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EVM User’s Guide. When placing measurement probes near these devices during operation, please be aware that these devices may be very warm to the touch. Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright 2003, Texas Instruments Incorporated...
............Introduction The UCC28517 module is a 100-W offline ac-to-dc voltage converter with power factor correction (PFC). The prototype was designed to show how the UCC28517 could be configured to control two dc-regulated outputs offline with one control integrated circuit.
SLUU117C − September 2002 − Revised July 2003 Schematic The schematic is broken up into three sections to make it more legible for the user. Figure 1. Section A Figure 2. Section B UCC28517 EVM...
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SLUU117C − September 2002 − Revised July 2003 Figure 3. Section C UCC28517 EVM...
SLUU117C − September 2002 − Revised July 2003 Figure 6. Bottom View Electrical Characteristics UNITS V IN V RMS Output A Output B 11.4 12.6 Output A Efficiency Output B Efficiency P OUT A P OUT B Output Ripple A Output Ripple B UCC28517 EVM...
V IN = 265 V 0.95 V IN = 85 V V IN = 175 V 0.90 V IN = 85 V 0.85 P OUT − Output Power − W P OUT − Output Power − W Figure 9 Figure 10 UCC28517 EVM...
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