This design is a digitally controlled, bridgeless, 300W, power factor correction (PFC) converter. The distinguishing characteristic of a bridgeless PFC converter is that it eliminates the need for a diode bridge at the input. This reduces power losses that normally occur in a diode bridge and, as a result, improves overall system efficiency. For this design, a C2000™ Piccolo™ TMS320F28035 microcontroller (MCU) is the digital controller for the PFC converter, controlling the two boost power stages that comprise the bridgeless PFC converter. By operating the stages alternatively during the positive and negative half cycles of the AC mains voltage, the Piccolo MCU implements both the AC-to-DC rectification as well as power factor control. This design achieves full load efficiency greater than 93% and power factor of greater than 0.98 at 50% or greater load.
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TI 제품을 설계 및 잠재적 대안에 포함합니다.
CAUTION: This equipment operates at high voltages and currents which can result in hazardous electrical shock. Please make sure you understand and follow all necessary safety precautions prior to purchasing and operating.
TMDSHVBLPFCKIT is a DIMM100 controlCARD based motherboard evaluation module (...)
| 유형 | 직함 | 최신 영어 버전 다운로드 | 날짜 | ||
|---|---|---|---|---|---|
| 애플리케이션 노트 | Digitally Controlled Bridgeless Power Factor Correction (BL PFC) using C2000 MCU (Rev. A) | PDF | HTML | 2020. 10. 29 | ||
| 사용 설명서 | Digitally Controlled BL PFC Converter Quick Start Guide | 2014. 5. 27 |