The Effects of Passive Probe Ground Leads
This article explains how the inductance of passive probe ground leads can dramatically reduce effective bandwidth, distort measurements, and introduce resonance and frequency-response errors.
Wide-bandgap power devices demand high bandwidth and superior CMRR, making probe selection critical for accurate high-voltage upper-side measurements.
Power conversion relies on fast-switching MOSFETs and IGBTs that use low-voltage gate-drive signals to control high-voltage, high-current switching efficiently.
While built-in isolated inputs offer convenience and safety, high-quality isolated probes deliver superior noise immunity and performance in fast-switching, high-voltage environments.
In the example to follow, we will show how to use the Teledyne LeCroy 3-phase Power Analysis software or
A simple in-circuit test reveals how a differential probe’s CMRR behaves across frequencies and how closely it matches published specifications in real measurement environments.