Microchip Technology Announces Pure Sine Wave Uninterruptible Power Supply (UPS) Reference Design Based on the dsPIC33F “GS” Series of Digital-Power Digital Signal Controllers (DSCs)


The Pure Sine Wave Uninterruptible Power Supply (UPS) Reference Design demonstrates how digital-power techniques—when applied to UPS applications—enable easy modifications through software, the use of smaller magnetics, intelligent battery charging, higher efficiency, compact designs, lower audible and electrical noise via a purer sine-wave output, USB communication and a lower overall bill-of-materials cost. Microchip’s UPS Reference Design utilizes high-frequency switching techniques to implement three optimized digital power-conversion stages. The dsPIC33F “GS” series of digital-power DSCs is the heart of this Offline UPS reference design. 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…

Pure-Sine-Wave-UPS-Reference Design
Pure-Sine-Wave-UPS-Reference Design

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