The document is a presentation on semiconductor diodes and filter circuits prepared by Dr. Shilpa K.C of the Electronics and Communication Engineering department at Dr. Ambedkar Institute of Technology. It discusses different types of filter circuits including capacitor filters, which allow AC but block DC, and inductor filters, which allow DC but block AC. The presentation also examines half-wave and full-wave rectifier circuits combined with capacitor filters, and an L-C filter circuit consisting of an inductor in series with the rectifier output and a capacitor connected in parallel with the load resistor.

1. Dr. Ambedkar Institute of Technology
Unit 1 –
SEMICONDUCTOR DIODES
Class 5
Dr. Ambedkar Institute of Technology
Dr. Shilpa K.C
Assistant Professor
Dept. of Electronics and
Communication
Engineering
Dr.AIT
3/25/2022 1
Prepared by Dr.Shilpa K.C, Dept of ECE

2. Dr. Ambedkar Institute of Technology
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Prepared by Dr.Shilpa K.C, Dept of ECE 2
Filter Circuit
Filter Circuit – The devices that converts pulsating dc components to steady dc voltage

3. Dr. Ambedkar Institute of Technology
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Prepared by Dr.Shilpa K.C, Dept of ECE 3
Filter Circuit
Filter Circuit :
a) Capacitor : A capacitor allows ac and block dc
a) Inductor : An inductor allows dc and blocks ac

4. Dr. Ambedkar Institute of Technology
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Prepared by Dr.Shilpa K.C, Dept of ECE 4
Half-wave Rectifier with Capacitor Filter

5. Dr. Ambedkar Institute of Technology
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Prepared by Dr.Shilpa K.C, Dept of ECE 5
Half-wave Rectifier with Capacitor Filter

6. Dr. Ambedkar Institute of Technology
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Prepared by Dr.Shilpa K.C, Dept of ECE 6
Half-wave Rectifier with Capacitor Filter

7. Dr. Ambedkar Institute of Technology
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Prepared by Dr.Shilpa K.C, Dept of ECE 7
Half-wave Rectifier with Capacitor Filter

8. Dr. Ambedkar Institute of Technology
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Prepared by Dr.Shilpa K.C, Dept of ECE 8
Full -wave Rectifier with Capacitor Filter

9. Dr. Ambedkar Institute of Technology
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Prepared by Dr.Shilpa K.C, Dept of ECE 9
Full -wave Rectifier with Capacitor Filter

10. Dr. Ambedkar Institute of Technology
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Prepared by Dr.Shilpa K.C, Dept of ECE 10
Full -wave Rectifier with Capacitor Filter

11. Dr. Ambedkar Institute of Technology
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Prepared by Dr.Shilpa K.C, Dept of ECE 11
Full -wave Rectifier with Capacitor Filter

12. Dr. Ambedkar Institute of Technology
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Prepared by Dr.Shilpa K.C, Dept of ECE 12
L-C Filter
Choke Filter– Choke filter consists of an inductor connected in series with rectifier output circuit
and a capacitor connected in parallel with the load resistor. It is also called L-section
filter because the inductor and capacitor are connected in the shape of inverted L.

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Prepared by Dr.Shilpa K.C, Dept of ECE 13
L-C Filter

14. Dr. Ambedkar Institute of Technology
Thank You
Dr. Ambedkar
Institute of Technology
HAVE A NICE DAY
3/25/2022 14
Prepared by Dr.Shilpa K.C, Dept of ECE