CSC is glad to present the new Version 2 of its Design Tools for 2013. These design spreadsheets are intended to help design engineers reduce design lead times, optimize the design of power reactors and boost reactor for residual power and output line filters for inverters. These design tools will assist design engineers in selecting the optimum core (the smallest core size for the given input parameters), thus minimizing the number of interactions required to select the optimum core.

Design tool spreadsheets are included for:

This design spreadsheet is a powerful and easy to use design tool. Designers just need to enter the core size and material type. Then define the design parameters such as required inductance (L in µHenries), number of turns (N), rated current (Amps), current ripple rate (%) and frequency (KHz). The software will automatically calculate the inductance values from no load (0 Amps) all the way up to the inductance value at full load (Peak current). AC and DC core and total losses will be also calculated. In addition, the spread sheet will show the DC Bias performance characteristics graphs for all different available permeabilities for the chosen core.

Unique highly thermally conductive graphite fibers (1900 W/m°K) are used to create a Z-axis bulk thermal conductivity of 750 W/m°K (at 40% fiber volume) . . . twice the thermal conductivity of pure copper.

HM-2 Thermally Conductive Adhesive Film is currently being used or evaluated for a variety of Thermal Interface Material applications, including die attach, LED assembly, heat pipe attachment, heat sink attachment and production dice thermal test equipment. An on-going product improvement program (see PowerPoint presentation) has already demonstrated lower total thermal resistance and this will be incorporated into our production process in the near future. A combination of lower interface resistance and higher bulk conductivity will be needed to reach our HM-2 performance Goal.

HM-2 Application Bonding: See Thermoplastic Film Bonding Page, Section A. All instructions f or NTP/TP-3 also apply to HM-2 since they all use the same thermoplastic resin.

LTspice IV is a high performance SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators. Enhancements to SPICE have made simulating switching regulators extremely fast compared to normal SPICE simulators, allowing the user to view waveforms for most switching regulators in just a few minutes. Included in this download are LTspice IV, Macro Models for 80% of Linear Technology’s switching regulators, over 200 op amp models, as well as resistors, transistors and MOSFET models.

Use one of the 100′s of demo circuits available, a pre-draafted test fixture (JIG) or use the schematic editor to create your own design.

Benefits of Using LTspice IV

• Stable SPICE circuit simulation with
• Unlimited number of nodes
• Schematic/symbol editor
• Waveform viewer
• Library of passive devices

Fast simulation of switching mode power supplies (SMPS)

• Steady state detection
• Turn on transient
• Step response
• Efficiency / power computations

Cool BLUE cores have been established as an effective solution to prevent damaging motor bearing currents in modern inverter motor systems. This solution can be retrofit easily. Cool BLUE cores are inductive absorbers made of NANOPERM(R), a high grade nanocrystalline material with extremely low losses and good frequency behavior.

The new MH&W Thermal website allows the focus to be placed on customers looking for thermal solutions. Here you will find product info, datasheets and specifications, thermal industry news, sales contacts and quote information, all geared exclusively towards the thermal management customer.

With the high packing density of power semiconductors, transistor chips and discrete components, etc., the generated heat has to be conducted away as efficiently as possible. MH&W has solutions for almost every type of heat problem and application by offering films, adhesive tapes, thermal grease, gap fillers and other material forms from a variety of manufacturers.

Please visit us at http://www.mhw-thermal.com!

Hurricane Sandy severely interrupted our communications infrastructure, including phone, email, and computer systems as well as our supply chain for a full week. Although many team members of MH&W are still without power in their homes, everyone is ‘onboard’ ready to provide the very best service.

Important: If you have sent emails between October 29, 2012 and Monday November 5, 2012 and received bounced messages, please be so kind and resend the message.

Thank you all for your patience, understanding, and support.

Sincerely,
Your MH&W Team

Do you need custom gapping of cores?

MH&W will provide you with:

Free Sample Cores

• up to 5 sets
• up to 40 mm
• other core restrictions may apply

Choose from:

• Precision Gapping
• Precision Cutting
• Precision Slicing
• Precision Grinding
• Planar Core Conversion
• Height Modification

All at absolutely no cost! You just pay shipping.

Choose from our selection of TDK, TDG and Epcos cores, up to 5 sets.

Service is fast and dependable with turnaround time of 3 days.
(subject to availability and stock)

Please use our Request Free Gapping of Samples form at:
http://www.mhw-intl.com/free-gapping-of-samples

Still have questions? Need more details? Call us at (201) 891-8800
or email us at customcores@mhw-intl.com

We look forward to working with you.

As a part of our internationally recognized sales team, Ms. Mattina will concentrate her efforts on emerging markets, as well as support our traditional power market. She will be responsible for supporting MH&W suppliers, while having direct customer interface in all markets.

Jen has many years of experience in the industrial markets, and a proven track record of success in sale, which will be invaluable in achieving our objectives. Her excellent communication skills will enhance our teams’ ability to achieve its goals.

Jen will be an excellent addition to the MH&W family and a valuable asset the our phenomenal sales team on staff. Please join me in welcoming Jen to MH&W International, Corp.

Jen Mattina is located in the Mahwah, NJ office, and can be reached at 201-891-8800 x555 or jenm@mhw-intl.com.

Mega Flux Ellipsoidal cores advantages.

The advantages of ellipse core made out of Mega Flux material are:

1.) More effective winding (less copper usage);

2.) Wider window area than regular blocks and cylinder cores

For better illustration, please refer to the below comparison matrix among Std Block core, Cylinder core and Ellipse Core.

3.)

	Block Core	Cylinder Core	Ellipse Core
Cross Sectional Area (cm2)	3.0 x 1.5 = 4.5	OD 2.4 = 4.5	3.3 x 1.5 = 4.5
Wire Length per turn (cm)	9	7.53	8.31
Reference	Longer wire length for 1 turn	Smaller Window Area	wider Wa than block and cylinder cores wire length 8% shorter than block core

4.) Improved DC Bias Performance

Improved DC Bias performance allowing the reduction of copper usage resulting in lower losses compared to standard Mega Flux block cores.

The usual powder materials used in block cores is Mega Flux, a powder form of Iron and Silicon, and High Flux, a powder form of Iron and Nickel.  There are advantages and disadvantages between the Mega   Flux and High Flux.  The Ellipse core makes a successful compromise between the two materials.

From the graph 1 below you can see the LK (Ellipse Mega Flux) shows higher DCB (DC Bias) over most of the scale.  This gives the advantage to the Ellipse core.

From the Table below, you can also see that the Ellipse core has advantages over the Block core.

Product Range

Ellipse cores (LK series) are available in 60x35mm and 70×35 mm. Posts are available in 35x15mm and 35x15mm. All ellipse cores are available in 26, 40 and 60 Mega Flux material.

See More: Available LK Cores Specifications and Dimensions

Applications

Ellipse cores are meant to be used mainly in high current applications thus making them suitable for use in Solar power applications, UPS inverters and reactors used in Electrical vehicles, including charges.

Conclusion:

Design engineer will find LK Ellipse core to be a viable alternative (economic wise) in many high current applications versus High Flux and standard Mega Flux block cores, thus they can expect low cost and improved  DC Bias performance at the same time.

Quick Info

• WINDPOWER 2012 Conference and Exhibition
• Location:Atlanta, Georgia
• Dates:June 3-6
• Booth:#7162
• Website: www.windpowerexpo.org

All the Major Players in the Wind Energy Industry Attend and Exhibit at WINDPOWER.

WINDPOWER® is the focal point for wind professionals to network with and learn from industry leaders and experts, and to discover the latest in industry products and services. All of your industry peers – and competitors – will be at WINDPOWER 2012; it’s where serious wind professionals convene to grow their companies, find solutions to their business challenges, and reconnect with colleagues and friends.

This year’s exhibition will host many impressive new features, events, and attractions.

More than 1,000 exhibitors and 300,000 square feet of exhibit space – spread over eight exhibit halls… this exhibition has it all! WINDPOWER exhibition displays the latest industry products and services from manufacturing leaders, component suppliers, and other wind energy organizations. The largest wind-focused exhibition in the world, WINDPOWER is the place to peruse products and services, learn about brand names in the industry, network with leading industry decision makers, and generate numerous high-quality business leads. WINDPOWER exhibitors are not only leaders in the wind industry, but as AWEA members, support AWEA’s efforts to push wind industry policy, regulatory, and business development objectives.

Education

WINDPOWER provides you with unmatched educational sessions, Industry Essentials, and poster presentations providing the latest information on wind energy technology, industry trends, policies, and much more.

Exhibition

Featuring the largest wind-focused exhibit hall in the United States, WINDPOWER displays the latest industry products and services from manufacturing leaders, component suppliers, and other wind energy companies.

Networking

Wind industry professionals, experts, leaders, decision makers, and researchers who are serious about the wind industry participate in WINDPOWER each year. This event is your opportunity to meet new client prospects, represent your company, and learn the business of wind.

E, EQ, U AND TOROIDAL design tools are a powerful aid to assist design engineers choosing the optimum core size and material for a specific power inductor application. Design Engineers just need to enter their design parameters such as block size, required inductance (L in µHenries), number of turns (N), rated current (Amps), current density (A/mm²) current ripple rate (%) and frequency (KHz) into the spread sheet and it will automatically calculate the DC Bias characteristics – in other words the remaining Inductance values at different DC Bias conditions ranging from inductance value at no load (0 Amps), up to the inductance value at full load (Peak Current) -.

Core and total losses for AC and DC conditions will be automatically calculated by the design spread sheet. It is worthy to mention that the spread sheet will also characterize the DC Bias performance of the chosen core made out of the different available permeabilities and will display a DC Bias Performance graphs, thus helping design engineer to determine the optimum core for their specific application.

View available CSC Design Tool downloads