Oscilloscopes often are used to measure power supply, linear regulator, and reference noise. Since an oscilloscope has a sensitivity in...

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 general industry trend is to make electronic products more efficient and, in general, consume less energy. One of the major...

While the graph of Fig. 1 seems straightforward, there are several issues that become apparent when one tries to make sense of what the...

The EM-6992 Probe Kit includes three magnetic (H) field and two electric (E) field passive, near-field probes and an extension handle...

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

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...

Most engineers do not have convenient access to the equipment necessary for electromagnetic compliance (EMC) or electromagnetic...

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...

Is it possible to design an unconditionally stable linear voltage regulator? In fact, many believe that most regulator ICs are...

Many articles and application notes describe the extraction of phase margin, using a non-invasive technique that extracts the phase...

Designing a reliable circuit that employs a voltage reference requires a more detailed look at device parameters than most data sheets...

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

A single, simple measurement is described that allows the determination of the ESR required to achieve a desired phase margin, using a...

A number of test signal injectors are used when evaluating the performance of power supplies and other low-frequency components with a...

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

New power semiconductor technologies such as silicon carbide (SiC) and gallium nitride (GaN) promise to rewrite the record books with...

With ESL values typically in the range of 1 nH to 5 nH, measuring the ESL of chip capacitors is not a trivial task. At present, some...

Most electronic systems contain at least one voltage regulator, with many systems requiring several regulators, each providing a...

What can be learned from the Step Load response and why we should care? When analyzing power circuits, engineers routinely evaluate the...