Key facts
- Brand
- MICROCHIP
- Model
- DS70320B
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 2
- Languages
- ZH · EN
- Last added
- 2026-09-30
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Microchip DS70320B SMPS AC/DC Reference Design User Guide
This guide explains how to use the Microchip SMPS AC/DC reference design, including system specifications, block diagrams, hardware and software design, and system operation. It provides detailed information on the PFC boost converter, full‑bridge ZVT converter, single‑phase and three‑phase synchronous buck converters, and auxiliary power supplies.
The document also includes appendices with board layout and schematics, test results such as soft‑start, output ripple, input current THD and power factor, and a list of reference materials. Warranty registration instructions and links to Microchip support resources are provided. This manual is written in Chinese.
All Microchip DS70320B documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
How do I register the warranty for the reference design?
Fill out the included Warranty Registration Card and mail it promptly to receive product update information.
From: Microchip DS70320B SMPS AC/DC Reference Design User Guide
Where can I obtain the latest software version for this design?
Visit the Microchip website (www.microchip.com) to download the latest software releases.
From: Microchip DS70320B SMPS AC/DC Reference Design User Guide
What is the purpose of the DS70320B design?
It is used as a development tool to emulate and debug firmware on a target board.
From: Microchip DS70320B SMPS AC/DC Reference Design User's Guide
Where can users find the latest documentation?
Users should refer to the Microchip website at www.microchip.com.
From: Microchip DS70320B SMPS AC/DC Reference Design User's Guide