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  • Capacitor Engineering Bulletin: ESR Characterizations
    . General Atomics Energy Products (GAEP) has attempted to avoid incorrect application of ESR information by not listing an ESR value in its standard product sales literature. Each customer. who is concerned about this parameter is asked how the ESR value is to be used in his or her calculations
  • Using AC PWM Drives on Non-Standard Voltages and Frequencies
    nominal value. Applications requiring voltage reduction beyond this range have special motor and drive considerations. Input frequency can be either 50 or 60 Hz. Input frequency is not related to how much output frequency can be attained, since AC is first converted to DC and then back to AC again. Within
  • Characterization of an RLC Low pass Filter
    requirement use LC filters to block low frequency power surges to the midrange and high frequency speaker sections. In many cases, the output filter of a switching power supply must use a custom wound inductor with a standard capacitor for optimal design and efficiency. Because of this, the filter
  • Application Note: Cell Phone Camera Flash Solution Using the AAT3110-4.5 Charge Pump
    Cell phone cameras are now prevalent in the market place. These cameras are capable of taking still pictures and some are able to record short segments of video in "movie-mode." One limitation to these phone cameras is the lack of proper lighting sources for nighttime photos and video. A standard
  • DC/DC Converters With Linear Regulators
    is required, the ripple of a switching regulator can be reduced by a linear regulator. The output ripple of a standard DC/DC converter is between 0.5% and 1% of its nominal output voltage. For applications that require a lower output ripple, linear regulators can be used to reduce a converter's output
  • Medical Device Link . Stopping Noise Before It Starts Common-mode currents on printed wiring boards can be controlled through simple design concepts.
    marking, and the international standard EN 60601 covers both immunity and suppression. Emissions requirements are detailed in EN 55022. Perhaps the most difficult aspect of emission control concerns common-mode (one-way) currents generated on printed wiring boards (PWBs). Once generated
  • Society for Information Display New Products August 2003
    is a highly optimized and efficient mechanical design. The interfacing requirements are entirely standard, so OEMs can employ the module within their respective mobile phone applications in a "plug & play " fashion. The efficient architecture and design of the embedded dc/dc converter is based on a previous
  • Sensors take the heat
    typically see temperatures that vary from -40 to 180 C. The high temperatures of these extreme environments can induce myriad failures in electronic systems that rely on organic printed-circuit-board (PCB) material. Standard silicon (Si) semiconductor devices break down as temperature climbs because

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