Need of Capacitor in the Regulator Circuit
What is the need of capacitor in the regulator circuit?
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A capacitor holds a lot of electric charge in it when the regulator is switched on. But it takes a lot of time to charge up.
In case there is a higher voltage at the input, the capacitor does not respond quickly. The high voltage spikes during fractions of seconds are absorbed by the capacitor and routed to the ground.
In case the voltage falls below certain level, the capacitor supplies some charge required by the equipment. The capacitor prevents increase or decrease in voltage at the input from appearing at the output.
In case there is a higher voltage at the input, the capacitor does not respond quickly. The high voltage spikes during fractions of seconds are absorbed by the capacitor and routed to the ground.
In case the voltage falls below certain level, the capacitor supplies some charge required by the equipment. The capacitor prevents increase or decrease in voltage at the input from appearing at the output.
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