Bang & Olufsen ICEpower a/sGl. Lundtoftevej 1bDK-2800 Kgs. LyngbyDenmark

Phone: [45] 45 20 36 00Fax: [45] 45 20 36 99

Website:www.icepower.bang-olufsen.com

E-mail:ICEpowerinfo@bang-olufsen.dk

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ICEpower inventor, Ph.D. Karsten Nielsen

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Bang & Olufsen ICEpower a/sAiming for ideal audio power conversion, the newly established company, Bang &Olufsen ICEpower a/s has already come far.

As the result of many years of fundamental research within the field of audio powerconversion, Bang & Olufsen ICEpower a/s was founded in 1999. The hard work wasturned into technology platforms and the exploration of a wide range of ICEpowerapplications could begin.

For the first time in the 75-year of Bang & Olufsen history, a private person has beengranted joint ownership. This joint venture between Bang & Olufsen a/s and theICEpower inventor, Ph.D. Karsten Nielsen, is the perfect combination. The establishedorganization with its experience and well-known quality products turns the ideas ofthe young entrepreneurial scientist into reality.

Bang & Olufsen ICEpower a/s is reality and the lines are drawn for furtherrevolutionary research and development. Successfully, the first audio power amplifierproducts have been marketed, and Bang & Olufsen ICEpower a/s is moving closertowards the vision for ICEpower to be used everywhere!

ICEpower

The innovator Bang & Olufsen ICEpower a/s aim to revolutionize the world of audio power conversion through technological leadership. Our core competence is innovation of intelligent audio power conversion technologies – a direct consequence of our universityheritage. Creative and alternative thinking allow us to find solutions never seen before.

Today, audio power conversion is dominated by old inefficient technologies for power supply design, audio amplification, andelectric to acoustic power conversion. The efficiency from the mains input to the acoustic output can be 1/10,000 at normal outputlevels in a typical audio product, leading to excessive heat development and numerous related drawbacks, including compromiseson sound quality. A paradigmic change in the audio power conversion chain requires fundamental rethinking on how to convertand control power.

Founded on a vision of changing the future, Bang & Olufsen ICEpower a/s strive for such a paradigmic change in the industry bycreating Intelligent, Compact and Efficient audio power conversion technologies and products.

ICEpower UniversityBeing at the cutting edge of technology requires the best minds. A closecooperation with the Technical University of Denmark, which is located just a milefrom our premises, has resulted in the ICEpower University, training the minds forthe future.

Since 1994, the ICEpower University has been a core element in solving the mostcomplex riddles in audio power conversion as an integrated part of our R&Ddepartment. The close cooperation is the very core of ICEpower technologydevelopment. Teamwork based on systematic research combined with creativity hasresulted in a series of patented technological solutions as well as numerous scientificpapers demonstrating our abilities in novel thinking.

A selection of our scientific publications is available for download on our websitewww.icepower.bang-olufsen.com.

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ICEpower1000A module placed in aBeoLab 2 speaker from Bang & Olufsen a/s

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ICEpower – Intelligent, Compact and EfficientICEpower presents a great potential in any type of audio reproduction. The benefits are many as demonstrated by our ICEpowerwheel.

Sound QualityICEpower technologyrepresents a clear industryleading performancemeasured on all relevantparameters. Our soundquality is rated as excellentbased on numerousobjective tests as well ascustomer feedback.

InvarianceICEpower is invariant tocomplex loading, powersupply variations andtolerances in general.Utilizing robust controlsystems as an integral partof the intelligent powerprocessing causes thisbenefit.

RobustnessICEpower products offerboth electrical andmechanical robustness. OurICEpower control systemssecure the electricalperformance. Themechanical performance issecured by the ultracompact and ruggeddesign, making ourproducts able to withstandrough mechanical andenvironmentalrequirements of e.g.acoustic environments inactive systems and toughprofessional applications.

ProductivityICEpower offers the highest productivity, as the products areimplemented as highlyintegrated plug andreplace modules. Thisminimizes design-in timeand secures efficientmanufacturing.

FreedomThe efficiency of ICEpowertogether with thecompactness of theresulting products providesour customers withnewfound freedom inelectrical, acoustic andmechanical product design.

Cost EfficiencyICEpower increases totalcost efficiency. IntegratedICEpower products reduceR&D effort, power supplysize, chassis size, nearlyeliminates heat sinking etc.

ReliabilityICEpower means improvedreliability as a result of cooloperation. This reducedheat development increasesthe product lifetimedramatically.

Cool OperationICEpower technologyensures cool operation inany audio application. Byreducing the heatgenerating powerdissipation by 5 to 10 timesunder normal use,traditional heat relatedconstraints in audio systemdesign are easily overcome.

Energy SavingsICEpower technologyprovides significant energysavings. In normal use, theenergy consumption isreduced by a factor of 10compared withconventional technology.This makes ICEpowerleading in energy efficiencyand ensures environmentally

sound products. Energysavings are extraordinarybeneficial in battery-basedapplications. Here ICEpowerallows for an up to 10 timeslonger battery life.

ICEpower is in continuous development in order to achieve even more intelligent,more compact, and more efficient solutions.

ICEpower AnalogICEpower Analog is based on an analog modulation method.The heart of the technology is a combination of two newprinciples named Controlled Oscillation Modulation (COM) andMultivariable Enhanced Cascade Control (MECC). Together, the

COM and the MECC form the intelligent power processing“brain” of the technology. ICEpower Analog is a versatiletechnology offering industry-leading performance on allrelevant parameters from milliwatt to kilowatt.

ICEpower DigitalICEpower Digital is a unique technology integrating digitalinterface, PCM to PWM conversion, and control system.ICEpower Digital is the first digital modulation-based systemincorporating highly efficient power stage error correction,securing state-of-the-art performance.

ICEpower incorporates various proprietary algorithms,including our Weighted Pulse Width Modulation (WPWM)method. The proprietary control system Pulse Edge Delay Error

Correction (PEDEC) secures high digital performance throughthe entire chain of complex power conversion elements. Finally,we have developed an Intelligent Volume Control (IVC) methodin order to overcome the dynamic range limitations, offeringdynamic range performance up to 140dB.

ICEpower Digital is a versatile technology and can be used inapplications from milliwatt to kilowatt.

D A CDigital input

110001101...

Analog input

Power Supply

DemodulationPower

Conversion

COM ModulatorMECC Control

PEDEC ErrorProcessing &

Correction Unit

Power Supply

DemodulationPower

Conversion

Digital input

110001101...

Volume control

WPWM Modulator

IVC

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ICEpower technology platforms The essence of the patented ICEpower technology is innovative thinking in modulationand control techniques. Presently, we operate with 5 technology platforms, ICEpowerAnalog, ICEpower Digital, ICEpower Professional, ICEpower Supply, and ICEpowerAutomotive.

ICEpower

ICEpower ProfessionalICEpower Professional has been developed for the professionalaudio market. The technology is highly suitable for poweramplification in the kW range, by implementing an efficiencyof up to 96% in 8 ohm loading.

ICEpower Professional is based on our proprietary BalancedPhase Shifted Carrier Pulse Width Modulation (BPSCPWM). Theadvantages of COM modulation have been translated intomulti-level modulation in terms of a modulation and controlmethod we call Synchronized Controlled Oscillation

Modulation (SCOM). Like COM, SCOM provides additionalbenefits compared with using conventional carrier basedmodulation. ICEpower Professional generates multi-level,common mode free outputs allowing the power stage tooperate at very low switching frequencies.

Although ICEpower Professional is a versatile technology, itproves to be extraordinary advantageous in power ranges from500W to 10kW.

ICEpower AutomotiveThe automotive environment has very special requirements.Power processing starts from the battery voltage. Due to verydistinct EMI requirements, we have developed a dedicatedautomotive platform, converting power from the battery tothe audio output.

The ICEpower Booster technology is completely dedicated todrive the ICEpower amplifiers. Furthermore, the dedication tothe application secures a highly integrated and optimizedtechnology.

SCOM Modulation & Control

PSCPWMPower Processing

Power Supply

DemodulationPower Conversion

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D A CDigital input

110001101...

Analog input

ICEpower Booster ICEpower amplifier

Amp.

ICEpower amplifier

Amp.

Signal in

Signal in

Battery

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ICEpower SupplyThe ICEpower Supply technology platform represents a seriesof switch mode power supply technologies. The power supplytechnologies have been developed to completely match therequirements of our amplifier technology platforms. ICEpowerSupply is dedicated to audio applications. High dynamic powercapability, overload protection, and idle power consumptionare in focus. Also, ICEpower Supply is developed

for EMI compliance with consumer and professional audioapplications.

Together, our audio amplifier technology platforms andICEpower Supply fulfill the demands of state-of-the-art audiopower management from the mains to the acoustic output.

ICEpower Supply ICEpower amplifier

ICEpower amplifier

Amp.

Amp.

Signal in

Signal in

Mains

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Serving our customers Bang & Olufsen ICEpower a/s strive to serve our customers the best possible way byoffering differentiated and flexible products and services. Turning the ICEpowertechnology into products requires a flexible organization, which allows for creativethinking and experimenting, maintaining a systematic and structured verification ofthe ideas. We strive to serve our customers by understanding their needs anddifferentiate our products and services accordingly.

Our Converter Business Unit (CBU) develops state-of-the-art audio power conversionproducts with a high level of integration. These off-the-shelf catalogue products offera minimized design-in time, a high proven quality from volume production as well ascost competitiveness.

The System Business Unit (SBU) offers turn-key solutions according to customerrequirements in e.g. audio performance, power level, electrical and mechanicalarchitecture, feature set etc. - any differentiation is possible. This OEM-orientedbusiness is particularly suitable for serving customers in cost sensitive volume projectsor projects with special performance requirements. Each project is defined on anindividual basis focusing totally on customer’s requests.

Our Partner Business Unit (PBU) offers our ICEpower technology platforms on licensebasis to volume customers or customers with special requirements such as ICEpower ICimplementation.

CBU

The ICEpower Converter Business Unit(CBU) generates state-of-the-artconverter products and services.

SBU

The ICEpower System Business Unit (SBU)works closely with customers who needcomplete turnkey solutions from themains input to the power output.

PBU

The ICEpower Partner Business Unit(PBU) is dedicated to serving partnersand strategic alliances.

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CBURTA Research & Technology Access

TPD Technology Platform Development SBU

PBU

ICEpower

Unimaginable solutionsDesign PhilosophyThe ICEpower design philosophy is quite simple. Our aim is to make the best sound andenergy efficiency out of simple designs. This is our key to realization of the best totalperformance regarding sound quality, efficiency, and complexity. We have experiencedthat with ICEpower an excellent sound quality does not necessarily mean a high pricelevel.

Our ProductsOur products have the best audiospecifications in the industry of switchingaudio power conversion. Bang & OlufsenICEpower a/s innovate products that aremore intelligent, compact and efficientthan ever imagined. Our products requirehardly any cooling, have better soundquality and competitive total costefficiency.

Following the footsteps of the high qualityproducts from Bang & Olufsen a/s,ICEpower products are manufactured onlyat the best manufacturing plants. Wecarefully evaluate and choose our plants,in order to assure that our customersreceive only the most reliable and superiorquality products.

Striving for market leadership in productquality and reliability, our manufacturingplants in Denmark as well as Malaysiaundergo continuous inspection, evaluationand control by Bang & Olufsen qualityassurance. Together, we strive to constantly improve and optimize productiontechniques. Both our manufacturing plants are ISO 9001 certified. The combination ofmanufacturing in both Denmark and Malaysia ensures the customer a high qualityproduct at the lowest possible cost.

For further information on our products please visit our website www.icepower.bang-olufsen.com and download our product- and data sheets or order them as hard copies.