Managing Multiple Supply Voltages
Aug 1, 2004
For most electronic systems, monitoring system voltages with a power-on reset (POR) ensures proper initialization at power up. Furthermore, detecting...
Modeling DC-DC Converter Transient Response
Aug 1, 2004
Decoupling and bulk capacitance are used to limit the voltage deviation of dc-dc converters in the face of load steps. Yet, requirements for high power...
Ramp Compensation for Current-Mode Converters
Jul 1, 2004
A peak current-mode power supply is subject to subharmonic oscillations if two conditions are met: the converter operates in the continuous conduction...
Active Clamp Transformer Reset: High or Low Side?
Jul 1, 2004
The active clamp transformer reset technique offers many well-documented advantages over traditional single-ended reset techniques, including lower voltage...
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...
Linear Post Regulators for DC-DC Converters
Jun 1, 2004
The output ripple of a standard isolated dc-dc converter is between 0.5% and 1% of its nominal output voltage. For applications requiring a lower output...
Inductor Current Rating for a Buck-Boost Converter
May 1, 2004
Buck-boost converters produce a regulated output voltage either less than or greater than the input voltage. When the input voltage is higher than the...
Sixteenth-Brick Converters Are Taking Shape
May 1, 2004
As part of the continuing effort to shrink isolated, board-mounted, dc-dc converters, several power supply manufacturers have been preparing to launch...
Design Technique Models POL Performance
Apr 1, 2004
The use of purchased dc-dc converter modules can simplify the implementation of board-level distributed power architectures (DPAs). However, when these...
Tapped-Inductor Boost Converter Yields Dime-Size Supply
Apr 1, 2004
Designs evolve because someone thinks of a better way to do something or because the first great idea (and sometimes the second and third) just didn't...
Program Streamlines Power Converter Simulation
Mar 1, 2004
To meet the need for a simple Windows-based circuit-simulation program, a new software package called Power Circuits 101 is available for modeling electrical...
Managing Currents in Dual- Synchronous Controllers
Mar 1, 2004
When a dual-synchronous controller has no load, negative inductor currents may develop. If these currents are not properly managed, they can flow backward...
