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Advanced digital power controller targets high efficiency, isolated power supplies

April 12, 2012 | Paul Buckley | 222904436
Analog Devices, Inc. has introduced the ADP1046 digital power controller for high efficiency AC-to-DC and isolated DC-to-DC power supply systems.
A flexible controller with seven PWM (pulse width modulation) logic outputs, the ADP1046 can be easily programmed using an easy-to-use graphic user interface (GUI) with I2C interface. The device can be used to control and drive most power supply topologies including resonant mode for high efficiency.  The ADP1046 is pin-compatible with ADI's award winning ADP1043A but offers advanced features and greater flexibility, including voltage feed-forward for fast line transient response; dedicated control loop configuration to improve loop response and reduce output noise; and adaptive dead-time control for enhanced efficiency across the entire load range. The ADP1046 is specifically designed for high efficiency AC-to-DC power supplies used in server, storage and networking applications and isolated DC-to-DC supplies including intermediate bus and radio power amplifier applications.        

The ADP1046 power controller is easily programmed using an intuitive graphical-user interface which enables customers to design and optimise robust systems without the complex code programming required by alternative DSP (digital signal processor) based devices. The I2C interface allows read-back of key parametric data and enables extensive programmability of operation and fault handling. Based on Analog Devices' precision, high speed A/D converter technology, the ADP1046 is suited to parallel and redundant power supply operation and offers analog and digital current sharing functions and control of the external OR-FET for redundant power supply applications.  

The ADP1046 digital controller is designed to complement the high-speed MOSFET drivers and ADI's i Coupler  digital isolators in isolated power systems, and the ADP1047 and ADP1048 power factor correction digital controllers in AC-to-DC systems. These devices facilitate easy implementation of intelligent power management for greater energy efficiency.      

Availability and Pricing   

The ADP1046 digital power controller packaged in a 32-lead LFCSP is available now priced at $4.50 per 1000 devices.  

More information about the ADP1046 controller at www.analog.com/ADP1046









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