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Do transformer works on pulsating dc?
If the input is pulsating DC, then the output will be pulsating DC. It will not be shaped the same, but it will be close, depending on the frequency and rise and fall time in comparison with the inductive reactance of the transformer.
What device converts dc current to ac current?
A "Rectifier" converts AC current to pulsating DC current.
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.
Why the windings burn when transformer is operated in DC?
Transformers are not intended to be operated in DC. DC does not provide the continuously fluctuating current that a transformer requires in order to function. On DC, a transformer will act as a transient mode inductor, and settle out to a high current state, destroying itself.
What device can be used to increase current in a DC circuit?
Transformer or instrument transformer. It can increase and decrease current output.
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.
Do transformer works on pulsating dc?
If the input is pulsating DC, then the output will be pulsating DC. It will not be shaped the same, but it will be close, depending on the frequency and rise and fall time in comparison with the inductive reactance of the transformer.
What device converts dc current to ac current?
A "Rectifier" converts AC current to pulsating DC current.
Why transformer can not be used in dc supply?
The transformer cannot be used in the DC supply because it keeps on alternating its current, whereas the DC supply current should be constant.
Can a constant dc current induce a steady state voltage in a transformer?
No. A constant DC current of sufficient magnitude induces smoke in a transformer.
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.
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.
Why the windings burn when transformer is operated in DC?
Transformers are not intended to be operated in DC. DC does not provide the continuously fluctuating current that a transformer requires in order to function. On DC, a transformer will act as a transient mode inductor, and settle out to a high current state, destroying itself.
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.
What device can be used to increase current in a DC circuit?
Transformer or instrument transformer. It can increase and decrease current output.
Can a constant dc current can induce a steady state voltage in a transformer?
No, the current has to change for a voltage to be induced in the transformer.
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.
