This 1 kHz filter was found in the March 1997 issue of Electronics Now magazine. The circuit is applicable to any operational amplifier with a dual power source.
This circuit for measuring very low currents was found in an American documentation from the...
The charging current of this circuit is controlled by the temperature of the accumulators, which is...
This circuit was obtained from old documentation and has a very simple 6 or 12 V configuration...