INTRODUCTION

For many years I use to serch the web for initial information to create a design. It’s not hard to find a schematic diagram, but I have not seen any site that explains even the basic criteria and design techniques used to select and calculate the components. My idea is to have a basic and an advanced section. In the basic design explain the basic common configurations, most popular integrated circuits, general tips, and laboratory experiences. And in the advanced present useful and entertaining projects of medium complexity with a general explanation of its operation.