Dell Products Inc.

National Taiwan University

Yu-Hung Lai

Tsai-Fu Hung

Po-Yun Shih

Chi-Kuang Sun

Shih-Chieh Wang

Feng-Yu Wu

Kuang-Hao Chou

Hung-Hsun Tsai

Yi-che Hsu

Chieh-Feng Chang

Szu-Yu Lee

Methods and systems for powering components of a data processing system that may be used to provide computer implemented services are disclosed. The disclosed management method and systems may improve the likelihood of data processing systems providing desired computer implemented services by improving the likelihood that desired power is provided by power supplies. To improve the likelihood of power supplies providing desired power, the power supplies may proactively take into account the type of power being supplied to the power supplies. The power supplies may modify their operation based on the type of input power being supplied to them so that conditioned power may be provided even when changes to the power supplied to the power supplies occur.

System and method for power supply input power management

Methods and systems for thermal management of components of a data processing system that may be used to provide computer implemented services are disclosed. The disclosed thermal management method and systems may improve the likelihood of data processing systems providing desired computer implemented services by improving the likelihood that desired power is provided by power supplies. To improve the likelihood of power supplies providing desired power, the power supplies may proactively take into account the thermal environment and/or thermal states of components of the power supply.

System and method for power supply thermal management based on thermal environment and thermal states of components of power supplies

Systems and methods for reducing the line frequency ripple in a resonant converter are described. In some embodiments, a power supply includes a switching network; an LLC resonant tank coupled to the switching network; a rectifier coupled to the LLC resonant tank; and a control circuit coupled to the switching network and to the rectifier, where the control circuit is configured to modify an operating frequency of the switching network to reduce a line frequency ripple at an output of the rectifier.

Line frequency ripple reduction in a resonant converter

The present application discloses optical microscopy systems and related method that use modulation techniques and contrast agents to enable the systems to detect nonlinear photoacoustic signals with high spectrum sensitivity and frequency selectivity for imaging. A laser beam is amplitude modulated for pure sinusoidal modulation using either the loss modulation technique or the single light amplitude modulation technique. The sample used in the invention is an endogenous contrast agent by itself or is treated by at least one exogenous contrast agent to produce or enhance photoacoustic effect induced by multi-photon absorption. The modulated laser beam is focused via a focusing device onto a sample which absorbs multiple photons simultaneously and generates ultrasonic (acoustic) waves via nonlinear photoacoustic effect. The ultrasonic waves are received and transformed into electrical signals and the frequency signals within the electrical signals are detected and recorded to create images.

Optical microscopy systems based on photoacoustic imaging

In one embodiment a method of extending power supply hold-up time by controlling a transformer turn ratio may include an input capacitor receiving an input voltage of a transformer unit. A first control transistor may switch a first transformer winding to an on state in response to the input voltage being above a voltage threshold level. The first control transistor may switch the first transformer winding to an off state in response to the input voltage being below the voltage threshold level. A second control transistor may switch a second transformer winding to an on state in response to the input voltage being below the voltage threshold level, wherein the first transformer winding and the second transformer winding may include separate windings located on a same side of a magnetic core of the transformer unit. In an embodiment the transformer unit may include a power supply unit.

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Taipei, Taiwan

Yu-Hung Lai