Power Supplies
Follow guidelines to develop an efficient portable power solution
This article presents a generic power supply design for an embedded system and examines the function of each module in the design. It also provides guidelines for selection of topologies and components, thermal and packaging aspects, battery management.
Buck-boost topology delivers negative output from positive input
The polarity inverting buck-boost converter is a very basic power conversion topology like the buck topology and the boost topology. Each one of these basic topologies is built with one active switch (usually a MOSFET) a passive switch (a diode) and an inductor.
Point-of-load regulation adds performance to set-top-box design
As the power requirements for advanced set-top boxes increases, so does the system architect's concern about temperature rise, time to market, efficiency, regulatory approval, cost, power sequencing and power factor correction (PFC).
See all Power Supplies »
Power Components
Build low power video SoCs with programmable multi-core video processor IP
Low power programmable multi core video processor IP, requiring lower clock frequencies and voltages, achieves efficient parallelism using specialized blocks for common video processing computations -- including H.264 encode and decode -- while maintaining flexibility for future upgrades. With power consumption comparable to ASICs, this SoC architecture scales to 1080p and beyond.
PTCs as charging resistors for fail-safe charging
Self-protecting charging resistors based on PTC ceramic are suitable for smoothing capacitors in power supplies. In the event of a short circuit, they limit the currents to safe levels.
X Marks the spot...the intersection of eco- and financially-friendly computing
This intersection of "constrained environments" where efficiency has not yet been implemented is where the next wave of FPGA-based application accelerators will come into play.
See all Power Components »
UPS
Standby and uninterruptible power supply tutorial - Part 2
There is a big difference between the performances of the standby backup supply and an on-line UPS. This two-part tutorial steps you through the differences and similarities. This is Part 2 and it describes and provides examples of power factor and why it's important to understand.
Standby and uninterruptible power supply tutorial - Part 1
There is a big difference between the performances of the standby backup supply and an on-line UPS. This two-part tutorial steps you through the differences and similarities. Part 1 describes what they are and how to select the appropriate one.
See all UPS »
Battery Management
Squeeze power efficiency out of processor-based designs -- Part two
In this two-part article, we offer tips and tricks for power optimization and power system design. Part two focuses how to minimize power consumption through efficient power supply design.
Squeeze power efficiency out of processor-based designs -- Part one
Processors play a key role in minimizing power consumption and extending battery life. Too often, designers limit their options for minimizing power consumption to little more than using low-power components. In fact, because processors can control the entire system, they in turn offer several ways to reduce and save on power consumption.
Replacing chemical battery storage with supercapacitors into your embedded design
The use of super-capacitors for energy storage has advantages, as well as disadvantages, compared to chemical, battery storage. The challenges associated with charging and retrieving energy from a super-capacitor system have to be factored into the cost/benefit analysis.
See all Battery Management »
New Power Plays
Improve mobile handset antenna performance with new tuning techniques
A new antenna tuning technology can keep space-constrained mobile handset antennas on track, and it is designed to handle very high RF signal levels while consuming low power.
Designing a power-down tester for solid-state storage products
As solid-state drives become an increasingly viable solution to mass storage, it's important to understand and test their integrity under power-down conditions and cycles.
How much transmit power do WiMAX nets need?
As designers turn their attention to mobile WiMAX devices, they quickly learn that power amplifiers present some specific design challenges.
See all New Power Plays »
See all Design Center »
|
|
|
POWER MANAGEMENT DESIGNLINE EUROPE DESIGN CENTER ARCHIVE
|
| |
About the Power Management DesignLine Europe How-To Section
Power Management DesignLine Europe's How-To Section delivers detailed engineering articles focused on the design, development and use of Portable/Battery Design, Power management ICs, Power Management Design, Power Electronics, Micro Fuel Cells, Power Supplies, Linear Power Supplies, Switch-mode Power Supplies, Power Components, Battery Management, Portable Power Management, Low-Power Design, Uninterruptible Power Supplies, LED Drivers, LCD Drivers, Power Amplifiers, Buck Converters, Boost Converters, LDO Regulators, POL Converters, Supercapacitors, Ultracapacitors, Thermal Management, DC-DC Converters, AC-DC Converters, Photovoltaics, UPS, PMIC, Solar Power, Photovoltaics. Design topics covered in this category include micro fuel cells, buck/boost DC/DC converter, thermal management, uninterruptible power supplies (UPS), supercapacitors, ultracapacitors, DC/DC converters, AC/DC converters, LDO regulators, LED drivers, LCD drivers, PWM controllers, POL converters, solar energy, Energy harvest, energy scavenge and more.
|
|
|
