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  • Electromagnets Reject Residual Magnetism
    Electromagnets are designed with ejector pins to enable them to overcome the problems of residual magnetism occurring when power to the device is switched off. A new range of electromagnets from Geeplus have been designed with ejector pins to enable them to overcome the problems of residual
  • NEC Solid State Relays for ATE Applications
    Compares SSRs to Electro-Mechanical and Reed relays and examines the use of SSRs in ATE (Automated Test Equipment)applications. ./f1f47b90-6767-4258-a6c2-7982d180184a ApplicAtion note. AN3008. Renesas Solid State Relays for ATE Applications. Authors: Van N. Tran. CEL Staff Application Engineer
  • Slimmed-Down Magnetic-Bearing Systems Fit More Rotating Machinery Applications
    rolling-element, plain, or thrust bearings, odds are that power sources, control electronics, and magnetic fields don't enter the picture. But active magnetic bearings are replacing oil-lubricated bearings in many applications. Magnetic bearings support rotating machinery without contaminating
  • AC Induction Motor Fundamentals
    and the characteristics of these motors. This application note discusses the basics of an AC induction motor; the different types, their characteristics, the selection criteria for different applications and basic control techniques. AN887, AC Induction Motor Fundamentals AN887. AC Induction Motor
  • High Temperature Hybrid Radial Magnetic Bearing Systems Capable of Operating up to 538°C (1000°F)
    A novel high temperature hybrid radial magnetic bearing capable of operating at 538°C (1000°F)was developed. High temperature permanent magnets are used to carry the majority of the staticrotor weight, instead of a magnetic bearing coil or electromagnets, in the newly designed hybridmagnetic
  • Looking Back
    10 YEARS AGO -- SEPTEMBE R 24, 1998 New chips open doors for smart cards: Four high-capacity memory chips from will let developers combine several applications on a single smart card at a cost comparable to today's single-application cards. The chips, with up to 32k of EEPROM, target card-payment
  • The Switch to Switched Reluctance
    (SR) motors were developed in the 1800s but, apart from a few embedded-drive applications, they have not been widely applied. Their optimum operation depends on relatively sophisticated switching control, something not economical until the advent of compact but powerful solid-state power devices
  • Mechanical Switches
    Mechanical switches can be divided into two basic types. The first, commercial and appliance switches, are used in fairly clean environments such as offices or homes. They are not sealed and are generally used for light, low-current applications. The second type, industrial switches, actuate

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