The circuit shown is from National Semiconductor's Linear Applications Handbook. It makes use of the LM78S40 which is not an easy component to obtain today.
The switched voltage regulator shown in the figure provides an output voltage of 5 V from 32 V...
In the figure we have more circuit that makes use of transistors and that has excellent...
February 25, 2015 - Mouser Electronics, Inc. today announced their new Robotics Technology site....