Magnetics Business & Technology - Summer 2012 - (Page 22)

APPLICATION • COMPONENT DEVELOPMENTS New 120 kHz Bandwidth, High Voltage, 3.3V Current Sensor IC with Integrated Overcurrent Detection nology, guarantees low ripple at output and low offset drift in high-side, high voltage applications. The voltage on the overcurrent input (VOC pin) allows customers to define an overcurrent fault threshold for the device. When the current flowing through the copper conduction path (between the IP+ and IP– pins) exceeds this threshold, the open drain overcurrent fault pin will transition to a logic low state. Factory programming of the linear Hall sensor IC inside of the ACS716 results in accuracy in both analog and digital output signals. The internal resistance of the copper path used for current sensing is typically 1 mΩ, for low power loss. Also, the current conduction path is electrically isolated from the low voltage sensor inputs and outputs. This allows the ACS716 family of sensor ICs to be used in applications requiring electrical isolation, without the use of opto-isolators or other costly isolation techniques. The ACS716 is priced at $1.95 in quantities of 1,000. Allegro MicroSystems, Inc. has released an open loop Halleffect sensor IC with near closed loop performance (in accuracy and bandwidth). Allegro’s ACS716 current sensor IC provides an economical and precise means for current sensing applications in industrial, commercial and communications systems. The device is offered in a small footprint surface mount package that allows easy implementation in customer applications, and is optimized for 3.3 V supply operation. The ACS716 consists of a precision linear Hall sensor integrated circuit with a copper conduction path located near the surface of the silicon die. Applied current flows through the copper conduction path, and the analog output voltage from the Hall sensor IC linearly tracks the magnetic field generated by the applied current. The accuracy of the ACS716 is maximized with this proprietary packaging configuration because the Hall element is situated in extremely close proximity to the current to be measured. High level immunity to current conductor dV/dt and stray electric fields, offered by Allegro proprietary integrated shield tech- Bruker Releases BNL for Efficient, Sustainable and Economic Magnet Operation in NMR Magnet-Physics Inc. 9001 Technology Drive Suite C-2 Fishers, IN 46038-2848 Contact: Reinhold Strnat Phone: 317-577-8700 Fax: 317-578-2510 Email: info@magnet-physics.com Web site: www.magnet-physics.com Magnet-Physics Inc. provides North American sales and technical service for the products of Magnet-Physik Dr. Steingroever GmbH of Cologne, Germany, a worldwide supplier of high-quality magnetizing and magnetic test equipment since 1976. We provide manually operated and fully automated magnetizing and calibrating systems from 300J to 300kJ energy, and will work with your automation supplier. The company has been ISO 9001 certified since 1995. We also manufacture Hall-effect gaussmeters, fluxmeters, Helmholtz- and other flux-sensing coils. Our laboratories in the USA and Germany offer magnetic measurement services for permanent magnets and soft magnetic materials, and traceable calibration of gaussmeters, fluxmeters and coils. Bruker has released the BNL (Bruker Nitrogen Liquefier) accessory, available now for its Ascend NMR magnet product line up to 700 MHz. NMR customers can now benefit from extended cryogenic maintenance intervals for improved user convenience, increased flexibility for long-term experiments and lower cost of ownership. The BNL can be installed on one of the magnet’s nitrogen ports enabling it to re-liquefy the nitrogen gas evaporating from the magnet dewar. The re-liquefaction process is essentially 100 percent efficient, ensuring near zero nitrogen boiloff for Ascend magnets up to 700 MHz. Operators of NMR equipment are freed from the weekly or bi-weekly routine of nitrogen filling, thus reducing cryogenic maintenance to helium refills only, which are typically spaced many months apart. The BNL features a Cryostat Monitoring Unit (CMU) ensuring easy visual status monitoring, while Bruker’s Magnet Information and Control Software (MICS) provides an overview of nitrogen level, pressure and cryocooler temperature. The BNL development follows the success of the BSNL, the nitrogen reliquefaction accessory that has for several years enabled CryoProbe customers to use the extra cooling capacity of the latest generation CryoPlatform to re-condense the evaporating nitrogen gas from the magnet dewar . The new BNL is an addon magnet accessory now offering the same benefits for systems without CryoProbes. 22 Magnetics Business & Technology • Summer 2012 www.MagneticsMagazine.com http://www.magnet-physics.com http://www.magnet-physics.com http://www.MagneticsMagazine.com

Table of Contents for the Digital Edition of Magnetics Business & Technology - Summer 2012

Magnetics Business & Technology - Summer 2012
Editor's Choice
Injection Molded Magnets for Electrical Machines
The Process of Developing and Testing a New Transformer
Rare Earths & Corporate Social Responsibility
Research & Development
RE-use, RE-duce, RE-cycle, RE-place
Magnets • Materials • Measurement
Application • Component Developments
Industry News
Rare Earth Crisis Dissected: Securing the Future
Marketplace
Advertising Index
Spontaneous Thoughts: The End of Axial Pressing?

Magnetics Business & Technology - Summer 2012

Magnetics Business & Technology - Summer 2012 - (Page Intro)
Magnetics Business & Technology - Summer 2012 - Magnetics Business & Technology - Summer 2012 (Page Cover1)
Magnetics Business & Technology - Summer 2012 - Magnetics Business & Technology - Summer 2012 (Page Cover2)
Magnetics Business & Technology - Summer 2012 - Magnetics Business & Technology - Summer 2012 (Page 3)
Magnetics Business & Technology - Summer 2012 - Editor's Choice (Page 4)
Magnetics Business & Technology - Summer 2012 - Editor's Choice (Page 5)
Magnetics Business & Technology - Summer 2012 - Injection Molded Magnets for Electrical Machines (Page 6)
Magnetics Business & Technology - Summer 2012 - Injection Molded Magnets for Electrical Machines (Page 7)
Magnetics Business & Technology - Summer 2012 - Injection Molded Magnets for Electrical Machines (Page 8)
Magnetics Business & Technology - Summer 2012 - Injection Molded Magnets for Electrical Machines (Page 9)
Magnetics Business & Technology - Summer 2012 - The Process of Developing and Testing a New Transformer (Page 10)
Magnetics Business & Technology - Summer 2012 - The Process of Developing and Testing a New Transformer (Page 11)
Magnetics Business & Technology - Summer 2012 - The Process of Developing and Testing a New Transformer (Page 12)
Magnetics Business & Technology - Summer 2012 - Rare Earths & Corporate Social Responsibility (Page 13)
Magnetics Business & Technology - Summer 2012 - Rare Earths & Corporate Social Responsibility (Page 14)
Magnetics Business & Technology - Summer 2012 - Rare Earths & Corporate Social Responsibility (Page 15)
Magnetics Business & Technology - Summer 2012 - Research & Development (Page 16)
Magnetics Business & Technology - Summer 2012 - RE-use, RE-duce, RE-cycle, RE-place (Page 17)
Magnetics Business & Technology - Summer 2012 - RE-use, RE-duce, RE-cycle, RE-place (Page 18)
Magnetics Business & Technology - Summer 2012 - RE-use, RE-duce, RE-cycle, RE-place (Page 19)
Magnetics Business & Technology - Summer 2012 - RE-use, RE-duce, RE-cycle, RE-place (Page 20)
Magnetics Business & Technology - Summer 2012 - Magnets • Materials • Measurement (Page 21)
Magnetics Business & Technology - Summer 2012 - Application • Component Developments (Page 22)
Magnetics Business & Technology - Summer 2012 - Application • Component Developments (Page 23)
Magnetics Business & Technology - Summer 2012 - Industry News (Page 24)
Magnetics Business & Technology - Summer 2012 - Rare Earth Crisis Dissected: Securing the Future (Page 25)
Magnetics Business & Technology - Summer 2012 - Rare Earth Crisis Dissected: Securing the Future (Page 26)
Magnetics Business & Technology - Summer 2012 - Rare Earth Crisis Dissected: Securing the Future (Page 27)
Magnetics Business & Technology - Summer 2012 - Rare Earth Crisis Dissected: Securing the Future (Page 28)
Magnetics Business & Technology - Summer 2012 - Advertising Index (Page 29)
Magnetics Business & Technology - Summer 2012 - Spontaneous Thoughts: The End of Axial Pressing? (Page 30)
Magnetics Business & Technology - Summer 2012 - Spontaneous Thoughts: The End of Axial Pressing? (Page Cover3)
Magnetics Business & Technology - Summer 2012 - Spontaneous Thoughts: The End of Axial Pressing? (Page Cover4)
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