How to Use and Oscilloscope to Demodulate PWM Signals in Single and Three-phase Power Conversion Designs
Date: Wednesday, February 5, 2025
Time: 11:00AM Pacific | 2:00PM Eastern
Duration: 60 minutes with Live Q&A
Pulse-width modulation (PWM) is the foundation for controlling voltage and frequency outputs of digital power conversion devices. Viewing the modulation envelopes of the PWM voltage outputs of your design provides insight into whether your control circuit is operating correctly. This analysis is straightforward for simple single-phase Line-Reference PWM voltages but gets more complicated with Line-Line voltage probing in 3-phase systems. Join Teledyne LeCroy to learn more about how to use any oscilloscope to perform this analysis.
In this session, we will do a deep dive into the specifics of measuring and validating clock oscillator and clock signal integrity in your designs.
Topics covered in this webinar:
- Basic PWM theory and operation
- What is overmodulation and why is it used?
- Simple Line-Reference PWM voltage de-modulation
- Complex Line-Line (3-phase) PWM voltage de-modulation
- What de-modulation envelopes can tell you about control system behavior
Who should attend? Control, Inverter subsection, power section and power system engineers who use oscilloscopes to understand power conversion control system and power section functioning.
What attendees will learn? Gain a better understanding about how to use common oscilloscope math and analytics tools to understand, validate and debug control system PWM signaling.
Presented By: Jon Shechter, Teledyne LeCroy Product Marketing Engineer
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Can’t attend live? Register anyway and you will receive an email with the recording and slides after the live event.