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The automobile alternator is already an AC device. It generates three phase delta AC, which is then rectified with a six diode full wave bridge array into DC.
You don't really want to modify it, though, as it is designed for the specific application. It is possible, though, to connect to the stator terminals and access three phase AC. You would then need to redesign the exciter (rotor) control circuit in order to manage the output.
If you are thinking about doing this as an alternative to a generator to supply your home during a power outage, don't; its not worth the effort - buy a generator.
What else can I help you with?
What kind of electricity does an alternator make DC or AC?
It makes AC ( alternating current ) . That's why it's called an alternator. A DC generator would usually be called a dynamo.
How do you couple DC motor to alternator?
Shaft(rotor) of DC motor and Alternator(AC Generator) are alligned axially and radially to each other and connected.
What is the function of a rectifier within an alternator?
A rectifier turns the Alternating Current (AC) produced by the Alternator into Direct Current (DC) that your car uses.
For a 3 phase alternator why there is an AC voltage generated in the absence DC excitation?
due to residual magnetism
How dc supply is applied to field coil in a brush less alternator?
Through a coupled inductor, similar to a transformer, but working on DC instead of AC.
Alternator generates DC or AC?
An alternator produces AC current but it is converted to DC by the rectifier inside the alternator.
Current in cars ac or DC?
The Current in a automobile is DC, you have a battery which is dc, and your alternator produces ac current but converts it to DC inside the alternator unit which gives your battery DC power. So basically everything in your car is DC.
Is there DC alternator?
An alternator is a device that converts DC (direct current) to AC (alternating current). If you need to convert AC to DC, then you need a rectifier.
How do you convert a DC generator to ac alternator?
Turn the DC generator inside out and you have an alternator .
What type of electrical current is in most automobiles?
The typical automobile operates on DC (Direct Current) even though the typical alternator produces AC (Alternating Current) which is then converted to DC.
Does a motor car emit ac or dc?
The engine itself emits nothing. The alternator does. The alternator emits AC, but it is converted to DC.
What device changes ac to dc in an alternator?
diode
What type of current produced in alternator?
Alternators usually produce AC current but in an automobile the current is fed through diodes which coverts it to DC power that the car can use.
What kind of electricity does an alternator make DC or AC?
It makes AC ( alternating current ) . That's why it's called an alternator. A DC generator would usually be called a dynamo.
How do you take both ac and DC from car alternator?
An Alternator produces AC (the clue is in the name) Alternating Current.Add in a Bridge rectifier, and it produces DC (Direct current).Basically the alternator "alternates" or switches the voltage, and the rectifier switches the opposite way, in perfect time, turnign the AC into DC.
What is the voltage of a car alternator and is it ac or DC?
It should produce 14.5v +/- and it's DC.
When a car is running is the current ac or DC?
AC (alternating current) is produced in the the alternator. It is converted to DC (direct current) in the alternator by a configuration of diodes called a bridge rectifier. The remainder of the electrical system is DC.
