Steve Kendig is a senior hardware engineer with A2E Technologies, Columbia, Md. He earned a BSEE from the University of New Hampshire. Also, he holds two patents dealing with precision timing redundancy. Email address: info@a2eTechnologies.com
2 results found for Steve Kendig, displaying items 1 - 2
November 7, 2005[Ideas For Design] –50-V, 1-W Power Supply Harnesses Unused µC Pins
Why not take advantage of the micro-controller included in many systems these days? This design uses microcontroller feedback to produce a ?50-V, 1-W power supply (see the figure). It leverages an unused analog-to-digital converter (ADC) input and a pulse-width-modulation (PWM) output to close the loop on a basic inverting single-ended primary inductance converter (SEPIC) topology. Varying the duty cycle of the...
September 1, 2005[Ideas For Design] Micropower Power Supply Beats Off-The-Shelf Solutions
Designers of high-sensitivity, low-noise preamplifiers recognize the benefits of galvanic isolation to reduce noise. Besides the noise benefits of isolation, some preamps have further requirements, such as the ability to float at a large dc offset voltage. Accommodating this requirement with off-the-shelf solutions may result in high cost and the addition of large components. Designers can craft a high-isolation micropower dc-dc converter using a telecom transformer. The design...
