IQ-Analog - EEWeb
IQ-Analog - EEWeb
IQ-Analog - EEWeb
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>EEWeb</strong><br />
PULSE<br />
Mike Kappes<br />
President and CEO<br />
<strong>IQ</strong>-<strong>Analog</strong><br />
INTERVIEW<br />
<strong>EEWeb</strong>.com<br />
<strong>EEWeb</strong>.com<br />
Issue 64<br />
September September 18, 2012<br />
Electrical Engineering Community<br />
Visit www.eeweb.com 1
Experts<br />
Exchanging<br />
Ideas<br />
Every Day.<br />
VISIT DIGIKEY.COM/TECHXCHANGE TODAY!<br />
Digi-Key is an authorized distributor for all supplier partners. New products added daily. © 2012 Digi-Key Corporation, 701 Brooks Ave. South, Thief River Falls, MN 56701, USA
<strong>EEWeb</strong> PULSE TABLE OF CONTENTS<br />
Mike Kappes<br />
<strong>IQ</strong>-ANALOG<br />
Interview with Mike Kappes - Founder, President and CEO of <strong>IQ</strong>-<strong>Analog</strong><br />
Featured Products<br />
Preparing Our Next Generation of Young<br />
Engineers for Success<br />
BY STEVE DARROUGH WITH ZILOG<br />
The importance of teaching students the relationship between specialized micro-elements and<br />
the total process of product design.<br />
Homemade Tools - Part 1<br />
BY PAUL CLARKE WITH EBM-PAPST<br />
An outline of how to design your own tools that will help you pursue your own unique task.<br />
RTZ - Return to Zero Comic<br />
Visit www.eeweb.com<br />
4<br />
9<br />
12<br />
18<br />
22<br />
3
<strong>EEWeb</strong> PULSE<br />
49<br />
<strong>EEWeb</strong> | | Electrical Engineering Community<br />
Mike<br />
Kappes<br />
<strong>IQ</strong><strong>Analog</strong> <strong>IQ</strong>-<strong>Analog</strong>
How did you get into electrical<br />
engineering and when did you<br />
start?<br />
My uncle is an MIT graduate in<br />
Mechanical Engineering and he<br />
sparked an interest in gadgetry at an<br />
early age. My wish list for birthdays<br />
was always loaded with items from<br />
Edmund Scientific. I had a natural<br />
curiosity about how things worked<br />
and the fact that my parents could<br />
provide no clear answers made<br />
electronics all the more interesting.<br />
I had several science projects in my<br />
youth culminating in the permanent<br />
dismantling of a personal computer.<br />
What have been some of your<br />
influences that have helped<br />
you get to where you are<br />
today?<br />
My mom was a former biochemist<br />
from NASA who would take me on<br />
field trips to science labs at local<br />
universities. I realized there was<br />
still a lot of mystery as to how things<br />
worked and that electronics in<br />
particular was an exciting field with<br />
a lot of mystery. While other kids<br />
may have liked Captain Kirk, I was<br />
a fan of Spock. He knew everything<br />
about everything. Kirk was just<br />
bumbling around in the darkness.<br />
How did you decide to start<br />
your own company?<br />
I have worked in multiple chip<br />
companies— several of them<br />
start-ups—and I developed a lot<br />
experience in analog circuit design<br />
for communications. Along the<br />
way, I developed an emphasis on<br />
data-converter technology, which<br />
was becoming more and more<br />
important in these systems. As an<br />
engineer, I’ve always aspired to<br />
change the world in some small<br />
way. I decided I wanted to start a<br />
group that developed a new class<br />
of data converters that leveraged<br />
digital signal processing to enhance<br />
performance with greater efficiency.<br />
When I first started out, it was a little<br />
bit of a shock because I went from<br />
having a stable salary to no income<br />
with only a few months of cushion.<br />
I was lucky to find a short-term<br />
project with a local company as a<br />
design engineer working on-site for<br />
them. After that project was done, I<br />
had a technology component that I<br />
owned which I could leverage for<br />
the next project. From there, it was<br />
one project after the other until I<br />
had licensed enough intellectual<br />
property to other companies to afford<br />
to build our team. It has steamrolled<br />
in the last 3-4 years to where we have<br />
the critical mass to balance our IP<br />
licensing business with advanced<br />
research and development of the<br />
technology need to roll out our own<br />
integrated circuit product line.<br />
How many employees do<br />
you have at <strong>IQ</strong>-<strong>Analog</strong> and<br />
how you would describe the<br />
culture?<br />
We currently have seven employees.<br />
It’s a fun place to work. We are<br />
addressing client problems that<br />
are difficult to solve. We are very<br />
service-oriented and we all interact<br />
with our customers. As a result of the<br />
personal relationships we develop,<br />
we have heightened responsibility<br />
and ownership of our engineering<br />
activities. If the customer’s<br />
expectations are not fully met, then<br />
there is a personal consequence to<br />
that. The oppposite is also true that<br />
their is a great sense of satisfaction<br />
in solving complex problems for our<br />
clients.<br />
What particular technologies<br />
are you licensing to other<br />
companies?<br />
We develop intellectual property (IP)<br />
that is used to perform some form of<br />
Visit www.eeweb.com<br />
INTERVIEW<br />
analog interface or data converter<br />
function on a client’s integrated<br />
circuit product. It is all analog hard<br />
macro circuit design. We develop<br />
the circuit architectures, perform<br />
the circuit design and layout and<br />
package the IP as a software bundle<br />
ready for integration. We are a very<br />
hardware-focused company and we<br />
like to take our own test-chips into<br />
the lab and do testing to validate our<br />
performance expectations.<br />
Engineering prowess<br />
has created the<br />
largest corporation<br />
in the world out of<br />
humble beginnings<br />
in a garage. I<br />
don’t think we<br />
give [America]<br />
enough credit for<br />
our contributions<br />
to society.<br />
Our company is currently working<br />
on the advancement of analog<br />
interface technologies, in particular<br />
data converters, for 4G base station<br />
equipment. Data converters are<br />
marching up the signal chain<br />
replacing RF components while<br />
enhancing data rates and system<br />
performance. We are working<br />
to provide more advanced data<br />
converters to enable higher<br />
performance and lower cost cellular<br />
networks.<br />
5
<strong>EEWeb</strong> PULSE<br />
What kinds of companies are<br />
buying your IP?<br />
We have licensed our IP around<br />
the globe for a myriad of<br />
applications. The trend lately has<br />
been toward servicing femtocell<br />
and picocell products which are<br />
essentially consumer-grade cellular<br />
basestations. We have also seen<br />
a lot of attention from companies<br />
developing semiconductors for<br />
wireless transceivers that provide<br />
data back-haul from base-station<br />
to base-station. Integration has<br />
historically been the pathway<br />
to enable lower cost wireline<br />
communications systems (ethernet,<br />
DSL, etc) and the same is holding<br />
true for wireless communications. It<br />
is a natural evolution enabled both<br />
by advances in process technology<br />
and the the ingenuity of creative<br />
engineers doing more with the<br />
transistors made available to them.<br />
Do you have any note-worthy<br />
engineering experiences?<br />
I have over 20 patents in analog<br />
circuit designs. My greatest<br />
accomplishment to date has been<br />
building <strong>IQ</strong>-<strong>Analog</strong> into a company<br />
that enabled me to attract worldclass<br />
engineering talent. Our<br />
greatest accomplishment together<br />
is yet to come.<br />
What challenges do you<br />
foresee in our industry?<br />
The biggest issue I see as an<br />
entrepreneur is the scarcity of other<br />
emerging start-up semiconductor<br />
businesses. This is not a good sign<br />
but is indicative of the vacuum left<br />
behind when venture capitalists<br />
vacated semiconductors about 5<br />
years ago. There has been no source<br />
of capital to fill this void. I would like<br />
to see a federal government initiative<br />
to keep our edge in semiconductors<br />
over emerging countries who are<br />
6<br />
<strong>EEWeb</strong> | Electrical Engineering Community<br />
My greatest accomplishment to date<br />
has been building <strong>IQ</strong>-<strong>Analog</strong> into a<br />
company that enabled me to attract<br />
world-class engineering talent.<br />
Our greatest accomplishment<br />
together is yet to come.
investing state dollars and creating<br />
an uneven global playing field.<br />
Is there anything that you<br />
have not accomplished yet,<br />
that you have your sights on<br />
accomplishing in the near<br />
future?<br />
That’s a big question. Obviously,<br />
I want to take my company to new<br />
heights and reward our employees<br />
for all of the hard work we have<br />
invested over the last 7 years. After<br />
that I’d like to contribute to our local<br />
community. Qualcomm has been<br />
a fantastic corporate role model in<br />
the San Diego community. I’d like to<br />
follow their lead in an appropriately<br />
smaller way.<br />
Do you have any advice for<br />
the electrical engineering<br />
community?<br />
I believe that America is still the<br />
leader in creative and independent<br />
thinkers. Engineering prowess has<br />
created the largest corporation in<br />
the world out of humble beginnings<br />
Visit www.eeweb.com<br />
INTERVIEW<br />
in a garage. I don’t think we give<br />
ourselves enough credit for our<br />
contributions to society. It is an<br />
honorable profession and I think we<br />
need to be sure this message gets<br />
across to the next generation. ■<br />
Visti <strong>IQ</strong>-<strong>Analog</strong>’s website:<br />
7
Technology You Can Trust<br />
Avago Technologies Optocouplers<br />
A Superior Technology<br />
for High Voltage Protection!<br />
IEC 60747-5-5 Certifi ed<br />
Optocouplers are the only isolation devices that meet or exceed the IEC 60747-5-5<br />
International Safety Standard for insulation and isolation. Stringent evaluation tests show Avago’s<br />
optocouplers deliver outstanding performance on essential safety and deliver exceptional High Voltage protection<br />
for your equipment. Alternative isolation technologies such as ADI’s magnetic or TI’s capacitive isolators do not deliver<br />
anywhere near the high voltage insulation protection or noise isolation capabilities that optocouplers deliver.<br />
For more details on this subject, read our white paper at: www.avagoresponsecenter.com/672
FEATURED PRODUCTS<br />
-36V, -200mA, Low-Dropout Linear Regulator<br />
The TPS7A30xx series of devices are negative, high-voltage (–36V),<br />
ultralow-noise (15.1µVRMS, 72dB PSRR) linear regulators capable of<br />
sourcing a maximum load of 200mA. These linear regulators include a<br />
CMOS logic-level-compatible enable pin and capacitor-programmable<br />
soft-start function that allows for customized power-management<br />
schemes. Other features available include built-in current limit and<br />
thermal shutdown protection to safeguard the device and system during<br />
fault conditions. For more information, please click here.<br />
First NFC Wireless Charging Solution<br />
Renesas Electronics Corporation, a supplier of semiconductor solutions,<br />
has developed the near field communication (NFC) wireless charging<br />
system to eliminate the power cable for charging and increase efficiency<br />
of those systems. Renesas supplies the essential components needed<br />
to build a system: the NFC microcontroller (MCU) RF20, the power<br />
transmitter IC R2A45801, and the power receiver IC R2A45701. Renesas<br />
also provides the total kit including peripheral general-purpose devices<br />
(e.g. power semiconductor devices) as a system solution. For more<br />
information, please click here.<br />
Isolated 1W DC-DC Converter<br />
Murata Power Solutions announced the MEE1 series, a 1 Watt single<br />
output PCB mounted DC-DC converter designed for a broad range of<br />
industrial, automation and instrumentation applications that require an<br />
isolated low-power distributed supply. These highly efficient converters<br />
are available in a variety of models accommodating the popular nominal<br />
input voltages of 3.3, 5, 12, 15, or 24 VDC and with output voltages of<br />
3.3, 5, 9, 12 or 15 VDC. The MEE1’s isolation allows the converter to be<br />
configured to provide an isolated negative rail in systems where only a<br />
positive rail exists. For more information, please click here.<br />
DRAM Reduces Power Use<br />
SK Hynix announced that it has introduced DDR3L-RS(Reduced Standby)<br />
DRAM for mobile solutions using its 20nm class technology. This product<br />
significantly reduces the standby power consumption. By using cuttingedge<br />
20nm class technology and efficiently managing standby current,<br />
this DDR3L-RS product reduces 70% of standby power compared to<br />
existing DDR3L DRAM while it maintains DDR3L performance. DDR3L<br />
DRAM which has recently gone mainstream works at 1.35V, while DDR3<br />
DRAM does at 1.5V. For more information, please click here.<br />
Visit www.eeweb.com<br />
9
O C T O B E R 2 2 - 2 5 , 2 0 1 2<br />
Join us this Fall! Hands-on Labs, Seminars, Meet the<br />
Experts, Demos, Partner Solutions and much more!<br />
For all things DevCon – including up-to-date course<br />
information, lodging and registration details – go to:<br />
Guest Speaker<br />
Dean Kamen<br />
Dean Kamen landed<br />
in the limelight with<br />
the Segway, but he<br />
has been innovating<br />
since high school,<br />
with more than 150<br />
patents under his belt. Recent projects<br />
include portable energy and<br />
water purification for the<br />
developing world.<br />
SESSION TRACKS<br />
Human Machine Interface<br />
Display Technologies<br />
System Design<br />
Motor Control<br />
Automotive<br />
Security<br />
Machine to Machine<br />
Computing Architectures<br />
Cloud Computing<br />
<strong>Analog</strong> & Power<br />
Development Tools<br />
Connectivity<br />
Operating Systems<br />
E n a b l i n g t h e S m a r t So c iety<br />
Hyatt yatt yatt Regency<br />
Regency<br />
Regency<br />
Orange County, CA<br />
REGISTER NOW!<br />
RenesasDevCon.com<br />
© 2012 Renesas Electronics America Inc. *Source: Gartner 2011 Worldwide Semiconductor Market Share Database, March 2012 results<br />
Key Sponsors<br />
Hosted by the<br />
Number One<br />
MCU Supplier<br />
Worldwide *
For course descriptions,<br />
visit RenesasDevCon.com<br />
Meet the Experts<br />
Design Issues for Systems That Use<br />
LCD Panels<br />
M2M Development<br />
Development Ecosystem and<br />
Services<br />
Customer Feedback<br />
Expert Panel: The Auto Industry<br />
Speaks<br />
Expert Panel: The Future of Auto<br />
Software/System Development<br />
Model-based Development<br />
Simulation: Expert Insights into<br />
Modelling Microcontrollers<br />
Automotive<br />
Cost Effective HIL for Rapid Prototyping<br />
Virtual HIL test/ISO 2626 using<br />
Processor Models<br />
Introduction to Velocity Lab<br />
Infotainment & Instrumentation<br />
Solutions<br />
QuantiPhi for RL78: The Fastest<br />
Path from Idea to Implementation<br />
Simulation: Moving Development<br />
into the Virtual World<br />
Active Safety Solutions<br />
Graphic System Design Considerations<br />
Insights into MCU & Mixed Signal<br />
Design<br />
Automotive Quality/Failure Analysis<br />
Working with AUTOSAR<br />
Trends in Automotive Communication<br />
Improve a Product’s User Experience<br />
with Model-based UI Design<br />
Intelligent Power Devices<br />
Mastering Functional Safety and<br />
ISO 26262<br />
Advanced SOC for Telematics and<br />
Infotainment<br />
MICON Racing – Qualify using<br />
QuantiPhi for RL78<br />
Using Processor Models for Software<br />
Development and Validation<br />
HEV/EV Traction Motor Control Lab<br />
Computing Architecture<br />
Renesas Next-generation<br />
Microcontroller and Microprocessor<br />
Technology Roadmap<br />
Microcontroller Solutions Enabling<br />
a Greener Society<br />
The Core Difference: When the<br />
Core Matters<br />
RH850 & RL78: Introducing the Next<br />
Generation of Microcontollers for<br />
Automotive Applications<br />
Benchmarking using EEMBC<br />
Optimizing Performance of<br />
RX-based Applications<br />
Connectivity<br />
Industrial Ethernet<br />
Instant Connectivity for the<br />
“Internet of Things”<br />
PLM-1 Modem<br />
Renesas Connecting through<br />
802.15.4 Radio<br />
CMX TCP-IP<br />
LibUSB: Create a Solution Without<br />
the Class Struggle<br />
CAN In a Day:<br />
Using the RX CAN API<br />
IR and Bluetooth Connectivity<br />
Using the RL78<br />
Development Tools<br />
Getting Started with Renesas<br />
Development Tools<br />
Introduction to e2studio, The New<br />
Eclipse-based IDE from Renesas<br />
Getting the most out of the Renesas<br />
Demonstration Kits (RDKs)<br />
Trends in Embedded Software<br />
Development<br />
High-performance Compiler<br />
Solutions for Renesas MCUs<br />
Getting the Most Out of the GNU<br />
Toolchain<br />
Getting Started with e2studio, The New Eclipse-based IDE<br />
from Renesas<br />
Introduction to the RX Arduino<br />
Using Embedded Tools for I2C, SPI,<br />
and USB Debugging and Development<br />
on the Renesas RX63N RDK<br />
Seeing Inside your Target at<br />
Run-time with µC/Probe<br />
Advanced Debugging with<br />
the RX600<br />
Migration from HEW to Eclipse<br />
Migration from Cube Suite to Eclipse<br />
Using Software Building Blocks for<br />
Faster Time-to-market<br />
VectorCAST Tools:<br />
A Complete Test Environment for<br />
Safety-critical Applications<br />
Using a Renesas Code-generation<br />
Tool for RL78 Devices<br />
e2studio Advanced Topics<br />
Advanced Debugging on RX with<br />
IAR Embedded Workbench<br />
Security<br />
NFC Ecosystem and Solutions<br />
Hardware Roots of Trust –<br />
A Foundation for Security<br />
Security Solutions for the<br />
Automotive Industry<br />
Security Solutions Part 1: Javacard<br />
Applet Development Training<br />
Security Solutions Lab 2: Secure<br />
Host Firmware Upgrade using<br />
BoardID Secure Solution<br />
Human Machine<br />
Interface<br />
Audio Solutions on the RX MCU<br />
Family<br />
Capacitive Touch Based User<br />
Interfaces and Hardware-based<br />
Solutions<br />
Enhance Embedded Designs with<br />
Low-cost TFT LCD Solutions<br />
Embedded Vision:<br />
Creating “Machines that See”<br />
Driving E Ink Displays<br />
Direct-drive LCD<br />
Using Altia to Design a GUI and<br />
Deploy it on Renesas SH7269<br />
Extreme Makeover with the RX600:<br />
Adding Touch/Graphics to Your<br />
Product<br />
Direct-drive LCD Software<br />
Integration for the RX62N/RX63N<br />
Incorporating a Capacitive Touch<br />
Interface into Your Design<br />
Industrial Controls GUI Application<br />
Using emWin<br />
Display<br />
Flat Panel Displays:<br />
LCD Technologies and Trends<br />
Flat Panel Displays: Touch Panel<br />
Technologies and Integration<br />
Flat Panel Displays: Beyond the Basics<br />
Flat Panel Displays: How to Overcome<br />
High Ambient Light Conditions<br />
Flat Panel Displays:<br />
Exploring a 2D/3D Solution<br />
Flat Panel Displays:<br />
Advanced Technology Trends<br />
M2M and Cloud Solutions<br />
Energy-efficient Communications<br />
with Wi-Fi<br />
Adding Wi-Fi to Embedded<br />
Applications<br />
Wireless Connectivity for<br />
Embedded Systems<br />
M2M: How to Create Revenuegenerating<br />
Services and Applications<br />
Wireless Sensors<br />
Wireless Transceivers<br />
M2M: Cloud Connectivity with RX<br />
and Exosite<br />
Power<br />
IGBT vs. Mosfet:<br />
Which Device to Select?<br />
How to Make Your House Smarter<br />
Digital Power: Design and<br />
Architectural Trade-offs<br />
Increasing the Performance of PFC<br />
and LED Driver IC Applications<br />
Optical Isolation, SSR Switching,<br />
and Ambient Light Sensing<br />
in MCU-based Applications<br />
IGBTs for HEV/EV<br />
Register Today! Limited Space Available.<br />
RenesasDevCon.com<br />
Motor Control<br />
Power Factor Correction:<br />
Why and How?<br />
Sensorless Vector Control and<br />
Implementation: Why and How<br />
Know your Precise Position with<br />
RX600 MCUs<br />
Field-oriented Control Using a 16-bit<br />
Low-power MCU<br />
Operating Systems<br />
Using ThreadX and IAR Embedded<br />
Workbench on the RX Processor<br />
Introduction to RoweBots’<br />
Ultra Tiny Linux RTOS<br />
Embedding USB: Implementation<br />
Challenges and Limitations<br />
FreeRTOS Lecture<br />
Rapid Development on the Renesas<br />
RX63N RDK using µEZ ® and FreeRTOS<br />
Introduction to Python<br />
Software Development with an Open<br />
Source Real-time Operating System<br />
HTML5 HMI Development with QNX<br />
Developing Next-gen Automotive<br />
User Interface using EB GUIDE 5.3<br />
w/Windows Embedded Automotive<br />
7 and Renesas R-Car H1<br />
Getting Started with Micriµm’s<br />
µC/OS-III Kernel<br />
Embedding TCP/IP: Working<br />
Through uC/TCP-IP Usage<br />
Introduction to the .NET Micro<br />
Framework<br />
System Design<br />
Technologies<br />
Are all Batteries Created Equal?<br />
A/D Converter Fundamentals<br />
Designing Modern Medical Systems<br />
Digital Filtering on a MCU<br />
Infinite Runtime: Energy Harvesting<br />
with Renesas MCUs<br />
Moving from 8-bit to 32-bit MCUs<br />
Battery Management<br />
ADC Resolution: Myth and Reality<br />
Exploring the Safety Features of<br />
the RX210<br />
Low-power Design<br />
Increase the Dynamic Range and<br />
Precision of Digital Filters Using a FPU<br />
RL78 Project Configuration Tips<br />
RX Project Configuration Tips<br />
Sensor Fundamentals<br />
Extreme Low-power Design:<br />
Tools, Design Techniques and<br />
Implementation<br />
Creating Virtual EEPROM on<br />
Renesas MCUs<br />
Implementing Bootloaders on<br />
Renesas MCUs<br />
Designing Energy Harvesting<br />
Applications with the RL78<br />
Portable Instrumentation<br />
Applications with the RL78<br />
Embedded Systems Bootcamp
<strong>EEWeb</strong> PULSE<br />
Preparing Our N<br />
of Young Enginee<br />
Success<br />
Steve Darrough<br />
IXYS-ZILOG - VP of Marketing<br />
H ow can the engineering industry help the<br />
next generation of young engineers get prepared<br />
for their real-world careers in product design? As<br />
we teach the bright young minds of engineering,<br />
who may be already be experts in their own<br />
specializations, about the micro-elements of<br />
components and platform development, it is also<br />
crucial to help them understand the relationship<br />
between these specialized micro-elements and<br />
the total process of product design.<br />
12 28 <strong>EEWeb</strong> | | Electrical Engineering Community
TECH ARTICLE<br />
ext Generation<br />
rs For<br />
Visit www.eeweb.com<br />
13 29
<strong>EEWeb</strong> PULSE<br />
The general complexity of most technology naturally<br />
encourages engineers to specialize within their<br />
particular areas of system design. Because most<br />
technologies are so complex, it often takes a specialized<br />
team to work on the particular elements of a design.<br />
An example of this scenario is the hardware element,<br />
which can be segmented into areas such as power and<br />
control, and even further into more specialties of solar<br />
cells, motor control, and data management. Even in<br />
addition to these areas, there is a need for design of<br />
software applications, development environments, and<br />
other elements. All of these elements of a technology<br />
can be further segmented into functional areas such<br />
as wireless communication, code libraries, and often<br />
many other dependences. A young engineer may find it<br />
beneficial to specialize in one of these areas, and ignore<br />
the work of other areas entirely. However, in order to truly<br />
be successful, he still must have some understanding of<br />
the overall process of product development, as well as<br />
the ability to work with engineers and others involved in<br />
product development.<br />
When first entering the workplace, one of the<br />
challenges young engineers face is to be tasked with<br />
designing new systems; they quickly come up against<br />
many different types of challenges as to how they must<br />
manage their interactions given these dependencies.<br />
Typically, if one team is working on a power system or a<br />
communications transport block, this team may have a<br />
different perspective, knowledge set, or understanding<br />
(based on their area of focus) than that of another team<br />
involved in the development of a different aspect of the<br />
same product. Individual teams may witness that each<br />
of the other key teams has requirements or processes<br />
that are different in some ways than their own. This is<br />
why it is critical that new engineers develop a broad<br />
understanding of how the company’s groups are each<br />
working together toward completing a new product.<br />
Marketing, Sales, Engineering, Manufacturing, and<br />
Fulfillment — each have different SOPs and processes<br />
they follow in delivering their teams’ element of<br />
focus within the context of the final production result.<br />
Engineers should be taught about the importance of<br />
different areas of product development, and offered an<br />
overview of their function, preferably before entering<br />
the workforce, in order to avoid costly and ineffective<br />
mishaps.<br />
One of the ways to help young engineers develop a<br />
broader focus is to encourage the many fine engineering<br />
universities to educate their students early on about<br />
process. Learning about process is great training for the<br />
14 <strong>EEWeb</strong> | Electrical Engineering Community<br />
real world. However, the focus is often put on teaching<br />
engineers to be productive as quickly as possible,<br />
which may seem to benefit a company quickly, as young<br />
professional engineers hit the ground running and<br />
begin producing results quickly. However, even if these<br />
students are encouraged to begin rowing as fast and<br />
hard as they can, the results are empty unless they are<br />
rowing together with the group. Most of us engineers<br />
who are well into our careers have witnessed a wide<br />
variety of experiences and have learned to more-or-less<br />
row together, but for those just coming out of school,<br />
suddenly being asked to think about process and work<br />
with others (rather than simply focus on their one small<br />
specialty area) can be quite challenging.<br />
So what can we do about helping prepare and together<br />
proactively “invest” in the next generation of talented<br />
engineers coming into the workforce? I propose a few<br />
ideas – things we all can consider:<br />
• Don’t wait. Get involved now with educational<br />
platforms that are designed to hit the mark for students.<br />
• Offer up reference designs that are relative to today’s<br />
technology trends.<br />
Zilog Educatio
nal Platform<br />
• Promote special engineering programs that support<br />
the schools. Don’t just throw a few dollars at it; instead,<br />
get your senior engineers to participate to some extent<br />
in those programs.<br />
IXYS and Zilog currently administer an engineering<br />
program in the Philippines with 65 young engineers<br />
who are looking at entire system designs, and who are<br />
designing solutions as teams. Through this program,<br />
students build an understanding about “the entire<br />
process. “ The goal is to get students to understand<br />
that although engineering is a critical part of achieving<br />
optimum results, the process of product development<br />
works best when all aspects of a project are considered<br />
and there is interdependency between different<br />
groups. Students in the program learn that a singular,<br />
linear development process – as opposed to a parallel<br />
process involving interaction with multiple groups –<br />
may ultimately slow a project down (and possibly even<br />
cause critical areas and loss of key reasoning) and in<br />
the end can create new, larger, problems that will hinder<br />
the final result.<br />
These days, when Zilog hosts our “meet and greet”<br />
presentations to students, we first present a holistic<br />
TECH ARTICLE<br />
overview of our university program. The presentation<br />
begins by completely examining the developmental<br />
stage of product development and proceeds to examine<br />
the process all the way through to the launch of the<br />
product and even examines the customers will actually<br />
be buying the product or service. We next define<br />
the entire process and explain how each part of the<br />
organization works in tandem to achieve the best result<br />
of producing a competitive product. All departmental<br />
groups and/or stakeholders are identified as to their<br />
contributions so that the big picture is well-defined.<br />
To cement understanding as to why we’re focusing<br />
on these process points, we also share examples of<br />
missteps or areas in which past programs endured<br />
serious setbacks due to lack of understanding, lack of<br />
communication, and/or plain old sandbox politics.<br />
All of this is food for thought no matter your role, be<br />
it Senior Engineering Manager running your own<br />
development environment, or Executive Director<br />
determining how you will invest in the next generation<br />
of talented engineers. Helping new engineering hires<br />
come to understand the complete developmental<br />
lifecycle as it relates to producing real-world<br />
applications will likely improve the success of your own<br />
products and businesses. The most important resource<br />
in any company is its people. The better engineers,<br />
employers, and teachers understand a company’s<br />
systems and how much more can be accomplished by<br />
working in teams, the need for investment in a broad<br />
education will be clear. Hopefully one day we will see<br />
the results of such education manifest itself in both the<br />
acceleration of new designs and improved end results.<br />
About the Author<br />
Steve Darrough is Vice President of Marketing at<br />
IXYS- Zilog. Steve joined Zilog in 2008. Responsibilities<br />
include management of Zilog marketing presence<br />
from brand to product development and driving the<br />
strategic campaigns for demand creation and growth.<br />
Steve possesses more than twenty years of technical<br />
engineering and marketing management experience,<br />
leading branding and marketing programs. Prior to<br />
coming onboard with Zilog, Steve held marketing<br />
management and technical engineering roles at Intel<br />
Corporations for over 14 years where he had several<br />
teams driving new technologies directly relating to the<br />
current products initiatives, his teams drove worldwide<br />
programs in evangelizing new technologies and<br />
accelerate adoption. Steve has a Marketing Degree<br />
from the University of Oklahoma.<br />
Visit www.eeweb.com<br />
15
1.2A High Efficiency Buck-Boost Regulators<br />
ISL9110, ISL9112<br />
The ISL9110 and ISL9112 are highly-integrated Buck-Boost<br />
switching regulators that accept input voltages either above or<br />
below the regulated output voltage. Unlike other Buck-Boost<br />
regulators, these regulators automatically transition between<br />
operating modes without significant output disturbance.<br />
Both parts are capable of delivering up to 1.2A output current,<br />
and provide excellent efficiency due to their fully synchronous<br />
4-switch architecture. No-load quiescent current of only 35µA<br />
also optimizes efficiency under light-load conditions. Forced<br />
PWM and/or synchronization to an external clock may also be<br />
selected for noise sensitive applications.<br />
The ISL9110 is designed for standalone applications and<br />
supports 3.3V and 5V fixed output voltages or variable output<br />
voltages with an external resistor divider. Output voltages as low<br />
as 1V, or as high as 5.2V are supported using an external resistor<br />
divider.<br />
The ISL9112 supports a broader set of programmable features<br />
that may be accessed via an I 2 C bus interface. With a<br />
programmable output voltage range of 1.9V to 5V, the ISL9112<br />
is ideal for applications requiring dynamically changing supply<br />
voltages. A programmable slew rate can be selected to provide<br />
smooth transitions between output voltage settings.<br />
The ISL9110 and ISL9112 require only a single inductor and very<br />
few external components. Power supply solution size is<br />
minimized by a tiny 3mmx3mm package and a 2.5MHz<br />
switching frequency, which further reduces the size of external<br />
components.<br />
July 13, 2012<br />
FN7649.2<br />
VIN =<br />
1.8V TO 5.5V<br />
C1<br />
10µF<br />
STATUS<br />
OUTPUTS<br />
5<br />
8<br />
7<br />
ISL9110IRTNZ<br />
PVIN<br />
6<br />
VIN<br />
10<br />
MODE<br />
9<br />
EN<br />
BAT<br />
PG<br />
GND<br />
11<br />
VOUT<br />
VOUT =<br />
3.3V/1A<br />
1<br />
LX1<br />
L1<br />
2.2µH<br />
LX2<br />
FB<br />
12 C2<br />
10µF<br />
PGND<br />
3<br />
FIGURE 1. TYPICAL APPLICATION<br />
4<br />
2<br />
Features<br />
• Accepts Input Voltages Above or Below Regulated Output<br />
Voltage<br />
• Automatic and Seamless Transitions Between Buck and Boost<br />
Modes<br />
• Input Voltage Range: 1.8V to 5.5V<br />
• Output Current: Up to 1.2A<br />
• High Efficiency: Up to 95%<br />
• 35µA Quiescent Current Maximizes Light-load Efficiency<br />
• 2.5MHz Switching Frequency Minimizes External Component<br />
Size<br />
• Selectable Forced-PWM Mode and External Synchronization<br />
•I 2C Interface (ISL9112)<br />
• Fully Protected for Overcurrent, Over-temperature and<br />
Undervoltage<br />
• Small 3mmx3mm TDFN Package<br />
Applications<br />
• Regulated 3.3V from a Single Li-Ion Battery<br />
• Smart Phones and Tablet Computers<br />
• Handheld Devices<br />
• Point-of-Load Regulators<br />
Related Literature<br />
• See AN1648 “ISL9110IRTNEVAL1Z, ISL9110IRT7EVAL1Z,<br />
ISL9110IRTAEVAL1Z Evaluation Board User Guide”<br />
• See AN1647 “ISL9112IRTNEVAL1Z, ISL9112IRT7EVAL1Z<br />
EvaluationBoard User Guide”<br />
EFFICIENCY (%)<br />
100<br />
95<br />
90<br />
85<br />
80<br />
V IN = 3V<br />
V IN = 5V<br />
Get the Datasheet and Order Samples<br />
http://www.intersil.com<br />
V IN = 2.5V<br />
75<br />
VOUT = 3.3V<br />
70<br />
0.01 0.05 0.25 1.25<br />
IOUT (A)<br />
FIGURE 2. EFFICIENCY<br />
Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2011, 2012<br />
All Rights Reserved. All other trademarks mentioned are the property of their respective owners.
<strong>EEWeb</strong> PULSE<br />
Homemade<br />
Tools Part 1<br />
Whether you’re a full-time engineer or a hobbyist, it’s<br />
important to recognize the value and potential of your<br />
tools. Even more useful than simply understanding<br />
the value and proper use of tools, however, is knowing<br />
how to build your own specialized tools, or ones that<br />
will work well for new, perhaps unforeseen tasks. It is<br />
also helpful to be able to build your own tools if you are<br />
working with limited resources. Homemade tools can<br />
be very valuable items, and knowing how to make your<br />
own tools can free you from many limitations.<br />
18 28 <strong>EEWeb</strong> | | Electrical Engineering Community<br />
In the first part of this miniseries, I will outline the<br />
process of designing and constructing a tool that will<br />
help me pursue a unique task- in this case, remote data<br />
logging. I hope to demonstrate that you can use off-theshelf<br />
kits to build your own specialized, and possibly<br />
more effective, tools.
Paul Clarke<br />
Electronics Design<br />
Engineer<br />
TECH ARTICLE<br />
Visit www.eeweb.com<br />
19 29
<strong>EEWeb</strong> PULSE<br />
The purpose of this exercise is to focus on the process<br />
of building new tools and reusing kits, rather than to<br />
focus on the particular product itself. The particular<br />
tool I am building is simply a vehicle with which I will<br />
demonstrate the process of building new tools.<br />
Figure 1: Magazine Hobby Project<br />
My aims are a little extreme for a data logger—what I<br />
want is a unit that can monitor analog and digital inputs,<br />
but the data that I gather must both be recorded locally<br />
and also available for downloading later. I’d also like to<br />
be able to do this remotely, and to be able to start and<br />
stop the logging at set time intervals. And — of course<br />
— all of this has to be done wirelessly.<br />
What I really need is a box that can be dropped anywhere<br />
– even a place where power is no available—that can<br />
carry out the local instrument recording. Because of<br />
these special requirements, I will need to build a tool of<br />
my own specifications.<br />
The exact number of inputs for my project does<br />
not matter because this is an example project, but<br />
considering how many inputs you need is a good place<br />
to start when building such a tool.<br />
20 <strong>EEWeb</strong> | Electrical Engineering Community<br />
After determining what your needs are, you should look<br />
for a cost-effective platform to build your tool on. For<br />
example, if you want to make your own multi-channel<br />
logic analyzer, you would probably want to consider an<br />
FPGA-based board. In my case, because analog inputs<br />
and data storage are both important, kits such as the<br />
Arduino, AVR, Microchip, and mbed boards jump to<br />
mind. All of these have analog inputs, free programming<br />
environments, available code to add on, and even welldocumented<br />
interfaces for storage devices like USB<br />
flash drives.<br />
Kits like the Microchip development boards tend to be<br />
focused on an application. Programming directly onto a<br />
micro can also be too time-consuming—it will take time<br />
to add libraries, debut, etc. For these reasons it’s easy<br />
to see that the mbed and Arduino platforms stand out<br />
as being quick and easy to work with, and since I want<br />
some storage, the mbed seems to be the best choice for<br />
this my example project. Not only does it have its local<br />
file system that can store data, but it can also be used in<br />
conjunction to an external USB Flash drive – it doesn’t
Figure 2: Mbed<br />
need any hardware besides a physical connector. The<br />
mbed is also quite fast, which should make grabbing<br />
values from the ADC and digital inputs fast too — how<br />
fast is yet to be seen.<br />
Next on my detail list is the need for wireless capability.<br />
There are, once again, lots of different wireless units<br />
available that run on various protocols. For example,<br />
I could use a network like WiFi, but I think this option<br />
would require too much overhead, so instead, a simple<br />
serial communication will work just fine. One of the<br />
most popular serial communication modules around is<br />
the Xbee.<br />
Figure 3: Xbee<br />
Xbee modules allow for complex mesh networks, or as<br />
my project requires, direct point to point. However, this<br />
also means that at the other end of the link, I will need<br />
TECH ARTICLE<br />
the same type of Xbee compatible device to talk to my<br />
computer – though that shouldn’t be a problem as Xbee<br />
compatible devices are easy to make or buy.<br />
My little project is coming together. In Part 2, I’ll take the<br />
next step of starting to build the hardware and outlining<br />
what else I will need as I proceed.<br />
About the Author<br />
Digital Electronics Engineer with strong software skills<br />
in assembly and C for embedded systems. At ebmpapst<br />
I’m developing embedded electronics for thermal<br />
management control solutions for the air movement<br />
industry. These controllers monitor environmental<br />
inputs like Temperature, Humidity and Pressure and<br />
then control the speed of our fans based on various<br />
profiles. Our controls also interface with other systems<br />
over RS232/485 or TCP/IP as well as a host of other user<br />
or control interfaces.<br />
Visit www.eeweb.com<br />
21