#### Question

A student wants to use two p-n junction diodes to convert alternating current into direct current. Draw the labelled circuit diagram she would use and explain how it works.

#### Solution

The student will use a full wave rectifier.

Two diodes are used to give rectified O/P corresponding to both positive as well as negative half cycles.

When the voltage at A with respect to the centre tap is positive, and the voltage at B is negative. Then, D_{1} is forward biased and D_{2} is reversed biased. Hence, D_{1} conducts and D_{2} does not.

When the voltage of A becomes negative, then B becomes + ve. Therefore, D_{1} does not conduct and D_{2} conducts. Hence, we obtain output voltage during both the positive as well as negative half of cycle.

Is there an error in this question or solution?

#### APPEARS IN

Solution A Student Wants to Use Two P-n Junction Diodes to Convert Alternating Current into Direct Current. Draw the Labelled Circuit Diagram She Would Use and Explain How It Works. Concept: p-n Junction.