I am suppose to find the Resistor values of R1, R2, and R3. I'm not sure if Im on the right track but, When the switch is open, the LED is on.
Since the LED is on that will receive a Volts high value of 2.4Volts in addition to the whats left from the 5Volts above. is that correct?
The current of 30mA is when the switch is open, if the switch was then it would short out the led and no current would flow through that branch. is this correct?
I know there is a voltage drop of 1.7 volts across the led but I don't understand the Vhigh and Vlow values in the diagram is that listed wheat it is or is it in addition to the 5volts?
Can't get the picture to show up for some reason but I include a link from my drop box
https://www.dropbox.com/s/1isiil2w163k38o/ExtraCR.jpg
Since the LED is on that will receive a Volts high value of 2.4Volts in addition to the whats left from the 5Volts above. is that correct?
The current of 30mA is when the switch is open, if the switch was then it would short out the led and no current would flow through that branch. is this correct?
I know there is a voltage drop of 1.7 volts across the led but I don't understand the Vhigh and Vlow values in the diagram is that listed wheat it is or is it in addition to the 5volts?
Can't get the picture to show up for some reason but I include a link from my drop box
https://www.dropbox.com/s/1isiil2w163k38o/ExtraCR.jpg
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