ADVERTORIALS


AVX introduces 25V rating and extended capacitance range to its industry-leading MIL-PRF-49470 SMPS capacitor family


Featuring an expanded voltage and capacitance range, AVX’s SMPS series MLC capacitors are ideal for high-current, high-power and high-temperature applications


AVX Corporation, a leading manufacturer of advanced passive components and interconnect solutions, has expanded the voltage and capacitance range of its MIL-PRF-49470-qualified SMPS Series stacked MLC capacitors by adding a 25V capacitor to the original 50-500V offering. The new 25V SMPS capacitor currently features standard MIL- PRF-49470 Level “B” reliability; however, a parallel component with T-Level reliability for space applications is under qualification.


“Currently, AVX the only supplier listed on the 25V MIL-PRF-49470 QPL. Consequently, this latest expansion of our SMPS Series will provide engineers with a much-needed lower voltage capacitor solution using proven technology specifically designed for applications that require high-reliability performance in harsh environments,” said Dan Shields, North American Product Manager at AVX.


Designed for high-current, high-power, and high-temperature applications, AVX’s MIL-PRF-49470 SMPS capacitors exhibit very low ESR and ESL and can withstand temperatures ranging from -55°C to +125°C. Primarily used in the input/output filters of high-power and high-voltage power supplies, as well as in bus filters and DC snubbers for high- power inverters, the SMPS Series is also ideal for DC/DC converters, general and switched-mode power supplies, aerospace instrumentation panels, and a variety of hybrid power and military applications.


AVX’s SMPS Series capacitors are available in six case sizes and with a variety of through-hole and surface-mount lead options in order to both provide effective mechanical decoupling of the ceramic chips from the board and minimize stress during board flexing, vibration, and temperature cycling in a broad range of applications. Lead frames are attached to the chips using high temperature solder, so there is no risk of solder reflow during board assembly. SMPS Series capacitors are also available in both unencapsulated (MIL-PRF-49470/1) and encapsulated (MIL-PRF-49470/2) packaging technologies, providing design engineers with an enhanced reliability and durability option.


Capacitance ranges for AVX’s MIL-PRF-49470-qualified SMPS Series are as follows: 25V = 1.5–390 F, 50V = 1-270 F, 100V = 0.68-180 F, 200V = 0.47-120 F and 500V = 0.15-39 F. Due to the number of available options within the SMPS Series, all parts are priced upon request. Lead time is 11-14 weeks.


AVX Corporation Tel: 01276 697000 www.avx.com


New IXYS Surface Mount Power Device (SMPD)


and Mini SMPD Packages IXYS introduces a new packaging technology – the Surface Mount Power Device (SMPD) package. It is an expansion of the ISOPLUS™ package portfolio, which has been providing isolated-package solutions to the power electronics industry for more than a decade. Compared to copper-based lead-frame packages, these devices exhibit better thermal performance, lower weight, and better power cycling capability.


The SMPD package can be easily surface- mounted on a Printed Circuit Board (PCB) using a standard pick-and-place and reflow soldering process. No costly screws, cables, bus-bars or hand soldered contacts are needed. Weighing only 8g, it is much lighter (typically by 50%) than comparable conventional power modules, thereby enabling lower weight power systems.


IGBTs: Topologies:


Diode bridges: Topologies:


Single, Dual & Chopper


Voltage ratings: 600V, 650V & 1200V Current ratings: Up-to 120A (Tc=25 deg C)


Single & Three phase


Voltage ratings: 1200V & 1800V Current ratings: Up-to 124A (Tc=90 deg C)


Europower Components Ltd Tel: 01522 514 231


Email: sales@europowercomponents.com www.europowercomponents.com


60 Watt Convection Cooled Medical Power Supply from Emerson Network Power Operates up to 80 Degrees Celsius


Emerson Network Power, a business of Emerson and a global leader in delivering scalable embedded computing technology and power supplies for original equipment manufacturers in a wide range of industries, today announced the latest addition to its portfolio of 60 W convection cooled open-frame ac-dc power supplies. The new NPS64-M has a 15 Vdc output, which can be adjusted by plus or minus 20 percent, and can deliver up to 4 A. It has a full load operating temperature range of zero to 50 degrees Celsius, and can be used up to 80 degrees Celsius with suitable de-rating.


Emerson Network Power’s latest NPS64-M power supply carries a comprehensive set of worldwide IT equipment (ITE) and non-patient contact and non-patient critical medical safety approvals. The model has a compact 2 x 4 inch (51 x 102 mm) footprint and a height of just 1 inch (26 mm), which makes it ideal for use in light industrial, instrumentation and process systems, as well as in low-power dental and laboratory equipment. An optional enclosure kit (LPX50) is available for maximum protection.


The NPS64-M has a peak efficiency of 90 percent, and meets a variety of rigorous energy efficiency standards, including International Efficiency Level V and Energy Star 2.0, as well as being California Energy Commission (CeC) compliant. It features a wide universal input voltage range of 90 to 264 Vac and is also capable of operating from a 127 to 300 Vdc input. The NPS64-M has a maximum input power requirement of less than 74 W, and a no-load power consumption of less than 300 mW.


Emerson Network Power’s NPS64-M power supply provides tight regulation, maintaining the output voltage to within plus or minus two percent for all standard line and load conditions, and features remote sense capabilities to compensate for a 0.5 V drop in the output cables. The power supply is comprehensively protected against fault conditions and has a high demonstrated mean time between failures (MTBF) of more than 550,000 hours.


The NPS64-M power supply features a built-in CISPR 22 Class B EMI filters, and meets the rigorous EN55022 Class B, FCC Class B and VDE0878PT3 Class B conducted noise standards. The power supply also complies with the EN61000-3-2 harmonic emissions standard. International safety approvals include TUV/UL/CSA/NEMKO/CB 60950/60601-1, CCC and, CE Mark (LVD).


Emerson Network Power Tel: 01384 842211 www.Emerson.com


Ultra Capacitor manufacturer Vinatech increases


capacitor density by 23% Vinatech recently launched the first range of 3 volt EDLC Capacitors covering from 3 Farad to 600 Farad and rated from -40c~+65c.


This seemingly small step increases capacitance density by 23% and 10% cell reduction for hi density applications including Solar and Wind energy harvesting, Electric and Hybrid Vehicles reducing costs, weight and size in this important.


This new technology overcomes existing limitations of temperature, now operating at 85c (wvdc2.5v).


Compared with batteries, super capacitors have longer life time, faster charging and discharge times with 1000 times longer cycle life than Batteries. Vinatech Hy-Cap products have one-tenth of the energy of batteries, but delivers over 10 times the power due to the ultra low ESR characteristics.


The Vinatech range is supported in the UK by BT2000.


Broadband Technology 2000 Ltd Tel: 01189 324600 www.bt2000.co.uk


N6700 Modular Power System Family Overview


Create a power system that fits your unique needs Whether you are an R&D engineer under time pressure or a manufacturing test engineer trying to cut costs or increase throughput, there is a N6700 mainframe and set of DC power modules that will suit your needs. The family includes 4 mainframes and over 30 DC power modules.


Choose from 4 mainframes: 3 for automated test systems, 1 for the R&D bench.


The N6700 MPS family has two categories of mainframes to choose from: low-profile and DC power analyzer. The environment that the power system will be used in will dictate the choice between the two categories of mainframes. If it is an automated-test environment (ATE), the low-profile mainframes should be used. If it is an R&D bench environment, the DC power analyzer mainframe should be used.


Each of the mainframes provides features that are tuned to the environment they are used in.


http://cp.literature.agilent.com/litweb/pdf/5990-9555EN.pdf


Agilent Technologies Ltd Tel: 0131 452 0200 www.home.agilent.com


LV8829 motor driver from ON Semiconductor


The LV8829 motor driver is designed to drive a 3 phase brushless motor in the range of 8 to 35 volts and at a current of 1.5 amps. Motor speed is controlled via a pulse width modulated signal typically from a Microcontroller or LSI controller. The I.C utilises synchronous rectification which yields far less heat than when compared with diode regeneration methods. The device also has a stop function which deploys the motor break and turns off the hall sensor currents thus placing the device in a low power sleep mode whilst still maintaining the onboard 5V regulator at typical power demand of around 700uA.


There is also a constraint protection circuit that can be enabled. This circuit shuts down the drive signals of the PWM if no feedback is obtained from the hall sensors within a given programmable time period.


Key features :


- 3 Phase Motor control 8V-35V, 1.5A. - PWM , Forward/reverse input. - Stop low power mode input.


- Voltage regulator, Oscillator. - Power on reset hold off. - Constraint protection circuit. - Current limiter. - Low voltage shut down. - Over temperature shutdown. - Very small package 24 pin VQFN.


M Dragon development kit.


There is a development board support called M-Dragon which provide a Windows user interface via USB to communicate with the LV8829 evaluation board and comes complete with a 3 phase motor in order to very easily evaluate a any given application for the device. The software provides control over the PWM percentage drive signal, Forward/reverse motion and shut down stop mode signals


ON Semiconductor UK Ltd Tel: 01753 626718 www.onsemi.com


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