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AN1279ADDENDUM

Title	Title Offline UPS Reference Design Using the dsPIC DSC
Name	Name AN1279ADDENDUM
Date	Date 06/24/2015
Application Categories	Application Categories Power Supply & Conversion / AC DC Power Supply & Conversion / DC DC Power Supply & Conversion / Digital Power Conversion
Product Categories	Product Categories dsPIC DSCs
Description	Description The reference design in this application note describes the design of an Offline Uninterruptible Power Supply (UPS) using a Switch Mode Power Supply (SMPS) dsPIC® Digital Signal Controller (DSC). The Offline UPS Reference Design consists of three major UPS topology blocks: 1)Push-Pull Converter (steps up the DC battery voltage to a constant high-voltage DC) 2)Full-Bridge Inverter (converts DC voltage to a sinusoidal AC output) 3)Flyback Switch Mode Charger (current source and charges battery with constant current)

Development Tools

Title		Part Number	Title
Digital-Pure-Sine-Wave-UPS MICROCHIP’S DIGITAL PURE SINE WAVE UNINTERRUPTIBLE POWER SUPPLY (UPS) REFERENCE DESIGN		Digital-Pure-Sine-Wave-UPS	MICROCHIP’S DIGITAL PURE SINE WAVE UNINTERRUPTIBLE POWER SUPPLY (UPS) REFERENCE DESIGN

Silicon Products

Title	Product	Title
dsPIC33CK512MP708 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK512MP708	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK512MP706 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK512MP706	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK512MP710 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK512MP710	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK64MP506 100MHz High-Performance DSC	dsPIC33CK64MP506	100MHz High-Performance DSC
dsPIC33CK512MP705 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK512MP705	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK64MP103 100MHz High-Performance DSC	dsPIC33CK64MP103	100MHz High-Performance DSC
dsPIC33CK64MP508 100MHz High-Performance DSC	dsPIC33CK64MP508	100MHz High-Performance DSC
dsPIC33CK64MP203 100MHz High-Performance DSC	dsPIC33CK64MP203	100MHz High-Performance DSC
dsPIC33CK256MP606 100 MHz Single-Core DSC	dsPIC33CK256MP606	100 MHz Single-Core DSC
dsPIC33CK128MP205 100MHz High-Performance DSC	dsPIC33CK128MP205	100MHz High-Performance DSC
dsPIC33CK64MP502 100MHz High-Performance DSC	dsPIC33CK64MP502	100MHz High-Performance DSC
dsPIC33CK128MP202 100MHz High-Performance DSC	dsPIC33CK128MP202	100MHz High-Performance DSC
dsPIC33CK32MP505 100MHz High-Performance DSC	dsPIC33CK32MP505	100MHz High-Performance DSC
dsPIC33CK32MP503 100MHz High-Performance DSC	dsPIC33CK32MP503	100MHz High-Performance DSC
dsPIC33CH512MP506 Dual Core, Two DSCs on One Chip	dsPIC33CH512MP506	Dual Core, Two DSCs on One Chip
dsPIC33CK128MP503 100MHz High-Performance DSC	dsPIC33CK128MP503	100MHz High-Performance DSC
dsPIC33CH512MP508 Dual Core, Two DSCs on One Chip	dsPIC33CH512MP508	Dual Core, Two DSCs on One Chip
dsPIC33CK256MP505 100MHz High-Performance DSC	dsPIC33CK256MP505	100MHz High-Performance DSC
dsPIC33CK512MP305 100 MHz Single-Core DSC	dsPIC33CK512MP305	100 MHz Single-Core DSC
dsPIC33CK512MP405 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK512MP405	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK256MP506 100MHz High-Performance DSC	dsPIC33CK256MP506	100MHz High-Performance DSC
dsPIC33CK256MP605 100 MHz Single-Core DSC	dsPIC33CK256MP605	100 MHz Single-Core DSC
dsPIC33CK1024MP406 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK1024MP406	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK256MP508 100MHz High-Performance DSC	dsPIC33CK256MP508	100MHz High-Performance DSC
dsPIC33CK1024MP410 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK1024MP410	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK256MP502 100MHz High-Performance DSC	dsPIC33CK256MP502	100MHz High-Performance DSC
dsPIC33CH256MP208 Dual Core, Two DSCs on One Chip	dsPIC33CH256MP208	Dual Core, Two DSCs on One Chip
dsPIC33CK256MP406 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK256MP406	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CH512MP205 Dual Core, Two DSCs on One Chip	dsPIC33CH512MP205	Dual Core, Two DSCs on One Chip
dsPIC33CK64MP206 100MHz High-Performance DSC	dsPIC33CK64MP206	100MHz High-Performance DSC
dsPIC33CK64MP105 100MHz High-Performance DSC	dsPIC33CK64MP105	100MHz High-Performance DSC
dsPIC33CK128MP508 100MHz High-Performance DSC	dsPIC33CK128MP508	100MHz High-Performance DSC
dsPIC33CK128MP506 100MHz High-Performance DSC	dsPIC33CK128MP506	100MHz High-Performance DSC
dsPIC33CK64MP102 100 MHz Single-Core 16-bit DSC	dsPIC33CK64MP102	100 MHz Single-Core 16-bit DSC
DSPIC33CK32MP102 100MHz High-Performance DSC	DSPIC33CK32MP102	100MHz High-Performance DSC
dsPIC33CK64MP202 100MHz High-Performance DSC	dsPIC33CK64MP202	100MHz High-Performance DSC
dsPIC33CK32MP202 100MHz High-Performance DSC	dsPIC33CK32MP202	100MHz High-Performance DSC
dsPIC33CK256MP306 100 MHz Single-Core DSC	dsPIC33CK256MP306	100 MHz Single-Core DSC
dsPIC33CK32MP103 100MHz High-Performance DSC	dsPIC33CK32MP103	100MHz High-Performance DSC
dsPIC33CK32MP205 100MHz High-Performance DSC	dsPIC33CK32MP205	100MHz High-Performance DSC
dsPIC33CH512MP505 Dual Core, Two DSCs on One Chip	dsPIC33CH512MP505	Dual Core, Two DSCs on One Chip
dsPIC33CH512MP208 Dual Core, Two DSCs on One Chip	dsPIC33CH512MP208	Dual Core, Two DSCs on One Chip
dsPIC33CK128MP505 100MHz High-Performance DSC	dsPIC33CK128MP505	100MHz High-Performance DSC
dsPIC33CK512MP406 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK512MP406	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK512MP306 100 MHz Single-Core DSC	dsPIC33CK512MP306	100 MHz Single-Core DSC
dsPIC33CK512MP606 100 MHz Single-Core DSC	dsPIC33CK512MP606	100 MHz Single-Core DSC
dsPIC33CK1024MP408 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK1024MP408	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CH256MP505 Dual Core, Two DSCs on One Chip	dsPIC33CH256MP505	Dual Core, Two DSCs on One Chip
dsPIC33CH256MP206 Dual Core, Two DSCs on One Chip	dsPIC33CH256MP206	Dual Core, Two DSCs on One Chip
dsPIC33CH256MP205 Dual Core, Two DSCs on One Chip	dsPIC33CH256MP205	Dual Core, Two DSCs on One Chip
dsPIC33CH256MP508 Dual Core, Two DSCs on One Chip	dsPIC33CH256MP508	Dual Core, Two DSCs on One Chip
dsPIC33CK256MP706 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK256MP706	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK64MP505 100MHz High-Performance DSC	dsPIC33CK64MP505	100MHz High-Performance DSC
dsPIC33CK256MP408 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK256MP408	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK1024MP706 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK1024MP706	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK256MP202 100MHz High-Performance DSC	dsPIC33CK256MP202	100MHz High-Performance DSC
dsPIC33CK1024MP710 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK1024MP710	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK256MP208 100MHz High-Performance DSC	dsPIC33CK256MP208	100MHz High-Performance DSC
dsPIC33CK256MP205 100MHz High-Performance DSC	dsPIC33CK256MP205	100MHz High-Performance DSC
dsPIC33CK256MP305 100 MHz Single-Core DSC	dsPIC33CK256MP305	100 MHz Single-Core DSC
dsPIC33CK256MP608 100 MHz Single-Core DSC	dsPIC33CK256MP608	100 MHz Single-Core DSC
dsPIC33CK256MP308 100 MHz Single-Core DSC	dsPIC33CK256MP308	100 MHz Single-Core DSC
dsPIC33CK32MP502 100MHz High-Performance DSC	dsPIC33CK32MP502	100MHz High-Performance DSC
dsPIC33CK32MP203 100MHz High-Performance DSC	dsPIC33CK32MP203	100MHz High-Performance DSC
dsPIC33CK128MP502 100MHz High-Performance DSC	dsPIC33CK128MP502	100MHz High-Performance DSC
dsPIC33CK128MP206 100MHz High-Performance DSC	dsPIC33CK128MP206	100MHz High-Performance DSC
dsPIC33CK512MP605 100 MHz Single-Core DSC	dsPIC33CK512MP605	100 MHz Single-Core DSC
dsPIC33CK256MP503 100MHz High-Performance DSC	dsPIC33CK256MP503	100MHz High-Performance DSC
dsPIC33CK512MP410 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK512MP410	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK512MP608 100 MHz Single-Core DSC	dsPIC33CK512MP608	100 MHz Single-Core DSC
dsPIC33CK1024MP405 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK1024MP405	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CH256MP506 Dual Core, Two DSCs on One Chip	dsPIC33CH256MP506	Dual Core, Two DSCs on One Chip
dsPIC33CK256MP405 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK256MP405	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK64MP503 100MHz High-Performance DSC	dsPIC33CK64MP503	100MHz High-Performance DSC
dsPIC33CK256MP708 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK256MP708	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK64MP205 100MHz High-Performance DSC	dsPIC33CK64MP205	100MHz High-Performance DSC
dsPIC33CK128MP203 100MHz High-Performance DSC	dsPIC33CK128MP203	100MHz High-Performance DSC
dsPIC33CK64MP208 100MHz High-Performance DSC	dsPIC33CK64MP208	100MHz High-Performance DSC
dsPIC33CK32MP105 100MHz High-Performance DSC	dsPIC33CK32MP105	100MHz High-Performance DSC
dsPIC33CK32MP206 100MHz High-Performance DSC	dsPIC33CK32MP206	100MHz High-Performance DSC
dsPIC33CK32MP506 100MHz High-Performance DSC	dsPIC33CK32MP506	100MHz High-Performance DSC
dsPIC33CK256MP203 100MHz High-Performance DSC	dsPIC33CK256MP203	100MHz High-Performance DSC
dsPIC33CK128MP208 100MHz High-Performance DSC	dsPIC33CK128MP208	100MHz High-Performance DSC
dsPIC33CK512MP408 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK512MP408	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK512MP308 100 MHz Single-Core DSC	dsPIC33CK512MP308	100 MHz Single-Core DSC
dsPIC33CK1024MP705 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK1024MP705	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CH512MP206 Dual Core, Two DSCs on One Chip	dsPIC33CH512MP206	Dual Core, Two DSCs on One Chip
dsPIC33CK256MP410 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK256MP410	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK256MP710 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK256MP710	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK256MP705 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK256MP705	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK1024MP708 ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC	dsPIC33CK1024MP708	ISO 26262-and IEC 61508-Compliant 100 MHz Single-Core DSC
dsPIC33CK256MP206 100MHz High-Performance DSC	dsPIC33CK256MP206	100MHz High-Performance DSC