jojo--current can't come from nowhere, of course. But first--is that 2A steady state or a transient? If a transient, it may be from caps in the line filter. In general, caps anywhere in a system are a potential source of unexpected current flow (and voltage sparks) even after primary power is shut off. Old TVs for famous for this, with their high voltage supplies--you get get a lethal spark 30-60 minutes after shutting it off.
New versions of BASF's Ecovio line are both compostable and designed for either injection molding or thermoforming. These combinations are becoming more common for the single-use bioplastics used in food service and food packaging applications, but are still not widely available.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This radio show will show what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.