C1 Project: System Identification Diagnosis and Built-In-Self-Test of High Switching Rate DC-DC Converters

Project: Research project

Project Details

Description

C1 Project: System Identification Diagnosis and Built-In-Self-Test of High Switching Rate DC-DC Converters C1 Project Acct SM - System Identification, Diagnosis, and Built-In-Self-Test of High Switching Rate DC-DC Converters Summary/Research Scope: High efficiency power converters are an essential part of space communication modules. Their applications range from RF transceivers, to RF PAs, and analog baseband strip. The DCDC converters are used across a large set of environmental and load conditions, and their performance degrade with aging and environmental effects. As an example, LCR of the DC-DC converters degrade over time and usage, as well as the MOSFETS making up the power train age and will not give optimized output with a classical controller. High speed converters have smaller component sizing, faster settling time, but the their converter loop dynamics are sensitive to external LC and R variations. Converter performance is also affected by manufacturing tolerances and parasitics. In this project, several techniques for on-line system identification, self-test and diagnosis of DCDC converters will be developed. Using white noise based stimulus, the system will be diagnosed while operating in a closed loop configuration, without the need for open-loop characterization. Successful outcome of this will enable logging of diagnostics of the converter and/or self-tuning of the controller to overcome the aging effects in harsh environments.
StatusFinished
Effective start/end date9/1/147/1/17

Funding

  • INDUSTRY: Various Consortium Members: $70,933.00

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