Cerrar
If N1/N2=4 and the primary voltage is 120 V, what is the secondary voltage?
In a step down transformer, which is larger?
A transformer has a turns ratio of 2:1. What is the peak secondary voltage if 115 Vrms is applied to the primary winding?
With a half-wave rectified voltage across the load resistor, load current flows for what part of a cycle?
Suppose line voltage may be as low as 105 Vrms or as high as 125 Vrms in a half-wave rectifier. With a 5:1 step-down transformer, the minimum peak load voltage is closest to
The voltage out of a bridge rectifier is a:
If the line voltage is 115 Vrms, a turns ratio of 5:1 means the rms secondary voltage is closest to:
What is the peak load voltage in a full-wave rectifier if the secondary voltage is 20 Vrms?
We want a peak load voltage of 40 V out of a bridge rectifier. What is the approximate rms value of the secondary voltage?
With a full-wave rectified voltage across the load resistor, load current flows for what part of a cycle?
What is the peak load voltage out of a bridge rectifier for a secondary voltage of 12.6 Vrms? (Use second approximation)
If line frequency is 60 Hz, the output frequency of a half-wave rectifier is
If line frequency is 60 Hz, the output frequency of a bridge rectifier is
With the same secondary voltage and filter, which has the most ripple?
With the same secondary voltage and filter, which produces the least load voltage?
If the filtered load current is 10 mA, which of the following has a diode current of 10 mA?
If the load current is 5 mA and the filter capacitance is 1000 uF, what is the peak to pear ripple out of a bridge rectifier?
The diodes in a bridge rectifier each have a maximum dc current rating of 2 A. This means the dc load current can have a maximum value of
What is the PIV across each diode of a bridge rectifier with a secondary voltage of 20 Vrms?
If the secondary voltage increases in a bridge rectifier with a capacitor-input filter, the load voltage will
If the filter capacitance is increased, the ripple will
A circuit that removes positive or negative parts of a waveform is called a
A circuit that adds a positive or negative dc voltage to an input sine wave is called a
For a clamper circuit to operate properly, its RLC time constant should be
Voltage multipliers are circuits best used to produce
