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Industry’s First Digital Power Factor Correction Controller with Power Metering Offers Interleaving and Bridgeless Functionality

17th November 2011

Analog Devices

ES Admin

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Analog Devices has announced the ADP1048, the first interleaved digital power factor correction (PFC) controller with highly accurate AC power metering capability. Similar to the ADP1047 single-phase digital PFC controller (announced March, 2011), the interleaved (or dual-phase) ADP1048 uses conventional, continuous-conduction-mode PFC techniques to reduce harmonic distortion. The ADP1048 can be configured as an interleaved design to reduce inductor size and replace the AC/DC rectifier to improve efficiency in bridgeless boost mode.

These techniques convert all signals to the digital domain and allow parameters to be adjusted and reported over a PMBus compliant interface, including accurate measurement of input voltage, current and power. The ADP1048 is extremely versatile and easy-to-use, enabling AC/DC designers and system architects to tweak their design in real-time and optimise efficiency at system level.

The ADP1048 and ADP1047 digital PFC controllers are designed to complement the ADP1043A digital controller for isolated systems, high-speed MOSFET drivers and iCoupler® digital isolators, which also are available from Analog Devices. These devices facilitate easy implementation of intelligent power management for greater energy efficiency.