Many industrial and control applications use analog current loops as the physical link for measurements and actuator control. Although several ranges are used, the most popular is still the 4- to ...

Some operational amplifiers (op amps) have an inductive open-loop output impedance, which can be more complex to stabilize than op amps with resistive output impedances. One of the most common ...

On 31 July 2019, the International Society of Automation (ISA) and its promotional partner,Beamex, will co-host a free webinar on loop calibration. The webinar, which will be held from 12 p.m. to 1:30 ...

Ryoko Kishikawa (Researcher) and Masahiro Horibe (Leader), along with collaborators, have developed a technology that can easily calibrate line impedance stabilization networks (LISNs) used for ...

The recent EDN article of Bruce Trump () on the input impedance of an op-amp circuit took into account the single-pole roll-off of its loop gain. He showed with a simple derivation how the equivalent ...

A frequency response analyzer ('FRA') is often used to measure gain and phase plots of control loops (Bode plots), filter responses and general frequency domain transfer functions. The FRA generally ...