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...

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...

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...

Fortunately, a new technique permits non-invasive stability testing of such devices.1 Designers can evaluate stability by measuring (on...

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

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

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...

One characteristic of Op Amps that limits the performance of low noise and precision circuits is PSRR. The output of the Op Amp is not...

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...

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

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

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

In this article we examine the process of measuring a key performance characteristic, output impedance, using the Picotest J2130 DC Dias...

In this article we detail the process of measuring a key performance characteristic of voltage references, power supply rejection ratio...

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