Diode - Advanced Applications

1. Diode – Advanced
Applications
Yong Heui Cho @ Mokwon University
Some of slides are referred to:
[1] A. S. Sedra & K. C. Smith, Microelectronic Circuits.

2. 2
Electronic Circuits
5. Diode – V/I
6. Diode – Basic Applications
7. Diode – Advanced Applications
8. BJT – Operational Principle

3. 3
DC-DC Converter
• Zener diode, regulator IC, LC filter
• LM2575
– 1.0 A, Adjustable Output Voltage, Step-
Down Switching Regulator

4. 4
Voltage Doubler
• Diode and C

5. 5
White LED Lamp
• Bridge rectifier, voltage divider with C,
peak detector (or filter)

6. 6
Laser Diode Driver
• Regulator IC, peak detector (or filter),
laser D, protection D
• LM371
– 3-terminal Adjustable Regulator

7. 7
Photo Alarm
• Photo D, Op-amp, LED