# How Do You Calculate Load Current Values in a Center-Tap Full Wave Rectifier?

• Engineering
• snehil31
In summary, the new poster is seeking help in solving a problem involving finding the values of Im, peak, average, RMS, ripple factor, and efficiency for a center-tap full wave rectifier. The poster has attempted to solve the problem multiple times but needs assistance. They have also been reminded by the Mentors to show their work on schoolwork problems. Additionally, the poster has attached a figure for reference.
snehil31
Homework Statement
In a centre-tap full wave rectifier shown in the figure, forward resistance of each diode is 50 Ω .

Solve for
i) Peak, Average, RMS value of load current
ii) Ripple factor
iii) Efficiency
Relevant Equations
I(avg) = (2Im/pi) , I(RMS) = Im/(root 2)
[New poster has been reminded by the Mentors to show their work on schoolwork problems]

I have tried many times to solve this problem, but can't understand how to get the value of Im and hence cannot find the Peak & other values of the load current. Please help me to solve and find the Peak, Average, RMS value of load current as well as ripple factor and efficiency of the centre-tap full wave rectifier.

Note:- The figure is attached below.

Last edited by a moderator:
snehil31 said:
I have tried many times to solve this problem
Could you show us some of that work? Also, without any smoothing capacitor, what do you think the Ripple Factor will be?

## 1. What is a full wave rectifier?

A full wave rectifier is an electronic circuit that converts alternating current (AC) into direct current (DC). It uses diodes to allow current to flow in only one direction, resulting in a smoother output voltage.

## 2. How does a full wave rectifier work?

A full wave rectifier works by using two diodes to conduct current in opposite directions during each half cycle of the input AC signal. This results in a continuous flow of current in one direction, producing a DC output.

## 3. What are the advantages of a full wave rectifier?

The main advantage of a full wave rectifier is that it produces a smoother output voltage compared to a half wave rectifier. It also has a higher efficiency and can handle larger currents, making it suitable for powering electronic devices.

## 4. What are the different types of full wave rectifiers?

There are two main types of full wave rectifiers: center-tapped and bridge. A center-tapped full wave rectifier uses a transformer with a center tap to create two separate AC signals, while a bridge full wave rectifier uses four diodes in a bridge configuration to convert the entire AC signal.

## 5. How do I calculate the output voltage of a full wave rectifier?

The output voltage of a full wave rectifier can be calculated by multiplying the peak voltage of the AC signal by 0.636. This is because the output voltage is equal to the peak voltage of the AC signal minus the voltage drop across the diode (typically around 0.7V).

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