The ADP1047 / ADP1048are digital power factor correction (PFC) controllers that provide accurate input power metering capability and inrush current control for ac/dc systems. The ADP1047 is designed for single phase PFC applications; the ADP1048 is designed especially for interleaved and bridgeless PFC applications. The digital PFC function is based on a conventional boost PFC with multiplication of the output voltage feedback combined with the input current and voltage to provide optimum harmonic correction and power factor for ac/dc systems. All signals are converted into the digital domain to provide maximum flexibility; all key parameters can be reported and adjusted via the PMBus™ interface. The ADP1047 / ADP1048 allow users to optimize system performance, maximize efficiency across the load range, and reduce design time to market. The ADP1047 / ADP1048 provide accurate rms measurement of input voltage, current, and power. This information can be reported to the microcontroller of the power supply via the PMBus interface. APPLICATIONS * AC/DC power supplies for applications: Computing Server & Storage Network and communication infrastructure Industrial and Medical * Flexible digital power factor correction (PFC) controller * Single phase operation (ADP1047); interleaved and bridgeless operation (ADP1048) * True rms ac power metering * Enhanced dynamic response: * Optimized light load efficiency performance Output voltage adjustment Frequency reduction * Inrush current control * Switching frequency spread spectrum for improved EMI https://elecena.pl/product/2165583/digital-power-factor-correction-controller-with-accurate-ac-power-metering 2011-09-29 https://elecena.pl/product/2165583/digital-power-factor-correction-controller-with-accurate-ac-power-metering 2018-03-29 https://elecena.pl/product/2165583/digital-power-factor-correction-controller-with-accurate-ac-power-metering 2025-01-18