diodes
To reverse bias a diode the ______ must be more positive than the ______.
Cathode, Anode
A Zener diode's primary function is to regulate ________.
Voltage
When more current is drawn from a capacitor filtered power supply the output voltage will ______.
Decrease
A bridge rectifier outputs 120VDC to a 30 Ohm load. How much current do the rectifier diodes have to conduct?
2A
A single phase full wave bridge rectifier constructed with silicon diodes will have a typical voltage drop of ______.
1.4V
A Zener diode must be ______ to regulate voltage
Reverse Biased
The rectifier with the lowest amount of ripple voltage is the ______.
Three-Phase Full Wave
To regulate voltage a Zener diode's current must not fall below ______
Izk
Increasing the load current on a capacitor filtered rectifier will cause ripple voltage to ______.
Increase
An unfiltered fullwave rectifier is supplied by an 138Vrms transformer with a center tap. What is the DC output voltage?
69V
When more current is drawn from a Zener regulated power supply the output voltage will ______.
Stay the same
An unregulated power supply outputs 15V at full load. When the load is removed the voltage rises up to 17.5V. What is the regulation of this power supply?
16.7%
A halfwave rectifier is supplied by a 100Vrms, 60Hz AC source. If enough capacitance is used to filter the output voltage flat, what is the approximate DC output voltage?
141.41
A LED is rated for 45mA of current and has a forward voltage drop of 3.2V. What size should the series resistor be if the circuit is powered from a 6V source?
62 Ohms