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  • Single-Controllable-Switch-Based Switched Reluctance Motor Drive for Low Cost, Variable-Speed Applications
    ...features, the new drive system offers a viable alternative to conventional fixed-speed brush-commutator motors and variable-speed permanent magnet brushless dc motor drives in many high volume applications in the low... ...categories such as fans, blowers , hand tools, and small...
  • Single-controllable-switch-based switched reluctance motor drive for low-cost variable- speed applications
    ...features, the new drive system offers a viable alternative for conventional fixed speed brush-commutator motors and variable- speed permanent magnet brushless dc motor drives in many high volume applications in the low... ...categories such as fans, blowers , hand tools and home...
  • A 300 Hz TEA CO2 Laser
    A new CO2 laser design for application in the plastic industry was reported in [11]; it consists of three parts: metal chamber 1, modulator 2, and 15 kV DC high -voltage power supply 3. The metal chamber, of volume 160 liters, has three sections: on the right-hand side of the chamber there is a blower with 4500 rpm that produces a gas flow with a 13 m/s gas velocity between the electrodes.
  • A Rolling Process Applied on the Manufacturing of Precision Cold Formed Metal Motor Housings
    This process guarantees a high precision on the inner diameter and can be applied on small and large production volumes . ...the external case of many kind of electrical motor (fig. 1): a wide range of them, mostly used in the Automotive and in the Industrial business, are 12V DC -AC motors used for... ...applications as fans or blowers , starting or moving devices...
  • Integration of Alternative Sources of Energy
    Ac output power (kW) Ac output voltage (V) Dc voltage (V) Temperature of the membrane ( C) Normal... Most of the head of series consist of a low-pressure, high - volume air blower to supply the oxidizer.
  • Integrated auxiliary drives for fuel cell vehicles
    The dc -dc converters dynamic response, allows fast motor drive response while regulating the common dc bus... The integrated motor drive unit was designed for the fuel cell cathode air blower and the water pump for United Technologies 120kW self contained... ...the same auxiliary motors for blower and pump with much higher efficiency and lower cost, weight and volume .
  • ATF CO{sub 2} laser system upgrade to terawatt peak power
    Also for presently envisioned scientific application of the ATF COZ laser system a high repetition rateis not... Reduction ofthe repetition rate to 3-6 ppm helps to reducethe required power of HV DC suppliesto 1kW and to use compact and relatively inexpensive blower , catalytic converter, etc. With such low repetition rate and the discharge volume -8 Z, gas exchange rateat the level of...
  • A New Anisotropic Bonded NdFeB Permanent Magnet and Its Application to a Small DC Motor
    DIRECT current ( dc ) motors employing sintered ferrite magnets (PMs) have, so far, been widely used in au- tomotive applications such as the seat, blower , and sunroof. These days, PM motors are required to have higher efficiency for energy saving, better performance with smaller volume and lighter weight, and even higher power density.
  • Modular Interconnect Packaging for Scalable Systems (MIPSS) for ATE - IEEE-P1693 standard
    Features: - ruggedized laminated-conductive enclosure - four side interlocking engagement mechanism - four side interconnect blindmate connectors - high volume blower /pressurized cooling - metered slot air flow with temperature monitoring and fan control - AC/ DC Conversion to 48VDC Bus .
  • Cogging torque analysis of interior-type permanent-magnet brushless DC motor used in washers
    In recent years, permanent-magnet brushless (BL) DC motors have wide usage areas such as home appliance: washers, dryers; in automotive: fans, pumps and blowers etc. Some advantages of this machine can be listed as their high performance, high relation of torque/ volume , capability at high speed applications, electronic driven commutation.
  • Coaxial CO2 lasers
    The mass flow rate is given by the volume rate of the blowers and by the gas density and hence the operating pressure. Since DC discharges are operated at pressures below 100 hPa large volume rates are required for high laser powers.
  • Exact thermal design method for high output power density converter under real circuit operation condition
    V_LCfilter and V_Cdc are the volume of the passive filter and the DC capacitor respectively, and V_FAN is the volume of blower for air cooling. Fig.16 shows the inverter which has the highest OPD can be fabricated by about 200kHz switching...
  • Foreword
    Some of them are: VAR compensators, active power filters, switch mode rectifiers, space and uninterruptible power supplies, industrial fans, blowers , compressors, steel rolling mills,paper and textile... ...electric vehicles, electric and diesel electric traction, high voltage dc transmission, induction heating, electrolysis... ...to improvement of efficiency and performance, reliability, and power qual- ity, reduction in volume and weight, and...
  • An Application of the Roll-Forming Process on the Production of a Waterproof Metal Motor Housings
    This process guarantees a high precision on the inner diameter and can be applied on small and large production volumes . ...the external case of many kind of electrical motor (Fig. 1): a wide range of them, mostly used in the Automotive and in the Industrial business, are 12V DC -AC motors used for... ...applications as fans or blowers , starting or moving devices...
  • Fuel cell power systems for remote applications. Phase 1 final report and business plan
    The fuel cell subsystems include a 1ow pressure, high volume air blower to provide the oxidant feed, and a water circulation syste/ for cooling the stack and humidifying the incoming alr and reformate streams. The electrical output of the fuel cell will be conditioned by a DC /DC voltage converter to...