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www.us-tech.com


February, 2019


CDE Launches DC Link Capacitor Modules


Liberty, SC — Cornell Dubilier Electronics (CDE) has launched a new series of DC link polypropylene film capacitor modules aimed at high-power inverters. The MDL series offers capacitance values rang- ing from 600 to 4,200 µF, with applied voltages of 900 to 1,300 VDC. Designed as an alter-


native to banks of cylindri- cal bus-mounted capaci- tors, these modules have high energy density and simplify bus connections by reducing the number of terminations. By using a single DC


Link capacitor in a com- pact rectangular package, smal ler inverter topologies are possible. The use of one capaci-


tor, as opposed to several parallel- banked capacitors, typically results in enhanced system reliability with lower assembly costs. The MDL series also exhibits


long life, meeting a 5,000-hour life test at rated voltage, with a core tem- perature of 185°F (85°C). This trans- lates to a life of 200,000 hours when operated at 140°F (60°C) ambient at full rated voltage and ripple current. The MDL series is based on


CDE’s proven DC Link film technolo- gy, utilizing low-loss, high-grade polypropylene dielectric. With cur-


See at ATX / MD&M West, Booth 5395


DC link polypropylene film capacitor modules.


and utility-scale wind, solar and fuel cell systems. Other applications include UPS, switching power sup- plies and large motor drives. The series consists of 12 values


in four case sizes, is RoHS-compliant, and meets IEC 61071 and UL94V-0. Each unit passes through CDE’s


burn-in testing. Contact: Cornell Dubilier


Electronics, Inc., 140 Technology


Place, Liberty, SC 29657 % 508-996-8561 E-mail: mrapoza@cde.com Web: www.cde.com


H2W Releases High-Force Brushless Linear Motor


Santa Clarita, CA — H2W has devel- oped a compact, high-force, brush- less, linear motor (BLSM-1F) that can generate 300 lbf (1,334 N) at a 10 percent duty cycle and 100 lbf (444 N) at a 100 per- cent duty cycle, as well as when used with a match- ing magnet track (BLSTF- SX). The mass of the coil assembly is 19 lb (8.6 kg), which provides a force to moving mass ratio of 15:8. The motor can be


driven using either a trape- zoidal or digital, standard, three-phase, brushless am - plifier. The brushless lin- ear motor coil measures 6.5 x 7.5 x 1.5 in. (16.5 x 19 x 3.8 cm). This brushless linear


The laminated, three-phase,


wound coil assembly is used in con- junction with a linear magnet track to produce a controlled linear force. A


rent ratings up to 400A rms these modules are well-suited for high- power inverters used in commercial


 RoHS


motor is designed for appli- cations that require a wide speed range and a relatively high force. This motor is encapsulated using high- temperature, 350°F (177°C) thermal- ly conductive potting compound, which protects the components and seals it from dust and moisture. The three-phase, brushless, lin-


ear motors, also known as an AC lin- ear servo motors, are direct drive motors suitable for long-stroke, closed-loop-servo, linear motion applications. They can be used at speeds up to 20 ft/s (6.1 m/s). They are capable of very precise position, velocity and acceleration control when coupled with a linear encoder for position feedback.


High-force, iron-core brushless linear motor.


customer-supplied bearing system is required to maintain the 0.06 in. (1.5 mm) air gap between the coil assem- bly and the magnet track. There is a relatively large


attractive force between the motor coil and the magnet assembly. The magnet track consists of rare-earth neodymium magnets and the required overall length is equal to the coil assembly length plus the


stroke length. Contact: H2W Technologies,


Inc., 26380 Ferry Court, Santa Clarita, CA 91350 % 888-702-0540 fax: 661-251-2067 E-mail: info@h2wtech.com Web: www.h2wtech.com


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