Module 4 Diodes

• Bi Junction Transistor

• Shockley Diode

• Silicon Controlled Rectifier

• LED

• Photodiode

• OLED

The forward voltage required to bias a LED on is typically:

• 0.3V

• 1.2V to 3.2V

• 0.7V

Zener Diodes are designed to operate in:

• high frequency circuits

• forward bias

• reverse breakdown

Selected the answer below that is NOT an effect of raising the temperature of a diode

• reverse breakdown happens sooner

• leakage current is less

• barrier potential/forward bias voltage is reduced

The combined barrier potential of two Germanium diodes in parallel would be

• 0.7V

• 0.3V

• 0.6V

• 1.4V

Which rectifier would typically have the largest ripple factor?

• Half Wave

• Full Wave

What is the output of this rectifier?

• 
• 
• 

Is this diode serviceable?

• Yes

• No

• Not enough info

You get this reading no matter which way you hook up the diode to the DMM.

• Diode is serviceable

• Diode failed open

• Diode failed shorted