With this circuit it is possible to obtain a voltage of -5 V from a 5 V source. The circuit is from Radio Electronics from May 1982. The maximum current is around 80 mA.
This circuit appears in other articles in this section, but it is very interesting. It is a...
This Linear Technology circuit can measure currents from 100 pA to 100 uA. The circuit is from the...
This circuit for an isolated instrument or multimeter can increase the sensitivity of your...