Search Results - philippe+adell

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  1. Highly Reliable Intelligent Intermediate Bus Converter for Space Systems
    Background Conventional pulse-width modulation (PWM) control techniques such as voltage-mode DC-DC converters are susceptible to single event effects (SEE) of radiation in harsh environments due to their inherent analog nature. Digital controllers, on the other hand, are more immune to SEEs than their voltage-mode analog counterparts. Current-mode...
    Published: 2/13/2025
    Inventor(s): Philippe Adell, Bertan Bakkaloglu, Bhushan Vijay Talele, Shashank Alevoor, Rakshit Dambe Nayak
    Keywords(s): Materials and Electronics
    Category(s): Physical Science, Manufacturing/Construction/Mechanical, Wireless & Networking, Applied Technologies
  2. Predicting Radiation Effects and Total Ionizing Dose in Bipolar Junction Transistor Circuits
    Background Bipolar transistors are used extensively for analog circuits utilized in spaceborne applications. However, this region of space, including the higher reaches of Earth's atmosphere, is populated by many high-energy particles that can damage the bipolar transistors. In such environments, radiation induces a large increase in bipolar base...
    Published: 2/13/2025
    Inventor(s): Hugh Barnaby, Philippe Adell, Blayne Tolleson
    Keywords(s): Materials and Electronics
    Category(s): Physical Science, Computing & Information Technology, Environmental, Semiconductor Devices
  3. A Programmable Digitally Controlled Point-of-Load DC-DC Buck Converter Suitable for Space Applications
    Buck converters are essential to modern electronics as they can maintain an output voltage at a desired range. Two of the main methods to accomplish this are hysteretic control and pulse width modulation (PWM). Hysteretic controllers continually monitor the output voltage and adjust it if it is too high or too low, but have bad frequency control. On...
    Published: 2/13/2025
    Inventor(s): Bertan Bakkaloglu, Ming Sun, Philippe Adell
    Keywords(s): Fuel Cells, Energy, Materials and Electronics
    Category(s): Computing & Information Technology, Physical Science

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