Vi Microsystems Production Trainee Interview Questions and Answers

Diodes are electronic components that allow current to flow in one direction only, while semiconductors are materials with conductivity between that of insulators and conductors.

• Diodes are used in rectifiers to convert AC to DC power

• Semiconductors are used in electronic devices like transistors and integrated circuits

• Diodes have a forward voltage drop, typically around 0.7V for silicon diodes

• Semiconductors have a band

IC555 is a popular integrated circuit used in timing and oscillator applications.

• IC555 is a versatile timer IC with 8 pins.

• It can be used in astable, monostable, and bistable modes.

• It has three voltage comparators, a flip-flop, and a discharge transistor.

• IC555 can generate accurate time delays and oscillations.

• It is commonly used in LED flashers, pulse generation, and tone generation circuits.