A very simple but highly efficient combination lock circuit is shown in the figure. Any type of on/off switches can be used, varying from commercially available inexpensive types to more sophisticated ...

With so much analog-circuit design being done by automated tools and circuit-performance analysis done with tools such as Spice, it may seem anachronistic to actually go through a basic circuit in ...

A transistor tester can be a handy addition to your electronics workbench. This versatile transistor tester design, first presented a decade ago, enables you to quickly assess the functionality of NPN ...

This repository contains simple yet fundamental digital circuits built and simulated using Cadence Virtuoso. It is intended for students, educators, and enthusiasts who want to understand how basic ...

Have you ever needed to power a 12-volt relay in a circuit but only had 6 or 9 volts available? This simple circuit will solve that problem. It allows 12-volt relays to be operated from 6 or 9 volts, ...

Abstract: This paper introduces a methodology to reduce transistor count in circuits mapped using simple gates. The resulting circuits are obtained by combining state-of-the-art optimization tools to ...

Abstract: A self-aligned 12-GHz Si bipolar transistor was fabricated in a relatively poorly equipped laboratory. Emitter and base profiles were implanted and no polysilicon emitter was used. The base ...