Engineers are under constant pressure to improve the performance of their products while reducing product cost. The key to doing so is a...

Many SPICE models are available online that were created by IC and semiconductor manufacturers. Unfortunately, availability doesn’t...

The mathematics behind the non-invasive measurement was incorporated into the OMICRON Lab Bode 100 VNA software, sold by Picotest.com,...

Since no impedance path is perfectly flat, we need to make some design adjustments. This article aims to help you make compromises that...

There are many good analyzers available for measuring PDN High performance VNAs are available from all of the major test equipment...

For an undamped LC circuit excited by an AC voltage source through simple phaser equations, we come to see that the circuit becomes short...

You’re probably familiar with clamp on current probes, but chances are you don’t know much about the Rogowski current probe. A Rogowski...

In 1938 Hendrik Wade Bode, who worked at Bell Labs, published his asymptotic assessment of phase margin and gain margin, bearing his name...

Some low-dropout regulators (LDOs) use multiple feedback loops to improve output voltage transient response. In many of these cases, some...

The setup in Figure 2 illustrates the impact of poor quality connectors.  In this image, the TDR is deskewed with no cables attached to...

Because of their high ESL compared to ceramic, tantalum capacitors are not the optimum choice for high frequency decoupling. Paralleling...

A frequency response analyzer (‘FRA’) is often used to measure gain and phase plots of control loops (Bode plots), filter responses and...

A single tiny logic gate The first case we’ll look at is a Fairchild NC7SZ04 ultra-high-speed inverter gate. This logic gate is a single...

The non-invasive stability assessment is a method that uses an output impedance measurement to accurately determine stability without...

Keep it flat Most PDN books tell you that the best performing PDN impedance looks flat over frequency.  That is because noise signals are...

The engineering community uses oscilloscopes more than any other piece of equipment, yet many of the published results are questionable...

The engineering community uses oscilloscopes more than any other piece of equipment, yet many of the published results are questionable...

The engineering community uses oscilloscopes more than any other piece of equipment, yet many of the published results are questionable...

Avoiding these common pitfalls will get you better data with minimum effort. Steve Sandler takes a look at four common scope mistakes and...

Steve Sandler Answers Your PDN Questions (Power Electronics’ Q&A Series) Power Electronics received a question about why PDN is measured...