During development, embryonic cells sculpt three-dimensional tissues. Although cell polarity is commonly analysed along one, and sometimes two, dimensions, this perspective illustrates how higher ...

His solution is to add a P channel MOSFET which only allows power to flow when the polarity of the source voltage is correct. The schematic above shows the P-FET on the high side of the circuit.

A chip most often used for this purpose in single-cell applications is the Fortune ... providing over current, short circuit, and reverse polarity detection. It’s the kind of pin one might ...