Transcription of AN1279 - Offline UPS Reference Design Using the dsPIC DSC
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AN1279 - Offline UPS Reference Design Using the dsPIC DSC
2009-2011 Microchip Technology 1AN1279 UPS OVERVIEWAn Uninterruptible Power Supply, or UPS, is anelectronic device that provides an alternative electricpower supply to connected electronic equipment whenthe primary power source is not auxiliary power, a UPS can provide instantpower to connected equipment, which can protectsensitive electronic devices by allowing them to shutdown properly and preventing extensive physicaldamage. However, a UPS can only supply energy for alimited amount of time, typically 15 to 20 its use can extend to a virtually unlimited listof applications, in past years the UPS has becomeeven more popular as a means of protecting computersand telecommunication equipment, thus preventingserious hardware damage and data Markets for UPS SystemsUPS systems provide for a large number of applica-tions in a variety of industries. Their common applica-tions range from small power rating for personalcomputer systems to medium power rating for medicalfacilities, life-support systems, data storage, and emer-gency equipment, and high power rating for telecom-munications, industrial processing, and onlinemanagement systems.
Aug 02, 2011 · and the primary current meas urement (IP) protects the converter in case of transformer flux walking. The PWM outputs from the dsPIC DSC are firing pulses to the driver to control the output voltage. Table 2 lists the resources used by the dsPIC DSC device for a push-pull converter. FIGURE 5: PUSH-PULL CONVERTER RESOURCE DIAGRAM
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