Digital Control Squeezes 40 A from Buck Converter
Aug 1, 2007
Using digital-loop control, a PWM controller minimizes
duty cycle to optimize efficiency of a single-phase
synchronous buck converter and boost current delivery....
Graphical System Design: A Bridge to Digital Power
Mar 1, 2007
Using LabVIEW software, analog designers can implement
digital power control without writing VHDL code as
illustrated with a PXI power-supply design....
Digital Control Measures In-System Response
Nov 1, 2006
Digital power solutions make it possible to measure power-stage frequency response in the application, opening the door to new capabilities such as auto-tuning, power-stage diagnosis
and on-the-fly adaptability....
Digital Power Control Enables System Identification
Nov 1, 2006
Despite obvious advantages over analog controllers, the limited power of today's digital controllers requires careful measuring techniques to accurately capture the real-time response of the control loop....
Explore the Lesser-Known Benefits of Digital Power
Nov 1, 2006
Although the use of digital control eases implementation of the basic power management
requirements, it also affords numerous secondary benefits that can make POL power designs more compact, flexible and efficient....
Digital Bus Makes Current Sharing More Robust
Nov 1, 2006
Power supplies in servers, storage and telecom systems often employ redundant topologies. This means that multiple supplies connected in parallel provide...
DSCs Ease Migration to Digital Loop Control
Nov 1, 2006
Armed with high execution rates and power peripherals, digital signal controllers provide
the functionality needed in power-supply designs but don’t require DSP programming....
Better Battery Management Through Digital Control
Jan 1, 2006
Battery management has used digital control for about as long as cost-affordable microcontrollers have been available. There are 20-year-old patents from...
Digital Feedback Controls Supply Voltage Accurately
Jan 1, 2006
The goal of this project was to design and build an efficient power supply system whose output voltage could be accurately set to a digitally selected...
Digital Control Turns On the Lights
Oct 1, 2005
The goal of power management for lighting is to ensure that electric lights are switched off or dimmed at times when they are not needed. These times are when people are not present in a particular area or when sufficient or partial natural light is available. Fluorescent light sources are used predominantly in office environments and, by means of suitable solid-state control gear, can be dimmed to any level from 100% down to less than 5% of maximum light output or can be switched off altogether....
PMBus Offers Open-Standard Digital Power Management
Sep 1, 2005
This highly flexible, power-management protocol
defines the transport and physical interface,
as well as the command language required for
communicating with power converters....
Power Management for High Performance
Jul 1, 2004
You are responsible for the card-level power design in your product. You have determined what power rails you need on each card. You have chosen the best...
POL Measurement Functions Aid Power Systems Design
Jun 1, 2004
Typically, point-of-load converters (POLs) aren't viewed as diagnostic tools. However, that may change as power supply vendors begin to incorporate new...
Evaluation System Revs Up Design for Motor Driver ICs
Jun 1, 2004
Today's smart power ICs drive a wide range of small motors such as dc, stepper and brushless dc (BLDC). These smart power ICs typically interface directly...
Microcontroller Enables Digital Control in SMPS
Feb 1, 2004
While DSPs are the primary controllers in uninterruptible power supplies (UPS) with power-factor correction (PFC), ac generation and battery management,...
IC Manages Multiple Supplies on a Single Board
Jan 1, 2004
[For a copy of this article in PDF format, which displays figures and equations, click here. Requires Adobe Acrobat Reader, free download.] Power-supply...
Control Algorithm of Modern Switching Regulators
Jan 1, 2004
In the past few years, the pitch on digital control of switching regulators has been rising steadily. In a typical analog implementation, a pulse-width-modulated...
Benefits of Digital Multiphase PWM Power Control
Oct 1, 2003
Since the early 1990s, the power requirements for VCC core voltages for leading-edge processors and ASICs have become increasingly demanding, with chip...
Integrated Platform for Motion Control Design
Aug 1, 2003
A novel system architecture, iMOTION, integrates analog, digital, and power building blocks along with control algorithms in a tightly integrated development platform for encoder-based and sensorless motor control applications....
