Adding Voltage Tracking to a DC-DC Converter Module
Feb 1, 2004
In many systems today, dc-dc converter modules offer anywhere from two to four outputs with a voltage input that varies from -48 V to 12 V. In addition,...
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...
Using a Current Mode PWM Controller in Voltage Mode
Jan 1, 2004
Over the years, power supply designers have been persuaded that current mode is superior to its voltage-mode counterpart. As a result, the major PWM controller...
Charge Your Battery Faster By Using a USB Port
Jan 1, 2004
Design considerations for battery charging from
USB include how fast a device with a discharged
battery must operate with full functionality when
plugged into a USB port; time allowed for battery
charging; power budgeting within USB limits; and
the need for ac adapter charging....
Mixed-Signal Chipsets Ease Motion Control Design
Nov 1, 2003
The system architecture and the digital control technology of the iMOTION platform were introduced in Part I. In Part II, the mixed signal chipsets that are designed to support the two iMOTION platforms will be introduced....
Integration Saves Time and Board Space
Oct 1, 2003
[For a copy of this article in PDF format, which displays figures and equations, click here. Requires Adobe Acrobat Reader, free download.] The first...
Lighting Management for Multimedia Displays
Oct 1, 2003
With built-in LED drivers, integrated lighting management units efficiently drive white and RGB LEDs in color displays of modern cell phones to conserve power and enhance battery life....
Alleviating Noise Concerns in Handheld Wireless Products
Oct 1, 2003
Power supply ICs with built-in spread-spectrum switching alleviate harmonic interference with sensitive RF circuitry in battery-powered wireless products....
Hot-Swap Power Controllers Continue To Make Progress
Sep 1, 2003
Hot-swap power controllers have usually protected circuit boards and telecom/networking systems from damage when cards or boards are either removed or installed under live condition. ...
Power Converter Makers Take Silicon Route
Jun 1, 2003
Two products out of power supply makers Power-One and Vicor have seemingly affirmed the long-standing thesis that the functionality of the dc-dc converter will eventually be fully integrated on a single piece of silicon....
The Evolution of Smart Power Relays
Jun 1, 2003
Let's compare smart power relays with their traditional electromechanical counterparts to see which one outperforms the other....
