Single-phase mid-point controlled rectifier with RL load
Last Answer : Single-phase mid-point controlled rectifier with RL load : The circuit configuration of single-phase midpoint controlled rectifier is shown in the figure. During positive half-cycle of ... some part of next positive half-cycle of voltage with reversed polarity can appear across load.
Single-phase Midpoint controlled rectifier with Resistive load
Last Answer : Single-phase Midpoint controlled rectifier with Resistive load: 1) During positive half cycle of AC supply, a is positive with respect to b , this makes T1 forward biased and T2 is reverse ... voltage reverses the polarity and T2 is turned off. The operation is as shown in waveforms.
When the firing angle a of a single-phase, fully controlled rectifier feeding constant direct current into a load is 30°, the displacement power factor of the rectifier is
Last Answer : When the firing angle a of a single-phase, fully controlled rectifier feeding constant direct current into a load is 30°, the displacement power factor of the rectifier is √3/2
Last Answer : Rectifier is use in power supply to convert Alternating current (AC) to Direct Current (DC) .
Last Answer : Full wave bridge rectifier is used in mobile chqrger.
Last Answer : rectifier is a device which converts AC voltage to pulsating DC voltage using one or more diode diode conducts only in unit direction that is forward bias condition practically it does not conduct ... types one is with using two diodes and Centre tap Transformer and another is bridge wave rectifier
Last Answer : NO IT ONLY CONVERT FROM AC TO DC BECAUSE DIODE WHICH ARE USED IN IT, ARE UNIDIRECTIONAL.
Last Answer : IT CHANGES NEGATIVE CYCLE IN TO POSITIVE CYCLE FROM AC CURRENT.
A three phase controlled rectifier
List out advantages and disadvantages of bridge rectifier.
Last Answer : Advantages : 1. Bridge rectifier can be used in applications allowing floating output terminals i.e. not output terminal is grounded. 2. The need of center-tapped transformer is eliminated. ... The value of the diodes used should be precise , else there will be an error in rectification
Define PIV, TUF, ripple factor, efficiency of rectifier.
Last Answer : PIV: Peak Inverse Voltage (PIV) is defined as the maximum negative voltage which appears across non-conducting reverse biased diode. TUF : Transformer Utilization Factor (TUF) is defined as the ratio of DC output ... Efficiency of rectifier: η = DC output power/ AC input power = PLdc / Pac
operation of half wave rectifier type AC Voltmeter.
Last Answer : Half-wave Rectifier Voltmeter The d'Arsonval meter movement only responds to the average or dc value of the current through the moving coil. In order to measure alternating ... ) input voltage signal alternating signal needs to be rectified first by using diode rectifier to produce
need of rectifier and filter.
Last Answer : Need of rectifier: Every electronics circuit needs a D.C. power source for its operation. The rectifier circuit is used to convert A.C. supply to unidirectional pulses . Need of filter: A filter ... only the D.C. components to reach the load. So filter is used to provide ripple free output.
Explain full wave bridged rectifier with the help of circuit diagram and input output waveform.
Last Answer : 1. In positive half cycle (0 to Π): The end A of the secondary winding becomes positive and end B negative. This makes diode D1 and D4 forward biased while diode D2 and D3 are reverse biased. These two diodes will ... D2 and D3 when it is conducting is as follows. B - D2 - RL - D3 - A
An AC supply of 230 V is applied to a half-wave rectifier circuit through a transformer having primary to secondary turn’s ratio 12:1. The peak inverse voltage is A) 8.62 V B) 12 V C) 19.17 V D) 27.11 V
Last Answer : An AC supply of 230 V is applied to a half-wave rectifier circuit through a transformer having primary to secondary turn’s ratio 12:1. The peak inverse voltage is A) 8.62 V B) 12 V C) 19.17 V D) 27.11 V
In a half-wave rectifier, if an a.c supply is 60 Hz. Then what is the a.c ripple at output? (A) 30 Hz (B) 60 Hz (C) 20 Hz (D) 15 Hz
Last Answer : In a half-wave rectifier, if an a.c supply is 60 Hz. Then what is the a.c ripple at output? (A) 30 Hz (B) 60 Hz (C) 20 Hz (D) 15 Hz
Last Answer : The rectifier instrument is not free from frequency error.
Last Answer : The scale of a rectifier instrument is linear.
Last Answer : Rectifier is a device which convert AC to DC.
Last Answer : Ac to dc
In a full wave rectifier the negative point in a circuit is (A) cathode (B) anode (C) The central tap on the high voltage secondary (D) plate.
Last Answer : In a full wave rectifier the negative point in a circuit is The central tap on the high voltage secondary
The input frequency of a bridge rectifier is 50 its output frequency will be 1. 25 Hz 2.50 Hz 3.75 Hz 4. 100 Hz
Last Answer : The input frequency of a bridge rectifier is 50 its output frequency will be 100 Hz
In a 3-phase half-wave rectifier, if per phase input is 200 V, then the average output voltage is (a) 233.91 V (b) 116.95V (c) 202.56 V (d) 101.28V
Last Answer : a
Can we use a zener diode as a rectifier?
Last Answer : Yes we can use zener diode as rectifier but it have limitations better to use normal diode. Zener diode have some different applications.
In a half wave rectifier the rms value of AC component of the waves (a) Zero (b) Equal to DC value (c) More than DC value (d) Less than DC value
Last Answer : b) Equal to DC value