# Can transformer convert AC to DC?

3.0k views
Can transformer convert AC to DC?

## 9 Answers

### Answer :

No. A transformer cannot convert AC to DC. It can only transform AC power from its primary side to the secondary. However it can step up or step down the primary to secondary voltages. But the output power will always be lesser than input  power in case of an actual transformer.
On the other hand a converter (specifically a rectifier) can convert AC  power to DC power

### Answer :

For the working of the transformer there has to be alternating current, only then an emf is induced and the transformer can step up or step down the voltage.
So it can be said that input given to it is AC and the output obtained is also AC. DC never plays a role in case of transformers.
Hence. Transformers do not convert AC to DC

### Answer :

No bro, we used rectifier to convert ac power in to DC power. And in case of transformer it purely work on ac it can't be work on DC,  if we do so it will be heat dengorously and burn out.

### Answer :

Transformer are use for transforming voltage. Use rectifier to convert AC into dc

### Answer :

Transform is used to step up or step down the AC BUT it is not Possible to convert AC to DC.

however by using a center tapped step down transformer is used to convert AC TO pulsating DC.

by connecting filters to it u can get almost DC.

IN half wave and full wave rectifier transformer used for stepping down the AC not to convert AC TO DC

### Answer :

A transformer changes the level of voltage supplied but it doesn't convert AC to DC. This is achieved by inverters and oscillators.

### Answer :

No transformer cannot convert AC into DC cause we giving an alternating supply to transformer and alternating flux are generate at primary side and this fluxes are traveling through the core comes in secondary side and alternating emf is induced so we can get only AC supply at secondary side.

If we want a DC supply we can use a rectifier converts AC into DC supply at the output of transformer

### Answer :

NO IT CAN'T REMOVE FREQUENCY

### Answer :

No, Transformer cannot convert AC to DC.

## Related questions

190 views

Last Answer : Igbt alone cant convert dc to ac. igbt half bridge or full bridge or three phase topology could be used to convert dc to ac. also igbt gates should be driven by microcontroller or pwm/spwm gate driving signals ... e4(-) and g4 c2e1 and c4e3 pins are AC output pins. its name is igbt inverter.

1 answer
2.6k views
124 views

Description : How is a thyristor used to convert AC to DC?

Last Answer : thyristor

1 answer
152 views

Last Answer : NO IT ONLY CONVERT FROM AC TO DC BECAUSE DIODE WHICH ARE USED IN IT, ARE UNIDIRECTIONAL.

2 answers
142 views

Last Answer : IT CHANGES NEGATIVE CYCLE IN TO POSITIVE CYCLE FROM AC CURRENT.

2 answers
409 views

Description : State the modification to be done in dc series motor to work satisfactorily as ac series motor. State applications of ac series motor.

Last Answer : Modifications are necessary in a dc series motor so that it operates satisfactorily on ac supply. The modifications are as follows:  1) AC series motor is built with a few field turns as ... and grinders 5) High speed vacuum cleaners 6) Sewing machines 7) Food processors 8) Drilling machine

1 answer
266 views

Description : Compare the AC and DC Arc lamps.

Last Answer : AC Arc Lamp DC Arc Lamp Cross section area of electrode is same Cross section area of electrode is positive rod is twice that of negative rod Series inductor is used for stability ... supply is used for DC arc lamp Luminous efficiency is less Luminous efficiency is high

1 answer
83 views

Description : What is the advantage of AC over DC electrical transmission?

0 answers
164 views

Description : Why are DC motors used in trains and not AC motors ?

Last Answer : The reason is torque. torque is inversely proportional to speed..i.e when th knowe train comes to rest position to motion.. initial speed is zero..so it requires high starting torque for ... current will flow through field and armature coils then maximum torque is available at the intial condition.

1 answer
101 views

Description : Why is AC considered more efficient than DC?

Last Answer : Ac is more efficient than dc because it is easy to maintain and change the voltage of ac for transmission and distribution purpose. Plant cost of ac transmission is much lower compared to dc transmission. When fault occurs it is easy to interrupt ac supply.

1 answer
152 views

Description : Which is more dangerous AC or DC and why ?

Last Answer : Dc is more dangerous than Ac because in Ac the voltage  will varies but in dc the constant voltage

2 answers
105 views

Description : What is the conversion between. AC to AC ? DC to DC? AC to DC? DC to AC ?

Last Answer : 1.ac to ac is regulation 2.dc to dc is chopper 3.ac to dc is rectifier 4.dc to ac is inverter

1 answer
5.2k views

Description : Is the power line voltage available in our homes a dc or an ac voltage?

Last Answer : The power line voltage available in our homes is AC. Mobile dwellings are the most commonly DC-supplied homes and even then they tend to include AC supply for heavier loads.

1 answer
470 views

Description : Do you think is DC better than AC to transmit energy?

Last Answer : In Long distance DC transmission will be better in cost. It requires more equipments for flexiblity In short distance AC transmission is better in  cost. It is more Flexible

2 answers
471 views

Description : Distinguish between AC and DC.

Last Answer : Particulars Direct Current Alternating Current Definition It is the current whose magnitude and direction do not change with respect to time. It is the current whose ... system, electroplating, Battery charging, Traction. AC machines, Domestic and industrial supply.

2 answers
146 views

Description : The main advantage of AC over DC is:  (A) Conversion flexibility from one voltage level to other (B) AC can be easily converted into DC by using a rectifier (C) AC is easy to maintain & can be easily distributed at long distances (D) All of the above

Last Answer : Ac is easy to maintain and ac can be easily converted to dc by rectifier .There is no commutator for conversion in ac that's why ac machines are weight less and more efficiency.ac machines occupy less space than dc .

2 answers
193 views

Description : Which of the following motors can run on both AC and DC? A) Universal motor B) Dual wattage motor C) Flexible motor D) All the above

Last Answer : Which of the following motors can run on both AC and DC? A) Universal motor B) Dual wattage motor C) Flexible motor D) All the above

1 answer
319 views

Description : What is the difference between an AC and DC generator?

Last Answer : The generator which generates DC voltage is called DC generator and generator which generates AC voltage is called AC generator (or) Alternator. In DC generator armature is rotated and field winding ... generator. A DC generator can generate low voltages but an AC generator can generate upto 11kv.

1 answer
212 views

Description : Do cell phones use AC or DC current?

Last Answer : DC of course.

2 answers
138 views

Description : Is current from a battery AC or DC?

Last Answer : The current from the battery is DC

2 answers
135 views

Description : Is electricity generated in AC or DC?

Last Answer : Electricity   is  generated  in  AC.

1 answer
156 views

Description : What is the difference between AC and DC drive?

Last Answer : AC means alternating current It's Frequency is 50hz Dc means direct current ItsI Frequency is 0Hz

1 answer
84 views

Description : What is the use of AC and DC drives?

0 answers
200 views

Description : Is it AC or DC electricity in the home?

Last Answer : Obviously its A.C

4 answers
82 views

Description : are AC and DC resistances same?

Last Answer : Resistance is the ability of a circuit or element (which is called resistor) to oppose current. Examples of Resistors with the ability of high resistance are Wood, Air, Mica, Glass, Rubber, Tungsten ... constant. Therefore, only the original resistance of wire comes into play. they are not the same

1 answer
102 views

Last Answer : Induction motor is a AC motor it is also known as asynchronous motor .

1 answer
270 views

Description :  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

1 answer
152 views

Description : Why does a transformer only work with an AC supply?

Last Answer : The transformer work depends on the induction as main principle ,for that AC is the right means

3 answers
250 views

Description : Write about transformer on DC.

Last Answer : Transformer on DC : Transformer cannot work on DC. Transformer works on electromagnetic induction principle. Electromagnetic induction principle means when flux linking with coil changes and EMF induced in it ... winding insulation will burn. https://youtu.be/TVp_0fIfxqY

1 answer
1 view

Description : Can we convert pdf to rtf and txt, and how?

Last Answer : There are online converters out there that do that, here’s a program. Also this one that should do more file types.

1 answer
9 views

Description : How to Convert Decimals to Fractions

Last Answer : How to Convert Decimals to Fractions Whether it's homework for a grade school student or a business problem, math is an essential skill in life. One of the most common math problems is ... and tricks, you don't have to worry about having to grapple with complicated conversion problems anymore.

1 answer
3 views

Description : How to Convert a Car To Propane

Last Answer : How to Convert a Car To Propane Compared to ordinary fuel, liquid propane offers plenty more benefits. Not only is it less expensive than gasoline, but it's also safe for the environment. Many people ... before. Just keep an eye on the spark plugs, as many converted cars have problems with these.

1 answer
103 views

Description : Can you convert analog signal to digital?

0 answers
183 views

Last Answer : The stator of phase shifting transformer for use in conjunction with an A.C. potentiometer usually has a two-phase winding.

1 answer
579 views

Description : What will happen if the primary of a transformer is connected to D.C. supply?  (A) Transformer will operate with low efficiency (B) Transformer will operate with high efficiency (C) No effect (D) Transformer may start to smoke and burn

Last Answer : What will happen if the primary of a transformer is connected to D.C. supply?  (A) Transformer will operate with low efficiency (B) Transformer will operate with high efficiency (C) No effect (D) Transformer may start to smoke and burn

1 answer
4 views

Description : TRUE OR FALSE

0 answers
2.4k views

Description : Changeover from D.C to A.C

Last Answer : In later half of eighties, in nineteenth century, it was proposed to have a power system with 3- phase, 50 Hz A.C generation, transmission and distribution networks. Once a.c system was adopted, transmission of ... favor of A.C supply system own the debate on switching over from D.C to A.C system.

1 answer
5.3k views

Description : Describe the difference between direct and alternating current.

Last Answer : Direct current is the flow of electricity or charge in one direction..  Alternative current is the flow of charge that doesn't flow in one direction.

4 answers
124 views

Description : State any four advantages of A. C. over D. C .

Last Answer : Advantages of AC over DC: i) It is possible to use a transformer. ii) Distribution efficiency is high. iii) Generation is easy and economical. iv) Construction of ac equipment/ machines is robust and simple ... . vii) AC system is economical than DC system. viii) AC system is safer than DC system.

1 answer
249 views

Description : All the rules and laws of D.C. circuit also apply to A.C. circuit containing?

Last Answer : All the rules and laws of D.C. circuit also apply to A.C. circuit containing resistance only.

1 answer
111 views

Last Answer : If a D.C. motor is connected across the A.C. supply it will burn due to heat produced in the field winding by eddy currents.

1 answer
138 views

Last Answer : A.C. series motor as compared to D.C. series motor has smaller brush width, less number of field turns, more number of armature turns, less air gap.

1 answer
95 views

Last Answer : If a D.C. series motor is operated on A.C. supply, it will spark excessively, have poor efficiency, have poor power factor.

1 answer
216 views

Description : Explain working of static AC circuit breaker.

Last Answer : Static AC Circuit breaker: The circuit configuration of static AC circuit breaker using SCR is shown in the figure. When switch S' is closed, the SCRs T1 and T2 are fired in positive ... non-availability of gate current. Thus the maximum time delay for breaking the circuit is one half-cycle.

1 answer
949 views

Description : Explain working of AC circuit breaker using SCR with circuit diagram.

Last Answer : AC Circuit Breaker:  The circuit configuration of static AC circuit breaker using SCR is shown in the figure. When switch S' is closed, the SCRs T1 and T2 are fired in positive ... to non-availability of gate current. Thus the maximum time delay for breaking the circuit is one half-cycle.

1 answer
189 views

Description : The SCR would be turned OFF by voltage reversal of applied anode-cathode ac supply frequency of A) 10 kHz B) 10 Hz C) 5 kHz D) 5 Hz

0 answers
65 views

Description : Explain series switching control of AC load. Single phase resistance load - Integral half cycle control Phase control - Resistance load

0 answers
101 views

Description : Explain the pulse width modulation technique for control of AC output voltage.

0 answers
3.6k views

Description : Explain the principle of ON-OFF control and phase control of AC voltage controller with suitable circuit and waveforms.

Last Answer : The integral cycle control (on-off control) and phase angle control are the two types of AC voltage controller. The principle of ON-OFF control: The on-off control is also called an integral cycle ... control. In phase control, the switch is on for some period of each cycle.

1 answer
557 views

Description : A dc chopper is fed from a constant voltage mains the duty ratio of chopper is progressively increased while the chopper feeds an RL load. The per unit current ripple would  (1) increase progressively  (2 ... 0.5 and then increase  (4) increase to a maximum value at α = 0.5 and then decrease

Last Answer : A dc chopper is fed from a constant voltage mains the duty ratio of chopper is progressively increased while the chopper feeds an RL load. The per unit current ripple would increase to a maximum value at α = 0.5 and then decrease

1 answer