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Answer by Andy aka for How/why exactly does this JFET work as a current source?
N-channel JFETAn N-channel JFET is a "natural" at being a decent constant current sink.Here's the J107 as an example: -The vertical axis is current and, the horizontal axis is time (in which the...
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Answer by Simon Fitch for How/why exactly does this JFET work as a current...
This is a model of the microphone internals, except for C1, which is outside:simulate this circuit– Schematic created using CircuitLabI am able to connect C1 to ground in this model, instead of the...
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Answer by glen_geek for How/why exactly does this JFET work as a current source?
Why doesn't the output then swing to the positive or negative voltagerail if the voltage at the negative input terminal fluctuatessinusoidally?Voltage at opamp "-ve" input doesn't fluctuate from mic...
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How/why exactly does this JFET work as a current source?
I am designing a mic amplifier with a transimpedance amplifier circuit. The mic is connected to a JFET. I know how a transimpedance amplifier works and that it works by converting current into a...
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