Circuit Cellar Ink
Articles by David Ludington

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David Ludington is a retired electrical engineer with experience in low-noise analog design and infrared system design. He earned a BSEE at Michigan State University and an MSEE at Syracuse University.

• #242 September 2010, p. 26, Precision Temperature Control Circuitry
• #255 October 2011, p. 36, High-Accuracy Voltage Reference Using PWM Part 1: Pulse-Width Modulation Theory
• #256 November 2011, p. 18, High-Accuracy Voltage Reference Using PWM Part 2: Hardware Design