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I agree with Brian. If you think your the problem is suppressed by addition of capacitor then the actual problem could be the transients at the output of the inverted. The high amplitude transients are common in inverters.
What i understand is the sensor is going to be in an environment where the temperatures can go as low as -30C. The PoE concept may be good but i am not sure how the cabling is going to be maintained without any failures. So i would guess powering the sensor by battery as a workable solution...
I am not sure why you are facing problem for powering a remote sensor. If you can specify the power requirements for the sensor and any applicable limitations, then some sort of solution can be worked out.
For PoE, i have not used this anytime, i did some quick search and understand that it is...
Yes, in case you are drawing higher peak currents then the battery voltage may drop down because of high internal impedance. You can use a bulk capacitor or super capacitor to supply for these peak current requirements for the sensor and still have acceptable voltage at supply terminals. As you...
I guess you are trying to provide supply to a far away sensor and get the sensor output back. In this case i don't think there is any point in looking to power a sensor from distance of 1.5km, instead you can use battery for that matter. And for getting the feedback from the sensor, you should...
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