beautypg.com

PASCO EM-8656 AC_DC ELECTRONICS LABORATORY User Manual

Page 69

background image

65

012-05892A

AC/DC Electronics Laboratory

®

Data Table 2: Bi-Color LED

Description

Voltage (V) at 2 mA

Voltage (V) at -2 mA

5. Bi-Color LED

Questions

In Unit One, what does the plot of Diode Current versus Voltage mean?

In Unit Two, which LED has the lowest turn-on voltage? Which LED has the highest turn-on
voltage?

In Unit Two, how does the forward turn-on voltage for the Bi-Color LED compare to any of the
colored LED’s? How does the reverse turn-on voltage for the Bi-Color LED compare to any of
the colored LED’s?

Contrast and compare the Bi-Color LED with a “Zener” diode.