University of Michigan

Xiaofan Cui

Al-Thaddeus Avestruz

Jason Benjamin Siegel

A power conversion device may perform model-referenced power processing for multiple diverse power nodes. The power conversion device includes interconnects that couple power nodes connection ports to power converters The power converters include a dense tier of power converters sized to correct from varied power flow levels of a defined portion of a population of power nodes to interim power flows in accord with center values for that portion of power nodes. The center values are provided by a model of the power node diversity. The power converters also include a sparse tier. The sparse tier performs power processing to convert from the interim power flows generated by the dense tier to a uniform model-corrected target flow.

Power processing and energy storage

A device for power conversion includes an inductor, a switch having a switching cycle to control current flow through the inductor, a sensor coupled to the inductor to generate a signal representative of the current flow through the inductor, and a controller configured to generate a switch control signal for the switch to implement cycle-by-cycle control of the switching cycle for current-mode control of an output driven by the current flow through the inductor, the controller being coupled to the sensor such that the cycle-by-cycle control is based on the signal representative of the current flow through the inductor. The inductor is configured to exhibit a decrease in inductance with an increase in the current flow through the inductor.

Cycle-by-cycle digital control of DC-DC converters

A power conversion device may perform model-referenced power processing for multiple heterogenous power nodes. The power conversion device includes interconnects that couple power nodes to power converters. The power converters may include a sparse set in which the number of power converters is dependent on the model of the power source heterogeneity. The sparse set performs power processing on the power from the power node to facilitate provision of a target power at a port of the power conversion device.

A system includes control circuitry configured to control an output signal. The control circuitry and/or various other sources of undesirable signal components may corrupt the control signal used by the control circuitry to correct the output signal. Conditioning circuitry may effect current-domain repair on the control circuitry by providing feedback-based conditioning actuation, including comparator overdrive, to the control circuitry.

Growing community of inventors

Ann Arbor, MI, United States of America

Xiaofan Cui