The most common approach to current measurement on oscilloscopes is to use current transformers, Rogowski coils or Hall effect clamp-on probes. High-quality magnetic probes are accurate when used within their specifications. They are also convenient when current is flowing in wires or test loops, since they do not require breaking the circuit. However, they have some intrinsic limitations. In this …
It can be challenging to consistently measure the performance of AC-DC and DC-DC converters. These challenges have become even greater as designers work to transition from silicon-based power converters to wide bandgap semiconductors such as silicon carbide (SiC) and gallium nitride (GaN). Designers of 3-phase systems such as motor drives face additional complexity.
Thankfully, help is available …
The Practice of AC Coupling and DC Reject Modes
The practice of AC coupling the scope input or using a probe with DC reject capability is very common when looking at noise and/or ripple of DC power rails. Anytime there is insufficient DC offset available, then users often elect to use AC Coupling or DC Reject settings. With the focus on clean power, we see users more interested than ever before in …
The field of power electronics is rapidly transitioning from the use of silicon semiconductor materials to wide bandgap semiconductors such as silicon carbide (SiC) and gallium nitride (GaN). One of the most common applications of GaN and SiC semiconductors is to enable smaller, faster and more efficient designs of power converters.
Power converters operate at multiple stages throughout the power …
Introduction
Deployment of AI-based technology is happening in the Data Center. The processor-intensive servers are driving up energy demands. The table below illustrates the magnitude of the impact. The International Energy Agency (IEA) predicts that data centers will account for up to seven percent of global electricity consumption by 2030; a number equivalent to the entire country of India’s …
As electric vehicles (EVs) continue to proliferate, understanding the infrastructure that supports them, particularly Electric Vehicle Supply Equipment (EVSE), or charging stations, becomes crucial. This guide explains what EVSE is, how it works, and why it's essential for the transition to electric mobility.
After learning about EVSE, take the next step to learn about EVSE test and measurement …
When constructing a test system, there might be a need to measure more signals than a single oscilloscope can capture with its available channels. To increase the number of oscilloscope channels in a test system, a common approach is to combine multiple oscilloscopes. Multi-channel measurements find application in various scenarios, such as capturing complex particle physics experiments, measuring …
Accurate energy loss measurements are one of the key objectives of double pulse testing. Eliminating the timing skew between voltage and current probes is a critical step in making accurate power and energy measurements on an oscilloscope.
The double pulse testing software (WBG-DPT), available on the 4 Series, 5 Series and 6 Series MSOs, includes a new deskew technology designed specifically for …
