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  • Implementing Temperature-Based Variable Fan Speed Control in NLX Power Supplies
    of the cooling fan(s) inside the NLX power supply. The NLX specification designates two interface fan control signals: 1. FanM signal is an output from the NLX-compliant power supply. This signal allows the host (typically a system management ASIC) to monitor fan RPM. FanM is an open-collector signal
  • Linear Voltage Fan Speed Control Using Microchip's TC64X Family
    are stand-alone,. PWM output fan speed controllers/monitors that oper-. ate with any standard two-wire BDC fan. They control. C1 + Duty. 50.2%. fan speed using a low frequency PWM, modulated by. a 1.25V to 2.65V typical input signal. This is usually. C2 Max. 2.8V. 3. provided by a thermistor or other low-cost
  • Using Your Vibration Condition Monitoring System To Monitor Auxiliary Equipment
    running at different speeds such as a motor and a pump or a motor and a fan. A PROTOR P4700 data acquisition unit can take in up to four separate ‘once per revolution’ speed or phase reference signals andeach 8-channel data acquisition card may be associated with any one of these speed signals
  • Medical Device Link . Embedded Computers Add Power at Bargain Prices Older technologies still have a place in medical devices, but the upcoming models of high-performance chips may well pay for themselves in speed and flexibility.
    , an embedded systems technician at EMJ Embedded Systems Tech (Apex, NC). "Sometimes a second-generation Pentium system, with its power-hungry chip set and immense fan or heat sink, is just not usable." The "old" chips 386 and 486 have an additional advantage in that they are proven technology
  • Medical Device Link . Technology news
    models with comparable wattage yet feature a much higher power-conversion efficiency. The MVLT family of components achieves an 85% or better efficiency rating compared with the 68 72% industry norm. The use of convection cooling in lieu of a cooling fan has enabled this enhanced performance
  • Medical Device Link .
    to Penta, and more than half have an active fan. Vents create safe havens where dust can settle, while the fans can send it swirling about, according to Penta. Fanless systems and adequately designed PC housings can reduce the proliferation of pathogens, says the company. Pesky Fans. Dust typically
  • Mini HOWTO: Getting Perfect Fonts on Mandrake 10.1
    by the slight irregularities in the default fonts used by KDE. Step 3: Get good fonts. The best font rendering in the world is no good without good fonts. As much as I'm a Linux fan, I have to take my hat off to Microsoft for their really good fonts. I don't mean the silly Windings font, I mean
  • Medical Device Link .
    in IEC D80, D90, D100, and D112 frame sizes, spanning a power range of 0.37 -4 kW. Motors with ratings up to 0.75 kW have totally enclosed, nonventilated housings, while those with higher outputs use totally enclosed, fan-cooled housings. Features designed to cope with hostile environmental

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