CHAPTER 2
DIODE APPLICATIONS
1. An open primary or secondary winding of a power supply transformer results in
0 V
2. The output frequency of a half-wave rectifier is _________to/of the input frequency
Equal
3. What is the average value of the half-wave rectified voltage given 25 V as its peak amplitude?
7.95 V
4. The PIV rating of the bridge diodes is __________to/than that required for the center-tapped configuration.
Less
5. Diode circuits used to clip off portions of signal voltages above or below certain levels,
Clippers
6. The output frequency of a full-wave rectifier is ________ the input frequency
Twice
7. A transformer is generally specified based on _____________rather than the turns ratio,
Secondary voltage
8. The period of a full-wave rectified voltage is ____________ that of a half-wave rectified voltage
Half
9. The indication of the effectiveness of the filter is called
Ripple factor
10. Eliminates the fluctuations in the rectified voltage and produces a relatively smooth dc voltage
Filter
11. Circuit that maintains a constant dc voltage for variations in the input line voltage or in the load
Regulator
12. A type of full-wave rectifier that uses two diodes connected to the secondary of a center-tapped transformer
Center-tapped rectifier
13. Use clamping action to increase peak rectified voltages without the necessity of increasing the transformer’s voltage rating
Voltage multipliers
14. Maximum voltage appearing across the diode in reverse bias
PIV
15. Caused by the charging and discharging of the filter capacitor
Ripple voltage
16. A systematic process of isolating, identifying, and correcting a fault in a circuit or system
Troubleshooting
17. Allows unidirectional current through the load during the entire 360° of the input cycle
Full-wave rectifier
18. Allows current through the load only during one-half of the cycle.
Half-wave rectifier
19. Generally used because of the surge current that initially occur s when power is first turned on
Slow-blow type fuse
20. A figure of merit used to specify the performance of a voltage regulator
regulation
DIODE APPLICATIONS
1. An open primary or secondary winding of a power supply transformer results in
0 V
2. The output frequency of a half-wave rectifier is _________to/of the input frequency
Equal
3. What is the average value of the half-wave rectified voltage given 25 V as its peak amplitude?
7.95 V
4. The PIV rating of the bridge diodes is __________to/than that required for the center-tapped configuration.
Less
5. Diode circuits used to clip off portions of signal voltages above or below certain levels,
Clippers
6. The output frequency of a full-wave rectifier is ________ the input frequency
Twice
7. A transformer is generally specified based on _____________rather than the turns ratio,
Secondary voltage
8. The period of a full-wave rectified voltage is ____________ that of a half-wave rectified voltage
Half
9. The indication of the effectiveness of the filter is called
Ripple factor
10. Eliminates the fluctuations in the rectified voltage and produces a relatively smooth dc voltage
Filter
11. Circuit that maintains a constant dc voltage for variations in the input line voltage or in the load
Regulator
12. A type of full-wave rectifier that uses two diodes connected to the secondary of a center-tapped transformer
Center-tapped rectifier
13. Use clamping action to increase peak rectified voltages without the necessity of increasing the transformer’s voltage rating
Voltage multipliers
14. Maximum voltage appearing across the diode in reverse bias
PIV
15. Caused by the charging and discharging of the filter capacitor
Ripple voltage
16. A systematic process of isolating, identifying, and correcting a fault in a circuit or system
Troubleshooting
17. Allows unidirectional current through the load during the entire 360° of the input cycle
Full-wave rectifier
18. Allows current through the load only during one-half of the cycle.
Half-wave rectifier
19. Generally used because of the surge current that initially occur s when power is first turned on
Slow-blow type fuse
20. A figure of merit used to specify the performance of a voltage regulator
regulation
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