Power Supplies
How to boost DC/DC converter efficiency at higher frequencies
A MOSFET-with-integrated-Schottky-diode as the low-side switching element is superior to high-side approaches or using co-packaged devices.
H-Bridges provide 'smart power' for automotive SoC applications: Part 2 - Architectures and circuit protection
From electric motor controllers to Class D amplifiers, efficient mixed-signal integration is vital in design, and saving energy and cost.
Emulated ripple technique advances hysteretic switchmode supplies
When combined with constant on-time circuitry, ERM operation, which cuts output ripple, eliminates the greatest inherent drawbacks of hysteretic-mode control
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Power Components
Tip of the Week: Single-stage synchronous buck converter with high efficiency
This IC-based design boosts overall efficiency by 5 to 10 percent over traditional dual-stage topologies widely accepted as superior for 12- and 24-to-1 volt applications
Tip of the Week: How to best implement a synchronous buck converter
IC solutions are superior to discrete designs particularly for securing high efficiency at light load
Designing a stable DC/DC control loop
Designing the compensation network in a DC/DC converter can be a mystery if one does not know where to place the poles and zeros of the error amplifier and how much gain the error amp needs. Here's a systematic approach to getting the job done.
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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.
Get a grip on your data center power efficiency
Because datacenter power and cooling are two of the biggest issues facing IT organizations we need a way to control these costs while enabling future expansion. Learn more about the metrics that can help you better understand and improve the energy efficiency of your existing datacenters.
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Battery Management
Managing device Li-ion battery power with MCU-controlled pulse width modulation
An MCU plus PWM controller-based system is ideal for high-end battery charge management systems and designs where the battery chemistry may change with future revisions of the product.
Circuit properly charges the new lithium batteries
The charging parameters for the new generation of lithium cells differ from the previous ones; this circuit lets you charge them properly.
Voltage protect portable devices
Here's how to design voltage protection to avoid the over voltage that is causing rising temperatures, thermal runaway and burst.
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New Power Plays
Calculating power consumption in high-speed systems
Power budget considerations differ for single-ended, versus differential-mode parts. Here's what you need to know.
Power management in mobile devices--A view of energy conservation--Part IV
The gaps grow larger between what mobile devices can do and the amount of energy engineers can deliver. Chapter 2 from Power Management in Mobile Devices: Hierarchical View of Energy Conservation is an in-depth look at the power consumption, energy types, process and transistor technology, and packaging issues inherent in mobile device design. Part IV discusses low power process and transistor technology.
Ensuring low power in wireless mesh sensor networks
Wireless sensor communications and low power go hand in hand. Indeed, power management is just as important as the reliability of the communications itself.
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About the Power Management DesignLine How-To Section
Power Management DesignLine's How-To Section delivers detailed engineering articles focused on the design and development of power components, power sources, battery management devices/systems, and portable/mobile systems. 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, and more.
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