Application Notes & News
Application of Micsig SigOFiT Optical-Fiber Isolated Probe
Learn how optical-fiber isolated probes enable accurate Vgs and Vds measurement in SiC MOSFET dynamic testing, minimizing parasitics and EMI for precise switching loss analysis.
Using Optically Isolated Probes to Test High-Power DC Power Supplies
Learn how high common-mode rejection optical probes, high-resolution oscilloscopes, and Rogowski current probes deliver accurate high-speed waveform measurement in power supply testing and semiconductor development.
A Common Misunderstanding About Optical-Fiber Isolated Probes
Understand the difference between differential voltage and common-mode voltage and why optical-fiber isolated probes outperform traditional differential probes in high-dv/dt SiC and GaN power circuits.
Application Example of Optically Isolated Probe in Double Pulse Testing of New Energy Vehicle Motor Controllers
Learn how optically isolated probes with high CMRR improve double pulse testing of SiC and GaN motor controllers in new energy vehicles, delivering accurate Vgs and current measurements.
Fibre optic insulated probe during the double pulse test
Optical isolation probes are essential for precise double-pulse tests on WBG semiconductors due to their high resistance.
Misunderstanding Signal Frequency in Power Device Bridge Circuits: Switching Frequency vs. Signal Bandwidth
Understand the difference between switching frequency and signal frequency in power device bridge circuits. Learn why high-bandwidth probes are critical for accurate Vgs and Vge measurements in SiC and GaN applications.
What Are Common-Mode and Differential-Mode Signals
Learn the difference between common-mode and differential-mode signals and why high CMRR is essential in optically isolated probes for accurate GaN and SiC power electronics testing.