The existence of feedback loop in the baroreflex system makes it difficult to determine the open-loop transfer function characteristic of the central arc by which blood pressure (BP) modulates ...

This study suggests a method to derive an approximate but sufficient formula of an open-loop transfer function for examining the oscillation seen for power devices connected in parallel. The stability ...

One of my previous columns explains a method for calculating decreasing open-loop-gain-induced errors (Reference 1). Several readers requested a simpler error-function explanation, so this one uses op ...

Aol is the open-loop gain of an op amp, or the AC transfer function without any feedback applied. Most op amps have an Aol curve that follows a predictable response in both gain and phase. Aol is an ...

The goal of this three-part series of articles is to provide readers with an in-depth under- standing of gain accuracy in closed-loop circuits with the most typical operational amplifier (op amp) ...

From this circuit it is easy to derive the transfer function of the transimpedance amplifier. The op amp is assumed to be ideal; therefore, the inverting input is at virtual ground. C J and C CM have ...

Phase margin and gain margin are two ways of expressing how much margin of safety your feedback loop has before it becomes unstable. Phase margin is the difference between the phase of the open ...

A command line utility to analyze and solve transfer functions focusing on amplifier circuits and control loop stability. This program will let a user graph the Bode plot and phase angle of a transfer ...

Its open-loop gain is large at dc. Above a frequency determined by the pole in the phase plane caused by the stabilizing capacitance across the middle gain stage, though, its gain rolls off at 6 ...