Design Con 2015

Power Management

Steve Taranovich
Editor
In-depth technical information, product advancements, and industry news for engineers responsible for designing, specifying, or selecting power sources for electronics applications. Topics include power supplies, power management and regulation components, batteries, digital power, and alternative energy technology.

Don’t neglect the humble battery connector

We pay considerable attention to batteries and their technologies, but the lowly connector is just as important to a successful, reliable DC supply. Read More...

Comparing Verilog-AMS vs. SPICE view usage for robust AMS Verification of Power Management Controller and Mode Transition

The importance of a high level of power efficiency also means that several modes like Standby, Low power, Reduced Clock Mode, etc. also need to be supported. Read More...

DMM provides numerical and graphical displays

The DMM7510 from Keithley Instruments combines a 7.5-digit DMM with a digitizer and touch screen, letting you measure and view voltage and current. Read More...

GaN technology will transform the future

If we will look out 5 to 10 years we can easily see how a transformative change in semiconductor technology can transform our everyday world. Read More...

Witricity emerges with innovative wireless power at CES 2015

Witricity has gone from an MIT professor’s dream (Professor Marin Soljačić ) to the advanced development of coupled resonators in the wireless power industry. Read More...

An Integrated Approach for Optimal Placement of STATCOM Using EPSO with Fuzzy-GA for Voltage Regulation

In practical power systems, the location of Flexible AC Transmission System (FACTS) for perfect voltage regulation is an important consideration. Read More...

How to measure capacity versus bias voltage on MLCCs

High-capacity, multilayer ceramic capacitors (MLCC) have a property often not well understood by electronic designers: the capacitance of these devices varies with applied DC voltage. Read More...

Impedance measurements make a difference at DesignCon

What do clock jitter, EMI, control loop stability, SPICE modeling, rogue waves and the ripeness of fruit have in common? A tutorial and paper presentation at DesignCon may be just what you need to find out. Read More...

Conquering the 'kink' in sub-threshold power MOSFET behavior: A simple compact modeling approach

This article explains the physical reasons behind the unusual electric behavior of power MOSFETs operating in sub-threshold and weak-inversion modes and presents a simple, low-overhead subcircuit-based compact modeling approach to conquer these "kinks" in dc characteristics with standard BSIM3 compact models. Read More...

Bridging the gap between speed and power in Asynchronous SRAMs

The Asynchronous SRAM space is divided between two very distinct product families – fast and low power – each with its own set of features, applications, and price. Read More...

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Series-connected MOSFETs increase voltage & power handling

A constant-current charger for a high-energy capacitor bank uses multiple MOSFETs to increase voltage and power-handling capabilities. Read More...

Sleep easy with this desk fan speed reducer

This innovative AC motor control skips cycles. Read More...

LTC Design Note: Versatile industrial power supply takes high voltage input and yields from eight 1A to two 4A outputs

This ultra-flexible, highly-featured switching regulator IC might be perfect for your next complex and/or industrial design. Read More...

Flyback switcher works down to 1.1V, flashes HBLEDs

Check out this DI if you need voltage step-up from a single cell. Read More...

Load switch with self-resetting circuit breaker

Protect both load and driver with this elegant little Design Idea. Read More...

LTC Design Note: High performance single phase DC/DC controller with power system management

This DC-DC controller incorporates power system management and high-precision data converters. Read More...

Improve efficiency of low-cost switcher

Reduce losses by over 30%, and improve Vin(min) too, on a 34063-based or similar switcher. Read More...

Variable HV power supply employs photovoltaic optocoupler

This unusual topology saved the day when a higher-voltage variable supply was needed. Read More...

Low-side switch with fast turn-off for inductive loads

Ditch the freewheeling diode if you want fast turn off. Read More...

Avago Tech Note: Driving & protecting inverter IGBTs

A special purpose optocoupler can solve your IGBT gate-drive and fault-feedback needs. Read More...

Avago Tech Note: Reduce IGBT drive cost and space

Use an application-specific optocoupler for an elegant solution to IGBT drive and monitoring. Read More...

LTC Design Note: 65V 500mA step-down converter fits automotive and industrial applications

This switcher is happy to drop a 60V input all the way down to 0.8V. Read More...

Avoid problems with multiple DC-DC converters

Improve DC-DC converter design and application, and avoid potential problems with this synchronization circuit. Read More...

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ICs enable digital control of POL converters

ZSPM15XX single-phase digital power controllers from ZMDI are designed for high-current, nonisolated DC/DC step-down point-of-load (POL) converters in enterprise networking and storage applications, including routers, gateways, and cloud storage. Read More...

DMM provides numerical and graphical displays

The DMM7510 from Keithley Instruments combines a 7.5-digit DMM with a digitizer and touch screen, letting you measure and view voltage and current. Read More...

Intersil shrinks step-down DC/DC power module

Encapsulated in a tiny 9.0x6.5x1.83-mm QFN package, the ISL8203M step-down DC/DC power module from Intersil furnishes an adjustable output voltage between 0.8 V to 5 V to allow designers to use one device to build a single 6-A or dual 3-A output power supply. Read More...

HDMI protection devices improve Ultra-HD viewing

Single-chip HDMI signal-conditioning and ESD protection ICs from STMicroelectronics, the HDMI2C1 series employs active pull-ups on all DDC (Display Data Channel) lines to maintain 4K Ultra-HD signal integrity and minimize dependence on HDMI cable quality. Read More...

Power-entry module affords Class II protection

A compact power-entry module with a built-in line filter, the DC12 from Schurter, meets the IEC 60601-1-11 safety standard for home healthcare equipment to minimize the risks for at-home users. Read More...

Chipset measures 3-phase AC power

Analog Devices chipset measure 3-phase electrical energy using shunts as current sensors. The chipset comprises the ADE7978, the ADE7933/ADE7932, and ADE7923. Read More...

Chip-scale bi-directional MOSFET for lithium battery protection

The DMN2023UCB4 bi-directional MOSFET provides enhanced protection for charging 1- and 2-cell lithium batteries. Read More...

Programmable quad-output PMIC powers any FPGA, SoC or DSP

Exar Corporation has introduced, a quad output programmable Universal PMIC with an input operating voltage range of 6 V to 40 V. Read More...

Supplies deliver up to 480 W on DIN rails

To meet the need for DIN rail-mount power sources in industrial, building automation, and process-control applications, TDK-Lambda offers the DRF120-480 series of compact power supplies, which operate with an efficiency of up to 94%, while providing 120 W to 480 W of output power. Read More...

Eighth-brick converters accept up to 75-V input

Joining the recently announced PKU5510E, PKE5000, and PKE3000 series, the PKB5000W series of open-frame, isolated eighth-brick DC/DC power modules from Ericsson delivers up to 120 W of output power within a wide input-voltage range of 18 VDC to 75 VDC. Read More...

80-V LDO regulator withstands military temperatures

Linear Technology has released a military-grade version of its LT3014B, a high-voltage, micropower LDO regulator that has an adjustable input voltage range of 3 V to 80 V and is capable of delivering 20 mA of output current. Read More...

See the details with an HD thermal imager

Fluke's TiX1000 series of high-definition thermal imaging cameras let you see temperature on circuit components, wires, even whole cities. Read More...

Intelligent four-channel LED driver offers design flexibility

Code Mercenaries has introduced a 4-channel, intelligent, programmable LED driver which has I2C, DMX512, and DALI interfaces. Read More...

Two-string HB automotive LED driver provides 10000:1 dimming ratio

For use in automotive display backlights, automotive lighting applications and LCD backlights, Maxim has posted detail of the MAX16838B which it says is the only-available 2-String HB LED driver providing 10000:1 dimming ratio. Read More...

Triple LED controllers for rear lights

The IC family E522.80/81/82/83 from Elmos AG is an LED controller device, designed for applications like automotive rear lights. The devices offer three channels each, with a maximum current of 140 mA. Read More...

12-V motor driver family simplifies tuning

Adaptive current regulation and enhanced fault protection help systems spin stepper motors smoothly and reliably; TI has added a 12-V motor driver family that claims to reduces spin-up time to seconds and simplifies tuning stepper and brushed DC motors. Read More...

>> SEE ALL

Teardown: Cell-phone charger: nice idea done right

The Mophie juice pack powerstation mini smartphone and USB-device battery charger demonstrates the ability to provide more than twice the battery life to your smartphone while still keeping a low-profile shape that slips right into your pocket. Read More...

Teardown: Gigabit Ethernet switch shut down by lightning strike

A lightning bolt-generated EMP may have entered through the switch's port(s) and KO'd the controller inside. What are your theories? Read More...

Teardown: Samsung Galaxy S4

TechInsights examines the innards of Samsung's latest and greatest smartphone. Read More...

Cell-phone charger: nice idea, bad implementation

Now and again you come across a device that’s so simple, useful, and functional that you’re glad to add it to your already-overladen workbag; that is, until it breaks, for the dumbest of design reasons. Read More...

Evaluate your application's energy-harvesting vibrational profile with a Slam Stick

To know whether your application is suitable for vibrational energy harvesting, you must determine its vibrational profile. Mide Technology's Slam Stick data logger and open-source software can ease your profiling task. Read More...

What's inside a smart meter? iFixit tears it down

When iFixit's Kyle Wiens had the opportunity to tear down an Elster smart meter, he jumped at it—not to come up with a repair manual but to evaluate the health and safety issues that seem to surround the utilities’ installation of smart meters. Read More...

Simple battery technology packs in more features with complex chemistries

The basic components are the same across all rechargeable lithium-ion cells, the workhorses of portable energy storage. Read More...

Way, way off the grid: Powering the Phoenix Mars lander

Prying Eyes: An inside look at the power-generation, -regulation, and -delivery system for the Phoenix Mars lander. Read More...

Microfuel cell enables ubiquitous computing

Prying Eyes examines a fuel-cell-based power pack for handheld devices, such as cell phones and MP3 players. Read More...

Hybrids mark the end of the stinky city bus

Prying Eyes looks inside a hybrid gas-electric bus powered by 288 ultracapacitors. Read More...

>> SEE ALL

Comparing Verilog-AMS vs. SPICE view usage for robust AMS Verification of Power Management Controller and Mode Transition

The importance of a high level of power efficiency also means that several modes like Standby, Low power, Reduced Clock Mode, etc. also need to be supported. Read More...

Witricity emerges with innovative wireless power at CES 2015

Witricity has gone from an MIT professor’s dream (Professor Marin Soljačić ) to the advanced development of coupled resonators in the wireless power industry. Read More...

An Integrated Approach for Optimal Placement of STATCOM Using EPSO with Fuzzy-GA for Voltage Regulation

In practical power systems, the location of Flexible AC Transmission System (FACTS) for perfect voltage regulation is an important consideration. Read More...

How to measure capacity versus bias voltage on MLCCs

High-capacity, multilayer ceramic capacitors (MLCC) have a property often not well understood by electronic designers: the capacitance of these devices varies with applied DC voltage. Read More...

Bridging the gap between speed and power in Asynchronous SRAMs

The Asynchronous SRAM space is divided between two very distinct product families – fast and low power – each with its own set of features, applications, and price. Read More...

EDN -- 03.03.94 Step-by-step procedures help you solve Spice convergence problem

EDN -- 03.03.94 Step-by-step procedures help you solve Spice convergence problem Read More...

Product How-to: Ultra-low noise linear regulators for powering PLL/VCO and clocking ICs

Wideband communication systems usually require an ultra-low noise regulator to power the VCOs and PLLs. Read More...

LED Street Lighting helps limit Greenhouse Gas Emissions

Studies1 show that moving street lighting to LED lead to a 64% energy savings but moreover, the environmental impact on GHG emissions from Power planets would be 33,192 fewer tons of equivalent carbon dioxide (tCO2e) into our atmosphere each year. Read More...

An Interview with Robert Kollman, TI (retired)

I worked with Robert Kollman and the Power Supply Design Team he created at Texas Instruments for about 11 years when I was at TI. This is the reason I know, first hand, about Robert’s capabilities and expertise. Read More...

Sub-Threshold Design - A Revolutionary Approach to Eliminating Power

While reducing energy consumption is critically important throughout the electronics industry, the question is: how should that goal be achieved? Ambiq Micro’s approach moves beyond the incremental improvements that other semiconductor companies have taken and makes revolutionary advances through a unique approach to the problem: sub-threshold circuit design. Read More...

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Don’t neglect the humble battery connector

We pay considerable attention to batteries and their technologies, but the lowly connector is just as important to a successful, reliable DC supply. Read More...

Tips to optimize high-speed serial design

Papers and presentations at DesignCon 2015 address critical areas of high-speed design. Here’s a preview of some of them. Read More...

High tech EV shows the future of electronics in automobiles

Renovo has a very high tech EV that will make a significant contribution to electronics in automobiles going forward. Read More...

Impedance measurements make a difference at DesignCon

What do clock jitter, EMI, control loop stability, SPICE modeling, rogue waves and the ripeness of fruit have in common? A tutorial and paper presentation at DesignCon may be just what you need to find out. Read More...

Indiegogo at CES 2015 with electronics power inventions

Indiegogo, the world’s first and largest online funding platform, is at Eureka Park in Las Vegas. The Indiegogo Zone is home to some of the hottest new tech and hardware startups that have all been funded on Indiegogo Read More...

Delta Group shows CES 2015 engineers Smart EV chargers, efficient fans and Pocket Cell Pro charger solutions

Delta Group, is based in Taiwan and develops switching power supplies and thermal management designs. At CES they are unveiling their “Delta Smart Green House” Read More...

Vote for the Engineer of the Year

DesignCon2015 has announced the finalists for the Engineer of the Year Award (sponsored by National Instruments). The award includes a $10,000 grant that will be given out at DesignCon. Read More...

Obscure AC line connectors challenge designers, consumers

Basic plugs and connectors are standardized, but there are many specialized ones you'll run into that are a problem when they need to be replaced. Read More...

My long-running affection for heat sinks

As a bulk-metal component, the heat sink is the opposite of the million-gate, submicron-process IC or a power-handling discrete device; despite this obvious difference, it is often critical to the viability and long life of those more glamorous active components. Read More...

Digital Power chat session on Planet Analog November 19, 2014

Power management is a vital part to every design. Having the best power supply for your system ensures a robust design as well as a design that will perform at its highest levels. Read More...

California shines a light on LED lamp efficiency opportunities

Efficiency opportunities and proposing regulations for small diameter directional lamps and general service LED lamps. Read More...

Architects of Modern Power (AMP) consortium issues first standards

I introduced the AMP consortium in my previous blog and right on the heels of that news comes their first standards for digital point-of-load (POL) and advanced bus dc-dc converters with the goal of common mechanical and electrical specifications for the development of advanced power conversion technology for distributed power systems. Read More...

Testing times for design engineers

Characterising subsystems containing high-power devices switching at megahertz/gigahertz frequencies with very fast edges is stretching the capabilities of measurement equipment, and we all have to become test engineers to understand what's inside the box, the sources of errors, and how to use DSOs, VNAs, TDRs and spectrum analysers properly. Read More...

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