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 ...

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 ...

ASIC Advantage’s IPS20 and IPS21 power management ICs simplify the design of secondary-based feedback and protection circuit implementations ASIC Advantage’s IPS20 and IPS21 power management ICs ...

A newly identified part of a brain circuit mixes sensory information, memories, and emotions to tell whether things are familiar or new, and important or just "background noise." Led by researchers ...

Scientists and engineers have developed synthetic gene circuits that program the functionality, performance, and behavior of living cells. These gene circuits hold great promise in medical and ...

A newly identified part of a brain circuit mixes sensory information, memories, and emotions to tell whether things are familiar or new, and important or just 'background noise.' A newly identified ...