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Is there a pulsating current dc transformer?
Yes, an example is an automobile's ignition coil, which is energised from the battery, via the contacts within the distributor. The contacts open and close, supplying the ignition coil with pulsating current.
Is transistor is use for transfer pulsating Dc into the pulsating DC?
A transistor is primarily used to amplify or switch electronic signals and can indeed be utilized in circuits that convert pulsating DC into another form of pulsating DC. However, its primary function is not to transfer but to control and modulate signals. In applications like switching power supplies or pulse width modulation (PWM) circuits, transistors can effectively manage and modify pulsating DC voltage. Thus, while they can work with pulsating DC, the term "transfer" may not fully capture the transistor's role in these applications.
Does electrical transformer use a DC or AC source?
A transformer is a device to convert high voltage AC to low voltage AC & vice-versa. It works on the principle of induction. Since induction occurs only in an AC supply, a transformer cannot work on DC.. So, it is not possible to convert DC supply to AC using transformer. You would need an inverter to convert DC to AC.
What is the Frequency of pulsating dc?
The frequency of pulsating DC, often referred to as pulsating direct current, is determined by the rate at which the voltage alternates between its maximum and minimum values. In a typical scenario, this frequency corresponds to the frequency of the alternating current (AC) supply from which it is derived, such as 50 Hz or 60 Hz. Pulsating DC can be generated through rectification of AC, leading to a waveform that oscillates but does not alternate in polarity. The frequency of the pulsating DC is thus defined by the rectification process and any filtering applied to the output.
Can a transformer work using dc?
no. because if we use dc source for transformer there will be no production of energy for the secondary side since they are mutually conducted, as the transformer is a static device which can transmite the energy from one circuit to other with out changing the frequency and also there is no movement of the conductors. in order to produce the emf there should be either conductor movement or moving flux so the dc source will produce constant field flux hence there is no production of energy in the secondary side.
Does transformer works on DC?
I should think not
Why diodes are used after center tapped transformer in dc to ac inverter?
Diodes are used after a center-tapped transformer in a DC to AC inverter to rectify the alternating current (AC) output of the transformer into pulsating direct current (DC). This rectified voltage is then smoothed using filters to produce a more stable DC waveform. The diodes act as one-way valves, allowing current to flow in only one direction, thus converting the AC voltage into a pulsating DC voltage.
What does filter do in a transformer?
A transformer does not use a filter. You may be asking about the use of a filter in a power supply. A power supply uses a filter to change pulsating DC from the rectifier into smooth DC for the circuits that the power supply powers.
Is there a pulsating current dc transformer?
Yes, an example is an automobile's ignition coil, which is energised from the battery, via the contacts within the distributor. The contacts open and close, supplying the ignition coil with pulsating current.
Which type of transformer is used in mobile charger?
The transformer used in mobile is pulse transformer which operates at very high frequency pulsating DC in order to make charger energy efficient and light weight.
Why transformer do not operate with DC?
Transformer works with varying flux. DC won't create it. Only AC produce varying flux.
What is the pulsating DC frequency?
When AC full wave is rectified into DC by using bridge rectifier .The DC do not actually behave like an ordinary DC and the DC has a constant value .In fact, it is in pulsating form.This is known as Pulsating DC.
Why transformer is connected to ac?
Because of how a transformer works. Basically a transformer have a primary and a secondary winding sitting close to each other, with the primary connected to the ac source. Pushing ac through the primary wionding creates a pulsating magnetic field. Pushing a pulsating magnetic field through the secondary winding creates an electric current in it. That current will also be ac, but dependent on the number of turns in the windings it will have another voltage. DC don't give a pulsating magnetic field from the primary winding, and a stationary magnetic field won't generate any electricity in the secondary winding.
Why transformer works on ac not dc give two reasons?
A transformer requires a changing input to generate an output.
Do transformers work on DC supply?
No, unless you have a pulsating DC
Is transistor is use for transfer pulsating Dc into the pulsating DC?
A transistor is primarily used to amplify or switch electronic signals and can indeed be utilized in circuits that convert pulsating DC into another form of pulsating DC. However, its primary function is not to transfer but to control and modulate signals. In applications like switching power supplies or pulse width modulation (PWM) circuits, transistors can effectively manage and modify pulsating DC voltage. Thus, while they can work with pulsating DC, the term "transfer" may not fully capture the transistor's role in these applications.
Is welding transformer a frequency changing transformer?
Not really. Frequency in is frequency out, unless there is some conversion circuit in between, such as a motor-generator set or some kind of inverter. You may (and should) notice, however, that a typical welding transformer is rectifying three phase AC to DC, using a full wave rectifier. This results in a pulsating DC voltage where the ripple frequency is 360hz.
