The components used in this National Semiconductor circuit are not common today, but the configuration can be adapted to use more modern components.
Several circuits similar to this one can be found on our website. This is from an internet...
The LM12 is a high-power operational amplifier capable of providing a 4 A output current with a 40...
The A3906 integrated circuit from Allegro MicroSystems (www.allegro.com) consists of a single-step motor...