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which rectifier used in mobile charger?
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asked
Sep 13, 2017
by
anonymous
mobile
charger
rectifier
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2
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answered
Feb 8, 2018
by
NITIN DESHMUKH
bridge rectifier
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May 22, 2018
by
Neha8235
Full wave bridge rectifier is used in mobile chqrger.
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Related questions
asked
Aug 9, 2017
by
anonymous
wireless mobile charger
wireless mobile charger
Last answer:
it is simply the wireless transfer of the electricity such in transformer the EMF is induced in the neighbouring called because of change in the voltage in primary coil show the phenomenon of mutual inductance is at a very high level and energy can transfer in through the air or another medium
wireless
mobile
charger
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1
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asked
Aug 18, 2019
by
anonymous
Why does the charger become hot while charging mobile phone?
Why does the charger become hot while charging mobile phone?
Last answer:
Charging depends on time duration. If your phone battery is very low and you are using your phone with battery draining app like YouTube, the charger will be forced by the phone to ... temp of electrical components like transistors. Junction temperature will be larger as junction current is higher.
charger
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51
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asked
May 21, 2020
by
anonymous
Draw the circuit diagram of battery charger using SCR and explain it’s working.
Draw the circuit diagram of battery charger using SCR and explain it’s working.
Last answer:
Battery charger circuit using SCR: The figure shows the battery charger circuit using SCR. A 12V discharged battery is connected in the circuit and switch SW is closed. The singlephase 230V ... not fired. In this way, after full charging, further charging is automatically stopped.
circuit
diagram
battery
charger
scr
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1
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asked
Sep 13, 2017
by
anonymous
why rectifier is used in power supply ?
Last answer:
Rectifier is use in power supply to convert Alternating current (AC) to Direct Current (DC) .
rectifier
power
supply
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1
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asked
Aug 6, 2019
by
anonymous
Define the following terms : (i) Base Station (ii) Control Channel (iii) Mobile Station (iv) Page
Define the following terms : (i) Base Station (ii) Control Channel (iii) Mobile Station (iv) Page
Last answer:
i) Base Station: - A fixed station in a mobile radio system used for radio communication with mobile stations. Base stations are located at the center or on the edge of a coverage region ... the page throughout the service area using base stations which broadcast the page on a radio carrier.
base
station
control
channel
mobile
page
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84
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asked
Sep 13, 2017
by
anonymous
which rectifier is more efficient?
Last answer:
the efficiency of centre tapped full wave rectifier and bridge rectifier is same that is 80.2% but the because of the use of Central trap the Transformer utilisation factor It's become low.hence we can say the bridge rectifier is more efficient
rectifier
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asked
Oct 13, 2019
by
anonymous
Single-phase mid-point controlled rectifier with RL load
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
mid-point
controlled
rectifier
rl
load
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asked
Oct 13, 2019
by
anonymous
Single-phase Midpoint controlled rectifier with Resistive 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.
single-phase
midpoint
controlled
rectifier
resistive
load
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asked
Apr 29, 2018
by
anonymous
When the firing angle a of a single-phase, fully controlled rectifier feeding constant direct current into a
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
firing
angle
single-phase
fully
controlled
rectifier
feeding
constant
direct
current
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asked
Sep 13, 2017
by
anonymous
what is rectifier and its types?
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
rectifier
types
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asked
Sep 13, 2017
by
anonymous
can rectifier convert dc to ac?
Last answer:
NO IT ONLY CONVERT FROM AC TO DC BECAUSE DIODE WHICH ARE USED IN IT, ARE UNIDIRECTIONAL.
dc
rectifier
ac
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2
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asked
Sep 13, 2017
by
anonymous
how does rectifier convert ac to dc?
Last answer:
IT CHANGES NEGATIVE CYCLE IN TO POSITIVE CYCLE FROM AC CURRENT.
rectifier
ac
dc
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asked
Sep 13, 2017
by
anonymous
rectifiers are used to convert?
Last answer:
Ac to dc
rectifier
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asked
Apr 26, 2018
by
anonymous
In a half-wave rectifier, if an a.c supply is 60 Hz. Then what is the a.c ripple at output?
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
half-wave
rectifier
ripple
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asked
May 16, 2020
by
anonymous
List out advantages and disadvantages of bridge 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
bridge
rectifier
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asked
May 2, 2020
by
anonymous
Define PIV, TUF, ripple factor, efficiency of rectifier.
Define PIV, TUF, ripple factor, efficiency of rectifier.
Last answer:
Peak Inverse Voltage (PIV): The maximum value of reverse voltage (for the diode in a rectifier) occurring at the peak of the negative cycle of the input cycle is called Peak Inverse Voltage. ... dc power delivered to the load to the ac input power from the secondary winding of the transformer.
define
piv
tuf
ripple
factor
efficiency
of
rectifier
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asked
Sep 4, 2019
by
anonymous
operation of half wave rectifier type AC Voltmeter.
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
operation
half
wave
rectifier
ac
voltmeter
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asked
Aug 19, 2019
by
anonymous
need of rectifier and filter.
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.
rectifier
filter
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asked
Jul 24, 2019
by
anonymous
Type of rectifier??
rectifier
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asked
Sep 5, 2018
by
anonymous
Explain full wave bridged rectifier with the help of circuit diagram and input output waveform.
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
full
wave
bridged
rectifier
input
output
waveform
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asked
Jun 18, 2018
by
anonymous
An AC supply of 230 V is applied to a half-wave rectifier circuit through a transformer having primary to
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
ac
supply
half-wave
rectifier
circuit
transformer
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asked
Mar 21, 2018
by
anonymous
The rectifier instrument is not free from?
Last answer:
The rectifier instrument is not free from frequency error.
rectifier
instrument
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152
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1
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asked
Mar 21, 2018
by
anonymous
The scale of a rectifier instrument is?
Last answer:
The scale of a rectifier instrument is linear.
scale
rectifier
instrument
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113
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1
answer
asked
Sep 21, 2017
by
anonymous
What is rectifier?
Last answer:
Rectifier is a device which convert AC to DC.
rectifier
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1
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asked
May 17, 2018
by
anonymous
In a full wave rectifier the negative point in a circuit is
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
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42
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1
answer
asked
May 13, 2018
by
anonymous
In a 3-phase half-wave rectifier, if per phase input is 200 V, then the average output voltage is
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
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2
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asked
Jan 18
by
anonymous
From the national point of view, which of the following indicates micro approach? (1) Study of sales of mobile phones by BSNL (2) Unemployement among Women (3) Per capita income in India (4) Inflation in India
From the national point of view, which of the following indicates micro approach? (1) Study of sales of mobile phones by BSNL (2) Unemployement among Women (3) Per capita income in India (4) Inflation in India
Last answer:
Study of sales of mobile phones by BSNL
economics
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3
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1
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asked
May 13, 2018
by
anonymous
The input frequency of a bridge rectifier is 50 its output frequency will be
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
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62
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1
answer
asked
Dec 9, 2017
by
anonymous
Can we use a zener diode as a rectifier?
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.
zener
diode
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2.5k
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1
answer
asked
May 26, 2020
by
anonymous
Name the circuit used in rectifier to minimize ripple. List the types of this circuit with simple circuit diagram.
Name the circuit used in rectifier to minimize ripple. List the types of this circuit with simple circuit diagram.
Last answer:
Rectifier filter is an electronic circuit that removes ripple or unwanted AC signal components from the output of a Rectifier. Types - (a) Series Inductor filter (d) Shunt capacitor filter (b) L-C type filter (e) Π - type filter
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36
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1
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asked
May 13, 2018
by
anonymous
Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector
Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector
Last answer:
Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector
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87
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1
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asked
Jun 18, 2018
by
anonymous
Which of the following thyristors can be used for high frequency of operation?
Which of the following thyristors can be used for high frequency of operation? A) TRIAC B) DIAC C) SCR D) GTO
Last answer:
Which of the following thyristors can be used for high frequency of operation? A) TRIAC B) DIAC C) SCR D) GTO
thyristors
used
high
frequency
operation
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81
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1
answer
asked
May 3, 2018
by
anonymous
Which circuit is used as amplitude comparator?
Which circuit is used as amplitude comparator?
Last answer:
Schmitt trigger circuit is used as amplitude comparator.
circuit
used
amplitude
comparator
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188
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1
answer
asked
Jan 10
by
anonymous
Preethi owns lenova mobile in a showroom. she labelled the price of mobile to earn a profit of 20% on the cost price. she sold the mobile by offering a discount of 10% on the labelled price. What is the actual percent profit earned?
Preethi owns lenova mobile in a showroom. she labelled the price of mobile to earn a profit of 20% on the cost price. she sold the mobile by offering a discount of 10% on the labelled price. What is the actual percent profit earned?
Last answer:
Let the CP of mobile= Rs 100 Then the labeled price= Rs.120 SP= Rs. 120-10%of 120 = RS120-12= Rs 108 Gain= Rs 108- Rs 100 = Rs 8 Gain%= 8/100*100=8%
profit-and-loss
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3
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1
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asked
Jan 8
by
anonymous
Explain handoff procedure in mobile communication.
Explain handoff procedure in mobile communication.
Last answer:
Assume that there is a call going on between two parties over a voice channel. When the mobile unit moves out of coverage area of a particular cell site the reception becomes weak. Then the cell ... arranges the handoff requests in a queue instead of rejecting them, if the new cell sites are busy.
computer
network
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9
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1
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asked
Oct 10, 2020
by
anonymous
How much time we should use mobile in a day ?
How much time we should use mobile in a day ?
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42
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0
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4 days
ago
by
anonymous
When two semiconductors of pand n-type are brought in contact, they form p-n junction which acts like a/an (1) Conductor (2) Oscillator (3) Rectifier (4) Amplifier
When two semiconductors of pand n-type are brought in contact, they form p-n junction which acts like a/an (1) Conductor (2) Oscillator (3) Rectifier (4) Amplifier
Last answer:
Rectifier
physics
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3
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1
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asked
3 days
ago
by
anonymous
What is the name of the device used to convert alternating current into direct current ? (1) Ammeter (2) Galvanometer (3) Rectifier (4) Transformer
What is the name of the device used to convert alternating current into direct current ? (1) Ammeter (2) Galvanometer (3) Rectifier (4) Transformer
Last answer:
Rectifier
physics
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2
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1
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asked
5 days
ago
by
anonymous
The device used to change the speed of an electric fan is (1) Amplifier (2) Regulator (3) Switch (4) Rectifier
The device used to change the speed of an electric fan is (1) Amplifier (2) Regulator (3) Switch (4) Rectifier
Last answer:
Regulator
physics
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1
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1
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asked
Jan 10
by
anonymous
Mani went to purchase a mi mobile handset, the shopkeeper told him to pay 25% tax if he asked the bill. Mani manages to get the discount of 10% on the actual saleprice of the mobile and he paid the shopkeeper Rs.3275 without tax. Besides he manages to avoid to pay 25% tax on the already discounted price, what is the amount of discount that he has gotten?
Mani went to purchase a mi mobile handset, the shopkeeper told him to pay 25% tax if he asked the bill. Mani manages to get the discount of 10% on the actual saleprice of the mobile and he paid the shopkeeper Rs.3275 without tax. Besides he manages to avoid to pay 25% tax on the already discounted price, what is the amount of discount that he has gotten?
Last answer:
CP = 100, SP (with tax) =125 New SP = 100 - 10 = 90 Effective discount = 125-90 = 35 So, at SP of 90 ----> discount = 35 and at SP of 3275-----> discount = 35/90*3275= Rs 1274(approx.)
profit-and-loss
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5
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1
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asked
Jan 10
by
anonymous
By selling a mobile at 52% discount, a seller incurs a loss of 8%. The marked price of the product is 18000 Rs. At what percent discount the seller should sell the mobile so as to have a profit of 33%.
By selling a mobile at 52% discount, a seller incurs a loss of 8%. The marked price of the product is 18000 Rs. At what percent discount the seller should sell the mobile so as to have a profit of 33%.
Last answer:
Since, Marked Price = 18000 Therefore, Selling Price = 18000*0.48 = 8640 Loss of 8% is there Therefore, Cost price = 8640/0.92 = 9391.30Rs To have profit of 33% The Selling Price should be = 9391. ... should be 18000 - 12490.42 = 5509.58Rs Discount% should be [5509.58/18000]*100 = 30.60 ≈ 31%.
profit-and-loss
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4
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asked
Jul 13, 2019
by
anonymous
How to check mobile crane boom limit switch
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49
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asked
Apr 3, 2018
by
anonymous
Write the model number and detailed specification of your/friend’s mobile telephone.
Distributed under Creative Commons Attribution-ShareAlike - CC BY-SA.
Last answer:
Manufacturer Model: Network Types: EGSM/ GSM /CDMA Form Factor: The industry standard that defines the physical, external dimensions of a particular device. The size, configuration, and other specifications used ... Speaker Phone: USB: Vibrate: Version 2 EE IIT, Kharagpur
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91
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1
answer
asked
Sep 18, 2017
by
anonymous
How the touch screen of mobile works?
Last answer:
There are two major type of screen type ;LED,LCD. They are embedded widh sensors which opperate at diffrent principles according to the manufacture's choice .Some opperate ... Some also opperate when the light emmited by your screen is blocked by your finger.
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86
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2
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asked
Sep 13, 2017
by
anonymous
can zener diode be used in forward bias?
Last answer:
Yes it can be, and it will act like a normal PN junction diode. The characteristic of ZENER diode is exactly same as PN junction diode in forward Bias.
zener
diode
forward
bias
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114
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1
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asked
Sep 13, 2017
by
anonymous
why igbt is used in vfd?
Last answer:
IGBT or Insulated Gate Bi-polar Transistors are typically semiconductor devices aka. controlled switches, which find their applications in Power Electronics circuits such as Inverters, and electrical ... ( buy implementing suitable Pulse Width Modulation scheme ) * Lower cost
igbt
vfd
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1
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asked
5 days
ago
by
anonymous
The device which converts AC to DC is (1) Oscillator (2) Amplifier (3) Rectifier (4) None of these
The device which converts AC to DC is (1) Oscillator (2) Amplifier (3) Rectifier (4) None of these
Last answer:
Rectifier
physics
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11
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1
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asked
May 25, 2018
by
anonymous
An HVDC link consist of rectifier, inverter transmission line and other equipments. Which one of the following
An HVDC link consist of rectifier, inverter transmission line and other equipments. Which one of the following is true for this link ? (A) The transmission line produces/ supplies reactive power (B) The rectifier consumes reactive power and the inverter supplies reactive power from/ to the respective connected ... power to/ from the respective connected AC systems (D) Both the converters (rectifier and inverter) consume reactive power from the respective connected AC systems
Last answer:
An HVDC link consist of rectifier, inverter transmission line and other equipments. Which one of the following is true for this link ? (A) The transmission line produces/ supplies ... ) Both the converters (rectifier and inverter) consume reactive power from the respective connected AC systems
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153
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asked
May 13, 2018
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anonymous
A single-phase full-bridge diode rectifier delivers a load current of 10A, which is ripple free.
A single-phase full-bridge diode rectifier delivers a load current of 10A, which is ripple free. Average and rms values of diode currents are respectively (a) 10A, 7.07A (b) 5A, 10A (c) 5A, 7.07A (d) 7.07A, 5A
Last answer:
A single-phase full-bridge diode rectifier delivers a load current of 10A, which is ripple free. Average and rms values of diode currents are respectively 5A, 7.07A
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247
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asked
Apr 12, 2018
by
anonymous
Which rectifier can convert AC to DC?
Which rectifier can convert AC to DC? A. Half wave rectifier B. Full wave rectifier C. Bridge wave rectifier D. All of these
Last answer:
Which rectifier can convert AC to DC? A. Half wave rectifier B. Full wave rectifier C. Bridge wave rectifier D. All of these
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...