Component that reduces difference between no load and full load voltage by ameliorating the regulation

Which component reduces the difference between no load and full load voltage by ameliorating the regulation when connected across the output of filter?

Options:

a. Shunt Capacitor
b. Series Inductor
c. Bleeder Resistor
d. Silicon Controlled Rectifier

Correct Answer: c. Bleeder Resistor

Explanation:

Bleeder resistor is most often configured across the output of filter so as to improve or enhance the voltage regulation.

This resistor results in initial voltage drop by acting as a pre-load on the supply.

Therefore, small amount of additional voltage drop gets generated due to connection of real load in the circuit configuration.

Thus, it becomes easier to figure the difference between no-load and full-load voltage and ultimately reduce it by improving the regulation level.

Bleeder resistor renders a path for filter capacitor for discharging purpose in the absence of power supply ( or when power supply is switched off) and hence it is generally referred as a 'Bleeder Resistor'.

One major advantage of the bleeder resistor is that it invigorates the capability to improve the filtering action by controlling minimum current through the choke.