USB PD (Power Delivery)
USB Power Delivery (USB PD) is a protocol based on Biphase Mark Coding (BMC) used in devices like laptops, tablets, mobile phones, power banks, and other USB Type-C enabled devices for power supply and charging. With USB Type-C, the maximum power delivery can reach up to 240W, allowing users to charge supported devices via a USB Type-C connector.
The USB PD 3.1 specification builds on the original USB PD 3.0 by defining two power ranges: the Standard Power Range (SPR), which maintains a maximum of 100W, and the Extended Power Range (EPR), which increases the available power.
Logic Analyzer / MSO
Support Version: USB PD 3.1 ( Version1.0, Revision 3.1 ) or lower.
TB3016B | MSO3124B (w/ analog channels) |
TB3000 series Specifications PDF |
MSO3000 series Specifications PDF |
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Model | TB3016B | MSO3124B |
Decode / Trigger | y | y |
Analog Channels | y |
MSO3124B Live mode

TB3016B / MSO3124B Logic Analyzer

TB3016B / MSO3124B Protocol Analyzer

MSO3124B digital + analog channels

USB Type-C Fixture
Acute offers an optional USB Type-C Fixture to measure the USB PD signal by connecting the CC1 or CC2 and the ground pins with its logic analyzer.
*It contains both SBU pins & CC pins.
USB PD Decoding Setup Steps
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Decode SettingsChannel: Set Configuration Channel (CC) CC1 & CC2. VDM: Use the vendor defined message function when checked; users could define the SVID/Command of the Structured VDM by Edit/Refresh. Details Report: Show the details of bit parsing for the Data Obj(s) frame. Show 5b value in waveform window: Show 4b or 5b value in the waveform. |
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YouTube Video
USB PD Decoding Example
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