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.
Read more...Webinar: Designing in a connected environment
Design Automation
With Altium Designer and its data management platform, the team will always be up to date with the latest design documents and be able to comment on schematic, PCB, BOM and assembly drawings.
Read more...ST’s graphical no-code design software
Design Automation
MEMS-Studio is a complete desktop software solution designed to develop embedded AI features, evaluate embedded libraries, analyse data, and design no-code algorithms for the entire portfolio of ST’s MEMS sensors.
Read more...LibGSM – A powerful, modular GSM library eiTech Systems
Design Automation
Whether you are building SMS, MQTT, HTTP or other GSM-based applications, eiTech’s LibGSM library helps streamline development with its carefully structured design.
Read more...NECTO Studio V7.2 IDE with code assistant
Design Automation
MIKROE recently announced that NECTO Studio 7.2 IDE now includes NECTO Code Assistant, an AI tool that enables users to create code for multi-Click projects.
Read more...MPLAB unified compiler licenses
Design Automation
Offering an efficient way to manage multiple licenses, Microchip Technology has launched MPLAB XC unified compiler licenses for its MPLAB XC8, XC16, XC-DSC and XC32 C compilers.
Read more...MPLAB PICkit Basic ASIC Design Services
Design Automation
To make its robust programming and debugging capabilities accessible to a wider range of engineers, Microchip Technology has launched the MPLAB PICkit Basic in-circuit debugger.
Read more...Accelerating RF PCB design in a 5G world ASIC Design Services
Editor's Choice Design Automation
Billions of IoT devices coming online in the coming years will require RF design capabilities that support ultra-fast 5G speeds.
Read more...NECTO Studio has been updated
Design Automation
NECTO Studio V7.1 IDE from MIKROE now includes full programmer and debug support for Microchip tools and also adds support for Microchip’s SAM MCU and STMicroelectronics’ STM32L4 series of ultra-low-power MCUs.
Read more...Altium provides free training
Design Automation
There is no longer any excuse not to master Altium Designer with the company now offering both advanced instructor-led three-day training and an on-demand video series.
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