Typical circuits textbooks tell us that there are four basic feedback topologies. The impression is given (if not stated) that a given feedback circuit will conform to one of these four topologies.

Feedback Circuits and Two-Port Blocks, Part 1: From Circuits to Blocks with Ports introduced the concept of the port and applied it to a simple example. In this third part, a feedback circuit example ...

Maintaining perfect stability through negative feedback is a basic element of electrical circuitry, but it’s been a mystery how cells could do it — until now. Mustafa Khammash’s small Lego robot is ...

In most developing tissues, signals called morphogens act like lighthouses, guiding nearby cells toward their fate and ...

The hysteretic power supply is simpler than the voltage- or current-mode closed-loop-control dc-dc switchers, although its simplicity may be a bit deceiving due to component variations and potential ...

What is a charge sensitive amplifier and what types exist? Use of a CSA ASIC in a Deep Underground Neutrino Experiment. Details regarding the Krummenacher feedback circuit for CSAs. A charge sensitive ...