There’s trouble ahead for the MPS: it’s not reliable enough yet, and can enter a “zombie mode” whereby the µC won’t have enough voltage to start up, while drawing so much current (relatively speaking) that the energy source isn’t able to raise the voltage further.
Leading to some beautiful pictures, but nevertheless totally undesired behaviour:
The daily articles in this week’s episode are:
- Pretty picture, ugly effect – Wed
- An improved MPS circuit – Thu
- It’s all about the startup “hump” – Fri
- Investigating the voltage doubler – Sat
So far, it looks like this second MPS design solves the problems of the first. Progress!
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