What could be simpler than inductors? Pick one from a catalog based on saturation, inductance, DCR, etc, and you’re done. If you need...

This video focuses on single-port measurements, describing how they can be applied to low power circuits such as linear regulators,...

As Sandler explains, analysis based on impedance measurements can more thoroughly assess control loop stability than Bode plot...

In this 5-minute video presentation, Steve Sandler discusses how stability impacts circuit performance, offering examples that...

Assuming the AC signals in the measurement are very small, the power ratings of the ports limit the absolute maximum DC voltage that can...

Evaluating the stability of a Point-Of-Load (“POL”) regulator can be performed using both traditional Bode plot and output impedance...

Using a simple, but precise test set up, measurements are taken on a 1-m? 5% metal-foil current-sense resistor mounted to a small PCB....

The network analyzer, sometimes referred to as a Frequency Response Analyzer (FRA) is a common piece of equipment in most of our labs...

Maintaining clean, regulated voltage requires more than a high-quality power supply. The power distribution network (PDN)—which, together...

2 Port Shunt Thru Impedance Measurement With The Bode 100 Below are a few diagrams on how to do a 2-port impedance measurement and have...

We often give even less thought to how we connect our circuits and systems to the test equipment that we use to power and measure the...

It may come as a surprise to some that a control loop’s Bode plot does not always depict the loop stability and that the output impedance...

The resistor being measured is a 250uOhm 1% resistor manufactured by Stackpole. The datasheet is not clear about how the device...

Introduction Most of us have experience using a wideband signal injection transformer to introduce a modulation signal into our loop...

What is the difference between a Frequency Response Analyzer (FRA) and a Vector Network Analyzer (VNA)? The FRA is generally designed to...

What injection resistor value should I use? Is it okay to use a little larger resistor like 30 or 50 ohm instead of 5 ohm (like many app...

There are cases where a Bode (gain?phase) plot cannot be obtained from a control loop. For example, a three terminal regulator or hybrid...

The measurements are performed on the Picotest Voltage Regulator Test Standard (VRTS) testing board1 which comes with the regulators...

Output impedance is the key to testing filter and regulator phase margin, even when the control loop is inaccessible. Many voltage...

RF/microwave design engineers faced with developing effective power circuits for a system require more complete data sheets, appropriate...