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Arthur E. Edang

Arthur E. Edang, assistant professor and R&D coordinator at Don Bosco Technical College, received a BS-ECE from Don Bosco and an MS-ECE from DeLa Salle University, Maila, the Philippines.


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Author Articles

  • Two Triggers Have Flexible Time Intervals And Pulse Widths

    By Nathaniel B. Caliwag, December 04, 2003

    Generating two independent pulse triggers separated by a certain time delay can be handy in half-bridge drivers and thyristor-commutated lamp flashers. Time delay is set to avoid overlapping of the power switches' ON states or to minimize the stress...

  • Independently Vary A Multivibrator's Duty Cycle And Frequency

    By Arthur E. Edang, October 28, 2002

    When testing the response of many pulse-width-modulated (PWM) systems, there's a need to independently vary a multivibrator's frequency and duty cycle. Such systems include dc motors, ultrasonic hydrophones, and piezo-ceramic transducers. The ...

  • Digitally Adjust Regulator's Output Using A JFET Interface

    By Arthur E. Edang, April 29, 2002

    Often, electronic systems are guaranteed to operate with any supply voltage, within a given VCC range. Testing these circuits requires a regulated voltage supply that can be automatically incremented, from a minimum to a certain maximum....

  • Inexpensive "Reflectometer" Locates An Open Circuit Along A Cable

    By Arthur E. Edang, January 22, 2001

    Faults such as opens, shorts, or mismatches can be precisely located along the length of a cable by using a time-domain reflectometer. This device launches a rectangular pulse toward the cable's end and waits for an echo signal. The time between the...