Why did you still get ripple voltage at the output even though you are using zener diode to regulate the voltage?

This is because when the reverse voltage applied across the zener diode exceeds the rated voltage of the device a process called Avalanche Breakdown occurs in the semiconductor depletion layer and a current starts to flow through the diode to limit this increase in voltage.

Which rectifier conducts input cycle into output for both positive and negative?

full-wave rectifiers
Circuits that convert alternating current (AC) into direct current (DC) are known as rectifiers. If such rectifiers rectify both the positive and negative half cycles of an input alternating waveform, the rectifiers are full-wave rectifiers. Full-wave rectifiers achieve this by using a group of diodes.

What is the output of diode rectifier?

A single-phase diode rectifier converts an AC voltage at the input to a DC voltage at the output. The power flow in the circuit is unidirectional, i.e., from the AC input to the DC output only. This is a full bridge rectifier since it has two pairs of diodes.

Why is there a ripple on the DC voltage?

Ripple (specifically ripple voltage) in electronics is the residual periodic variation of the DC voltage within a power supply which has been derived from an alternating current (AC) source. This ripple is due to incomplete suppression of the alternating waveform after rectification.

Why a pn diode acts as a rectifier?

Hint: A p-n junction diode can work as an excellent rectifier since it offers a low resistance for the current to flow when it is forward biased; but a very high resistance when reverse biased. Thus, it allows current through it only in one direction and acts as a rectifier.

Why diode is used in rectifier?

A rectifier is a device that converts an Alternating Current (AC) into a Direct Current (DC) by using one or more contact diodes. Thus, the diode allows current in forwarding bias conditions and blocks current in reverse bias condition. In simple words, a diode allows current in just one direction.

How and why the output from the rectifier circuit is filtered?

The filter is a device that allows passing the dc component of the load and blocks the ac component of the rectifier output. Thus the output of the filter circuit will be a steady dc voltage. The filter circuit can be constructed by the combination of components like capacitors, resistors, and inductors.

What is negative half wave rectifier?

Unlike the positive half wave rectifier, the negative half wave rectifier allows electric current during the negative half-cycle of input AC signal and blocks electric current during the positive half-cycle of the input AC signal.