Download - Reference 1 LED: Red 3 - ctools.ece.utah.edu€¦ · RTh= Ra || b Rb RTh= Ra || Rb R a R Voltage Reference Rpot = Ra + Rb VCC G = Rb Ra+Rb R a R b Voltage Reference Rpot = Ra + Rb

RTh= Ra || Rb

RTh= Ra || Rb

Ra

Rb

Voltage Reference

Rpot = Ra + Rb

VCCG =

RbRa+Rb

Ra

Rb

Voltage Reference

Rpot = Ra + Rb

VCCG =

RbRa+Rb

10

9

LED: RedLED: Red

Rd

D

i*LED

= <vTh –1.5 V<RTh+Rd

*LED on if <vTh > 1.5 V

LED: GreenLED: Green

Rd

D

i*LED

= <vTh –1.5 V<RTh+Rd

*LED on if <vTh > 1.5 V

<RTh

<RTh

3

4

RTh= 0 Ω

RTh= 0 Ω

ReferenceReference

C O MC O M

ReferenceReference

C O MC O M

2

4

1

3

16.1 16.1

16.1 16.1

16.1 16.1

16.1 16.1

R R

R R

R R

R R