Is it possible to implement this circuit operation?

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Homework Help Overview

The discussion revolves around the feasibility of implementing a specific circuit operation involving LEDs and switches, with constraints on the components that can be used, including op-amps, diodes, and transistors. The original poster seeks to understand if a digital logic circuit can be formed using only diodes and resistors.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants explore the possibility of creating a digital logic circuit with the specified components, particularly focusing on the use of diodes and resistors. There is a discussion about the distinction between diode/resistor logic and resistor/transistor logic.

Discussion Status

The discussion includes various interpretations of the original question, with some participants suggesting that while diode/resistor logic may not be feasible, the use of transistors could provide a solution. There is an ongoing exploration of the concepts involved, but no consensus has been reached.

Contextual Notes

Participants are working within the constraints of allowed components for the project, which may influence their reasoning and suggestions. The original poster's question about the specific logic circuit setup is central to the discussion.

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Homework Statement


When switch A is turn on , LED 1 will light up When switch B is turn on , LED 2 will light up. When one of the LED is turn on , all other LED will not turn on. When the LED is turning on and if you are to press another switch , it will have no effect at all. what I mean is no other LED will turn on

In this project , I am only allowed to use the following component.
opamp , zener diode , led , resistor , capacitor , p or n mosfet , NPN BJT or PNP BJT , diode , temperature sensor , LDR , speaker , trimmer , switch(normal) , pusb-button switch , infra red emitter , red detector
.

Homework Equations

The Attempt at a Solution


Is it possible to form a digital logic circuit using diode and resistor?
 
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Yes - it's called RTL or resistor-transistor logic. (wikipedia has it covered.)
 
ToonBlue said:
Is it possible to form a digital logic circuit using diode and resistor?

Daz said:
Yes - it's called RTL or resistor-transistor logic. (wikipedia has it covered.)
Uh ... Daz, how to you jump from the question about diode/resistor logic to resistor/transistor logic? They are not the same thing.
 
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ToonBlue said:
Is it possible to form a digital logic circuit using diode and resistor?
No, but since you are allowed to use transistors you don't have that problem.
 
phinds said:
Uh ... Daz, how to you jump from the question about diode/resistor logic to resistor/transistor logic? They are not the same thing.

I misread - that's how. Oops. Anyway RTL or DTL would do.
 

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