WorksheetsDiode Rectifier
Total questions: 15
Worksheet time: 10mins
Average voltage (VDC) of a center-tapped full wave rectifier output is determine by
2 Vp/π
Vp/π
Vp /2π
1.414 Vp
In a full wave rectifier if the input signal frequency is 50Hz, then the output frequency is
25 Hz
50 Hz
100 Hz
12.5 Hz
Rectifier is used to convert ac to (a)
Which image shows the output of a sine-wave after it has gone through a half-wave rectifier?
The number of diodes used to build a center-tapped full wave rectifier
1
2
3
4
The basic purpose of a filter is to
Minimize variations in ac input signal
rectify the input signal
Remove ripples from the rectified output
Stabilize DC output voltage
The formula to convert Vrms to Vpeak is
Vpeak =
2× VrmsVpeak = Vrms ÷2
Vpeak = 2 x Vrms
Vrms = Vpeak ÷π
Determine the forward biased diodes at the negative cycle of the voltage source.
D2 & D3
D1 & D2
D3 & D4
D1 & D4
Which figure shows the output waveform of Full Wave Bridge Rectifier
The peak voltage of the signal in the figure is 15 V. Calculate the Vdc
4.77 V
2.39 V
10.61 V
9.55 V
Given:
Input signal (Vin) = 110 Vpeak
Ratio Npri to Nsec is 10:1D1,D2,D3 and D4 are silicon diode
Determine the peak voltage across RL
11 V
9.6 V
15.5 V
10.3 V
Identify the circuit that (B) represents from the block diagram of DC power supply
Rectifier circuit
Regulator Circuit
Transformer Circuit
Filter Circuit
To construct a good rectifier, the ripple factor should be
As low as possible
Moderate
As high as possible
none of the above
Peak inverse voltage for a diode is the
maximum voltage that can be applied across the diode in the forward biased
voltage corresponding to rated maximum voltage
maximum voltage that can be applied across the diode in the reverse biased
the minimum voltage appearing across the diode in reverse bias
When voltage applied to a diode is more than PIV, it is likely to result in
Powerful diode
Poor regulation
More distortion on output side
Breakdown at the junction
