This is the traditional H bridge configuration for motors. The circuit is for currents up to 500 mA, but with higher power transistors such as the TIP31 motors up to 2 A can be controlled.
Using L144 operational, this circuit applies to other equivalent operational. The circuit is from...
This circuit has a gain of 34 dB and a good power to be used as an audio booster in cars. The...
The circuit shown in the figure can be implemented with more modern equivalent operating systems. We...