Reference 1 LED: Red 3 - ctools.ece.utah.edu€¦ · RTh= Ra || b Rb RTh= Ra || Rb R a R Voltage...
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R Th = R a || R b R Th = R a || R b R a R b Voltage Reference R pot = R a + R b V CC G = R b R a +R b R a R b Voltage Reference R pot = R a + R b V CC G = R b R a +R b 10 9 LED: Red LED: Red R d D i * LED = <v Th –1.5 V <R Th +R d *LED on if <v Th > 1.5 V LED: Green LED: Green R d D i * LED = <v Th –1.5 V <R Th +R d *LED on if <v Th > 1.5 V <R Th <R Th 3 4 R Th = 0 Ω R Th = 0 Ω Reference Reference COM COM Reference Reference COM COM 2 4 1 3 16.1 16.1 16.1 16.1 16.1 16.1 16.1 16.1
Transcript of Reference 1 LED: Red 3 - ctools.ece.utah.edu€¦ · RTh= Ra || b Rb RTh= Ra || Rb R a R Voltage...
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