Again my question: What is your target? (or: what is the target of your circuit?) Usually there is only one answer:voltage across V2 which determines the loop current.
Again my question: What is your target? (or: what is the target of your circuit?) Usually there is only one answer:
* Voltage V2 or
* loop current
Hi,
There is nothing special with your V2.
Even a resistor will show the same polarity like V2 in your schematic.
Any voltage limiting device acts like your V2...usually there is no need to supply your V2 circuit.....unless your V2 becomes so low that it can't drive the gate with enough voltage.
Klaus
Need to consider both current and power rating. LM317 has rated current of 1 A (plus some margin). Trying to make it sink 4A drives it into internal current limit, the voltage drop increases to reduce the current. A stronger voltage regulator or LM317 with external transistor can do the job.is LM317 is capable of sinking this current? if yes then how can we know the current sinking capability of the regulator. if no then what will happen to the regulator?
Exactly this is the problem I tried to explain.is LM317 is capable of sinking this current?
Don't agree. It can be well used as power sink, the LM317 as such is always sinking power, the power in a voltage or current regulator setup is delivered by an additional source.A LM317 is a power source unit
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