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Digital PFC Controller Features Accurate Power Metering, GUI Interface

Tue, 08/30/2011 - 6:30am
PFC controller ICAnalog Devices introduced a digital PFC (power factor correction) controller with accurate AC power meter capability and inrush control functionality. This chip is desirable for AC/DC power-factor correction and precision power metering applications that require high reliability and redundant power supplies, such as communications infrastructure and motor control. The ADP1047 controller uses conventional, continuous-conduction mode PFC techniques; all signals are converted to the digital domain, allowing all parameters to be adjusted and reported over a PMBus compliant interface -- including accurate RMS measurement of input voltage, current and power. This allows designers to optimize system harmonic performance, maximize efficiency across the load range and reduce time-to-market. The ADP1047 is programmed using an intuitive GUI. The ADP1047 digital PFC controller provides typical power metering accuracy of ±3 percent at full load current with further improvements to ±1 percent with customer calibration. The new digital PFC controller also offers enhanced transient response through non-linear control algorithms, programmable inrush control to reduce start-up over-stress, real-time programming to maximize efficiency and extensive fault detection and reporting for improved reliability.

Analog Devices, Inc.
800-262-5643, www.analog.com 
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