Microchip has released an AC-DC reference design based on the new dsPIC33F 'GS' series of digital power digital signal controllers (DSCs). This reference design demonstrates how digital power techniques are applied to reduce component count, lower product cost, eliminate oversized components and incorporate topology flexibility to develop the best solution for the application.
The reference design unit works from a universal input voltage range and produces three output voltages, with a continuous power output rating of 300 W. The front-end power factor correction (PFC) boost circuit converts universal AC input voltages to a 420 V d.c. bus voltage. A full-bridge transformer isolated buck converter, incorporating a phase-shift zero voltage transition (ZVT) circuit, produces 12 V d.c. at 30 A from the 420 V bus. The phase-shift ZVT converter also provides output voltage isolation from the AC mains input. A multiphase synchronous buck converter then produces 3,3 V d.c. at 69 A from the 12 V d.c. bus, and a single-phase buck converter produces 5 V d.c. at 23 A from the same bus.
The reference design is powered by one of Microchip’s new dsPIC33F 'GS' series of DSCs, which controls the PFC boost circuit and the primary-side ZVT full-bridge circuit. A second 'GS' series dsPIC33F monitors the 12 V bus voltage and controls the four buck converters.
ST welcomes STM32Cube AI Studio
Design Automation
STMicroelectronics has introduced STM32Cube AI Studio, a new desktop software environment designed to simplify the deployment of artificial intelligence on STM32 microcontrollers.
Read more...NeoCortec introduces new NeoGW software
Design Automation
This is a powerful multiplatform open-source solution designed to streamline integration between the NeoMesh network and upper-level systems, whether deployed in the cloud or on-premise environments.
Read more...Keil Studio now in VSCode
Design Automation
Keil Studio, Arm’s latest IDE, now integrates embedded development tools directly into Visual Studio Code providing features like seamless industry tool integration, version control, and a CLI for CI workflows.
Read more...Quad-Apollo MxFE reference design
Design Automation
The Quad-Apollo MxFE reference design exemplifies a complete, high-performance platform for every-element direct-RF sampling digital beamforming using Analog Devices’ Apollo mixed-signal front-end technology.
Read more...MIKROE signs multi-year deal with Renesas Dizzy Enterprises
Design Automation
MIKROE has signed a multi-year MCU development tool support deal with Renesas, which commits MIKROE to providing development tools for 500 of Renesas’ most popular MCUs.
Read more...STM32CubeIDE for Visual Studio Code
Design Automation
STM32CubeIDE has moved from prerelease to official release marking a milestone in the deployment of STM32CubeIDE for Visual Studio Code.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version