How to Test a MOSFET in 30 Seconds – No Fancy Tools Needed!─影片 Dailymotion

VBsemi

In this video, I’ll show you a simple, reliable method to test whether a MOSFET is functioning properly—no advanced equipment required! Whether you’re repairing electronics, building a project, or just troubleshooting, this quick test can save you time and money.  ✅ What you’ll learn:  How to test a MOSFET with just a multimeter  Identify common failure symptoms  Understand the logic behind the test (inspired by Von Neumann’s principles!)  📌 Tools needed:  Multimeter  MOSFET (N-channel or P-channel)  If you found this helpful, please 👍 like, 💬 comment, and 🔔 subscribe for more practical electronics tips!

Transcript

00:00How to quickly test MOSFET functionality

00:02Using the MMOs we previously discussed as an example

00:06Inside the drain and source terminals of a MOSFET

00:09There exists a parasitic diode

00:12Using the diode test function on a multimeter

00:15Directly measure the conduction state

00:17Of either the drain or source terminal

00:20Reverse cutoff indicates

00:22The MOSFET is functioning normally

00:24If conduction occurs in both forward and reverse directions

00:28It indicates the MOSFET has been damaged

How to Test a MOSFET in 30 Seconds – No Fancy Tools Needed!

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