Hey all, take a look at the circuit below.
Keep in mind that this circuit has been modified, and instead of R1 there is a reed switch, and Vout goes to a LED
I have a few questions
1: Is my interpretation of the theory of this circuit correct?
If the contacts of the magnetic reedswitch are closed, then current flows through the reed switch and sends enough current to the base to "open it" and allow current to flow from the emitter to the collector. current then passes into Vout as a result.
2: If this is correct, then how come current doesn't pass through Vout all the time, why is this the case only when the base has a small amount of current flowing into it? I know the transistor operates like a switch, but I'm having a hard time interpreting its function as i apply it to other circuits.
3: How do i determine the resistance values for the base?
Keep in mind that this circuit has been modified, and instead of R1 there is a reed switch, and Vout goes to a LED
I have a few questions
1: Is my interpretation of the theory of this circuit correct?
If the contacts of the magnetic reedswitch are closed, then current flows through the reed switch and sends enough current to the base to "open it" and allow current to flow from the emitter to the collector. current then passes into Vout as a result.
2: If this is correct, then how come current doesn't pass through Vout all the time, why is this the case only when the base has a small amount of current flowing into it? I know the transistor operates like a switch, but I'm having a hard time interpreting its function as i apply it to other circuits.
3: How do i determine the resistance values for the base?
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