0
The result of rectifying AC into DC produces a pulsating DC voltage. This is usually not acceptable. Capacitors store some of the energy, and release it during the time when the recftified voltage falls to zero. This smooths out the pulsations and produces a relatively smooth, constant DC output.
What else can I help you with?
How capacitor works with ac supply?
Ti controls the capacity of power our machines use
Why does a capacitor keep its charge after the supply is disconnected?
Yes, it can. Then you can use the charge to power something else. :)
Why is rectified voltage storge in a capacitor?
Because a capacitor is ideal for storing energy over short periods, as in a reservoir capacitor in a power supply.
What is the effect on the supply current if the capacitor removed?
It depends on how the capacitor is connected and whether the supply voltage is a.c. or d.c. Assuming you are talking about a power-factor improvement capacitor (connected in parallel with an inductive load, supplied with a.c.), then the supply current will reduce.
Which filter do you use to remove pulsations from a power supply output?
There is no answer to this. If a power supply pulsates, what frequency, etc. If a power output needs filtering there are oodles of ways to do it depending on the desired result and the starting conditions. A starting point is a big capacitor.
Why you use capacitors in power supply?
You use a capacitor to store electrostatic energy. You use an inductor to store electromagnetic energy. You use a resistor to dissipate electrical energy.
How capacitor works with ac supply?
Ti controls the capacity of power our machines use
What is a smoothing capacitor?
A Smoothing Capacitor is a capacitor which helps to smooth out fluctuations that may exist on a power supply line.
Why does a capacitor keep its charge after the supply is disconnected?
Yes, it can. Then you can use the charge to power something else. :)
Why you use capacitor as a filter in power supply?
capacitor acts as a small battery ,during rectification ac to dc it gets some blank space (no current) to fill this current from capacitor is used.
What is held by power supply capacitor?
Capacitor store electrostatic energy in form of electric field.
Power supply makes a whistle noise and computer doesn't turn on?
This is caused by a blown capacitor. The electrolyte in the capacitor is boiling, and the capacitor has opened to vent the excess pressure. You will need to purchase a new power supply or have a computer technician do it for you.
What type of capacitor is often used in power-supply circuits to filter the rectified AC?
The electrolytic capacitor is most often used in power supply circuits to filter the rectified AC.
What is the function of capacitor across the supply to the fluorescent lamp when it is used?
A capacitor is placed across the supply of a fluorescent lamp circuit to correct the power factor
What is capacitor smoothing?
A Smoothing Capacitor is a capacitor which helps to smooth out fluctuations that may exist on a power supply line.
Why is rectified voltage storge in a capacitor?
Because a capacitor is ideal for storing energy over short periods, as in a reservoir capacitor in a power supply.
Why is a capacitor called a capacitor?
Due to its storing capacity.it charges for a some time and then discharges when power supply is removed.
