Microchip has released its pure sine-wave uninterruptible power supply (UPS) reference design, which is based on the dsPIC33F 'GS' series of digital-power digital signal controllers (DSCs).
This reference design demonstrates how digital-power techniques – when applied to UPS applications – enable easy modifications through software, the use of small magnetics, intelligent battery charging, high efficiency, compact designs, low audible and electrical noise via a pure sine-wave output, USB communication and a lower overall bill-of-materials cost.
Though not available for purchase, all of the documentation, software and Gerber files needed to build this reference design can be obtained for free from Microchip’s website at www.microchip.com/offlineups.
The reference design utilises high-frequency switching techniques to implement three optimised digital power conversion stages. The push-pull DC-DC converter stage boosts the battery voltage to drive the inverter stage. The full-bridge inverter stage creates pure sine wave AC power to the load. Finally, the flyback switch-mode charger charges the battery from the AC line power.
The dsPIC33F controls all critical operations of the system, as well as the housekeeping operations. Fast and reliable switchover from mains to inverter, and vice-versa, is done intelligently to ensure that power to the load is transferred without surges and sags. The reference design also features USB connectivity and an LCD panel, for communication with the external world.
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.
Read more...Siemens’ software selected for verification and validation ASIC Design Services
Design Automation
Siemens Digital Industries Software recently announced that Veloce Strato CS and Veloce proFPGA CS have been deployed at Arm, a longtime user of Veloce, as part of its design flow for Arm Neoverse Compute Subsystems.
Read more...Enhanced graphics on STM32U3
Design Automation
ST has introduced a new program designed specifically for users working with its mainstream STM32 MCUs, including STM32C0, U0, WBA, and U3 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