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WorksheetsLinear DC Power Supply Quiz
Total questions: 15
Worksheet time: 9mins
What is the main purpose of a power supply unit?
To filter the output signal
To convert AC input power to DC power
To generate AC power
To amplify the input signal
Which component is responsible for converting the AC input voltage to DC pulsating output voltage in a DC Power Supply?
Transformer
Regulator
Rectifier
Filter
What is the function of a rectifier in a DC Power Supply?
To divide the DC voltage as needed
To decrease the ripple voltage to zero
To convert AC input voltage to DC pulsating output voltage
To step down the AC input voltage
Which type of rectifier produces one sine pulse for each cycle of the input sine wave?
Half wave rectifier
Full wave rectifier
Bridge rectifier
Zener diode rectifier
What is the purpose of a filter circuit in a DC Power Supply?
To convert DC to AC voltage
To increase the ripple voltage
To smooth the output voltage
To amplify the output signal
What is the function of a voltage regulator in a DC Power Supply?
To maintain a constant output voltage
To convert AC to DC voltage
To decrease the ripple voltage
To increase the output voltage
What is the purpose of a voltage divider circuit in electronic equipment?
To amplify the output signal
To divide the DC voltage as needed
To convert DC to AC voltage
To increase the input voltage
Which type of voltage regulator circuit uses the Integrated Circuit LM7805?
LM Series 78XX
Zener Diodes
Serial Transistor
Bridge Rectifier
What is the effect of using a larger capacitor in a filter circuit?
Decreases the output voltage
Causes voltage fluctuations
Reduces the ripple voltage
Increases the ripple voltage
What is the function of the transformer in a DC Power Supply?
To convert AC to DC voltage
To regulate the output voltage
To step down the AC input voltage
To divide the DC voltage as needed
Identify the output voltage produced by the LM7912 regulator.
(a)
If one of the diodes in a full wave bridge rectifier is in an open circuit, the output is ______
0 V
a half wave rectified voltage
a full wave rectified voltage
A (a) can prevent the flow of voltage from reversing.
The three terminals of a 7805 IC voltage regulator are the _______, _________ and __________.
base, emitter, collector
gate, source, drain
input, output, ground
stage, couple, control
A (a) converts AC electricity from one voltage to another voltage with little loss of power.
