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William Grill

William Grill is a senior electrcal engineer with Honeywell BRGA, Olathe, Kansas. He received a BSEE from the University of Colorado, Boulder. Also, he has published over a dozen application design ideas and articles.


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Author Articles

  • Programmable Window Comparator Uses A Single Reference

    By William Grill , July 09, 2009

    Based on a Microchip 12F675 MCU, this programmable window comparator lets users dynamically select the window characteristic and tolerance. It's aimed at voltage-monitoring applications.

  • Controller Maps Auto's Electric Drive Voltage To Existing Thermal Fuel Gauge

    By William Grill , December 11, 2008

    While converting an older Volkswagen to electric power, we wanted to display the battery voltage on the existing fuel gauge. The gauge used an electromechanical regulator to resistively control the heating of a bi-metallic thermal strip. Th

  • Controller-Based One-Shot Creates Extended Delays While Saving Space

    By William Grill , October 26, 2006

    When I needed to create a simple tool to generate a long, event-triggered pulse, I started with a classic one-shot and a really large capacitor. This worked "pretty good," owing to the classic nature of the problem. There seemed to b

  • PWM-To-RS-232 Translator Boasts Over 11-Bit Accuracy

    By William Grill , June 22, 2006

    WILLIAM GRILL, Honeywell Aerospace-Olathe, Olathe, Kansas william.grill@honeywell.com Over the years, many sensor monitor designs would have benefited by being able to have their encoded pulse-width modulation (PWM) data forwarded to and post-proc

  • Handy Circuit Converts RS-232 To An 8-Bit Discrete Output

    By William Grill , June 23, 2005

    This simple serial RS-232-to-discrete-output application and driver, based on Texas Instruments' 74LV8153, requires only a minimum of parts. The single-wire, RS-232 bit-compatible 74LV8153 supports an internal clock, auto-baud function, and output registe