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Jim Christensen

Jim Christensen is a strategic application engineer with Maxim Integrated Products Inc., Sunnyvale, Calif. He holds a BSEE and an MSEE from the University of Texas at El Paso.


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Author Articles

  • Simple Battery Monitor Works With Higher Battery Voltages

    By Jim Christensen, November 07, 2008

    Battery-operated equipment often requires a low-voltage monitor to warn the user when the battery voltage is too low or to perform other functions, such as power-source switching or device shutdown. Many specialized ICs are available to

  • Adapt DC Voltage To Perform PWM DImming Of High-Brightness LEDs

    By Jim Christensen, June 26, 2008

    High-brightness LEDs (HBLEDs) are making inroads into more traditional lighting applications that include a dc distribution system (for example, 24-V MR-16 track lights). HBLEDs are more efficient, and they have a potentially longer l

  • Speed Control Handles Isolated –48-V Fans

    By Jim Christensen, August 05, 2002

    Chips are available to monitor and control ventilation fans. But less common are fan controllers for telecom applications. Such fans must operate in electrically isolated environments with a supply voltage in the 36- to 72-V range. For example, the...