
A regulator that supplies three voltages at a constant current
A regulator containing three error amplifiers and sensing transistors
A regulator that supplies three voltages with variable current
A-004-03-08:
What are the important characteristics of a three-terminal regulator?
Maximum and minimum input voltage, maximum output current and voltage
Maximum and minimum input voltage, minimum output current and maximum output voltage
Maximum and minimum input voltage, minimum output voltage and maximum output current
Maximum and minimum input voltage, minimum output current and voltage
A-004-03-09:
What type of voltage regulator contains a voltage reference, error amplifier, sensing resistors and transistors, and a pass element in one package?
A three-terminal regulator
An op-amp regulator
A switching regulator
A zener regulator
A-004-03-10:
When extremely low ripple is required, or when the voltage supplied to the load must remain constant under conditions of large fluctuations of current and line voltage, a closed-loop amplifier is used to regulate the power supply. There are two main categories of electronic regulators. They are:
linear and switching
non-linear and switching
linear and non-linear
"stiff" and switching
A-004-03-11:
A modern type of regulator, which features a reference, high-gain amplifier, temperature-compensated voltage sensing resistors and transistors as well as a pass-element is commonly referred to as a:
three-terminal regulator
nine-pin terminal regulator
twenty-four pin terminal regulator
six-terminal regulator
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