120v Feedback from Appliance to Inverter?
Wondering if the PSW inverter can "see" what is plugged into it. Never mind between inductive and resistive--I mean between different resistive appliances. Does each appliance have its own feedb...
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BFL13 wrote:
I am not asking this the right way, so I will try to be more technical. :)
The inverter is running just fine and the load is running just fine and the batteries are supplying the inverter just fine and all is well.
But can the appliance have some sort of twitchiness, that goes down its cord into the inverter's receptacle and tickles the inverter farther inside in its circuitry? Not to stop it from working, but just to bother it a little?
And if so, and you have two appliances doing that but in different ways or amounts, would that bother the inverter even more because the two tickles are not quite the same?
And do inverter's have some sort of filter against that tickling getting inside past their receptacles?
A well designed appliance or device should not pollute the upstream supply with noise. That said, it CAN and WILL happen. My Vizio TV does "something" to the AC supply coming from my Magnum, such that I can hear a pitch change in small ac-powered fans that are running when I turn on the TV. The TV takes an AC cord directly, there's no external power brick. It could be the TV's active power factor correction circuitry is cleaning up the AC waveform in some manner.
I recently bought an induction cooktop, a cheap Chinese unit from Amazon, and it puts out all sorts of noise, I don't know if it's radiated or on the AC line. Often it causes my infrared remote control to stop working for the TV.
The inverter does have filters on the AC output stage, since the PSW starts life as an MSW, just with many more steps. That MSW runs through filters and smoothing and comes out "pure". Those filters will help to protect the inverter's output stage (mosfets) from noise.
Another thing I've noticed, the microwave clock looses time fairly quickly when running on the Inverter, versus shore power. I imagine the PSW from the Magnum isn't as pure as what the power plant cranks out, and that messes with the clock - just an off topic observation.
edit: for your previous question regarding LEDs. The indicators or display on the inverter will be DC powered, and have no impact on the AC side of things. However, the popular eBay AC powered LED volt/amp meters, and Dollar-Store LED light bulbs, those are known culprits for having terrible power factor.
