U-134 APPLICATION NOTE - Texas Instruments
U-134 . APPLICATION NOTE. UC3854 Controlled Power Factor Correction Circuit Design PHILIP C. TODD. ABSTRACT. This APPLICATION Note describes the concepts and design of a boost preregulator for power factor correc- tion. This note covers the important specifications for power factor correction, the boost power circuit de- sign and the UC3854 integrated circuit which controls the converter. A complete design procedure is given which includes the tradeoffs necessary in the process. This design procedure is directly applicable to the UC3854A/B as well as the UC3854. The recommendations in Unitrode Design Note DN-39 cover other ar- eas of the circuit and, while not discussed here, must be considered in any design. This APPLICATION note supersedes APPLICATION Note U- 125 "Power Factor Correction With the UC3854.
APPLICATION NOTE U-134 boost power factor corrector is the same as that of a dc to dc boost converter. There is a diode bridge ahead of …
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