The Experts below are selected from a list of 138 Experts worldwide ranked by ideXlab platform

Takis Kasparis - One of the best experts on this subject based on the ideXlab platform.

  • DSP controlled low-voltage high-current fast-transient Voltage Regulator Module
    2002 IEEE International Conference on Acoustics Speech and Signal Processing, 2002
    Co-Authors: Jaber Abu-qahouq, Nattorn Pongratananukul, Issa Batarseh, Takis Kasparis
    Abstract:

    Future generation of microprocessors will require high performance Voltage Regulator Modules (VRMs) that produce tightly regulated low supply voltage with very small deviation window and able to respond very quickly to a large and continuous load transients at high output current while maintaining a high power density. On one hand, the current drawn from the VRM by the microprocessor is continuously changing since it depends at the current use of the microprocessor. On the other hand, High Frequency VRMs as any Power Electronics System is a complex combination of linear, nonlinear, and switching elements that is required to have fast dynamics. Moreover, this complex combination is also real-time system that needs to continuously and instantly monitor and respond to the load changes (the microprocessor). A high performance basic control loop is essential to follow up with such transients. Such controller design is usually complicated especially since it requires high knowledge of the converter and its behavior and accurate converter model that includes nonlinearities and parameters and components variations. DSP has many advantages over the analog circuits when it comes to applying high performance sophisticated control techniques such the simplicity in applying sophisticated control algorithms and modifying them via Software Revision, lower environmental and noise sensitivity, and less components count. In this paper, a DSP setup to be

  • ICASSP - DSP controlled low-voltage high-current fast-transient Voltage Regulator Module
    IEEE International Conference on Acoustics Speech and Signal Processing, 2002
    Co-Authors: Jaber Abu-qahouq, Nattorn Pongratananukul, Issa Batarseh, Takis Kasparis
    Abstract:

    Future generation of microprocessors will require high performance Voltage Regulator Modules (VRMs) that produce tightly regulated low supply voltage with very small deviation window and able to respond very quickly to a large and continuous load transients at high output current while maintaining a high power density. On one hand, the current drawn from the VRM by the microprocessor is continuously changing since it depends at the current use of the microprocessor. On the other hand, High Frequency VRMs as any Power Electronics System is a complex combination of linear, nonlinear, and switching elements that is required to have fast dynamics. Moreover, this complex combination is also real-time system that needs to continuously and instantly monitor and respond to the load changes (the microprocessor). A high performance basic control loop is essential to follow up with such transients. Such controller design is usually complicated especially since it requires high knowledge of the converter and its behavior and accurate converter model that includes nonlinearities and parameters and components variations. DSP has many advantages over the analog circuits when it comes to applying high performance sophisticated control techniques such the simplicity in applying sophisticated control algorithms and modifying them via Software Revision, lower environmental and noise sensitivity, and less components count. In this paper, a DSP setup to be

Jaber Abu-qahouq - One of the best experts on this subject based on the ideXlab platform.

  • DSP controlled low-voltage high-current fast-transient Voltage Regulator Module
    2002 IEEE International Conference on Acoustics Speech and Signal Processing, 2002
    Co-Authors: Jaber Abu-qahouq, Nattorn Pongratananukul, Issa Batarseh, Takis Kasparis
    Abstract:

    Future generation of microprocessors will require high performance Voltage Regulator Modules (VRMs) that produce tightly regulated low supply voltage with very small deviation window and able to respond very quickly to a large and continuous load transients at high output current while maintaining a high power density. On one hand, the current drawn from the VRM by the microprocessor is continuously changing since it depends at the current use of the microprocessor. On the other hand, High Frequency VRMs as any Power Electronics System is a complex combination of linear, nonlinear, and switching elements that is required to have fast dynamics. Moreover, this complex combination is also real-time system that needs to continuously and instantly monitor and respond to the load changes (the microprocessor). A high performance basic control loop is essential to follow up with such transients. Such controller design is usually complicated especially since it requires high knowledge of the converter and its behavior and accurate converter model that includes nonlinearities and parameters and components variations. DSP has many advantages over the analog circuits when it comes to applying high performance sophisticated control techniques such the simplicity in applying sophisticated control algorithms and modifying them via Software Revision, lower environmental and noise sensitivity, and less components count. In this paper, a DSP setup to be

  • ICASSP - DSP controlled low-voltage high-current fast-transient Voltage Regulator Module
    IEEE International Conference on Acoustics Speech and Signal Processing, 2002
    Co-Authors: Jaber Abu-qahouq, Nattorn Pongratananukul, Issa Batarseh, Takis Kasparis
    Abstract:

    Future generation of microprocessors will require high performance Voltage Regulator Modules (VRMs) that produce tightly regulated low supply voltage with very small deviation window and able to respond very quickly to a large and continuous load transients at high output current while maintaining a high power density. On one hand, the current drawn from the VRM by the microprocessor is continuously changing since it depends at the current use of the microprocessor. On the other hand, High Frequency VRMs as any Power Electronics System is a complex combination of linear, nonlinear, and switching elements that is required to have fast dynamics. Moreover, this complex combination is also real-time system that needs to continuously and instantly monitor and respond to the load changes (the microprocessor). A high performance basic control loop is essential to follow up with such transients. Such controller design is usually complicated especially since it requires high knowledge of the converter and its behavior and accurate converter model that includes nonlinearities and parameters and components variations. DSP has many advantages over the analog circuits when it comes to applying high performance sophisticated control techniques such the simplicity in applying sophisticated control algorithms and modifying them via Software Revision, lower environmental and noise sensitivity, and less components count. In this paper, a DSP setup to be

Issa Batarseh - One of the best experts on this subject based on the ideXlab platform.

  • DSP controlled low-voltage high-current fast-transient Voltage Regulator Module
    2002 IEEE International Conference on Acoustics Speech and Signal Processing, 2002
    Co-Authors: Jaber Abu-qahouq, Nattorn Pongratananukul, Issa Batarseh, Takis Kasparis
    Abstract:

    Future generation of microprocessors will require high performance Voltage Regulator Modules (VRMs) that produce tightly regulated low supply voltage with very small deviation window and able to respond very quickly to a large and continuous load transients at high output current while maintaining a high power density. On one hand, the current drawn from the VRM by the microprocessor is continuously changing since it depends at the current use of the microprocessor. On the other hand, High Frequency VRMs as any Power Electronics System is a complex combination of linear, nonlinear, and switching elements that is required to have fast dynamics. Moreover, this complex combination is also real-time system that needs to continuously and instantly monitor and respond to the load changes (the microprocessor). A high performance basic control loop is essential to follow up with such transients. Such controller design is usually complicated especially since it requires high knowledge of the converter and its behavior and accurate converter model that includes nonlinearities and parameters and components variations. DSP has many advantages over the analog circuits when it comes to applying high performance sophisticated control techniques such the simplicity in applying sophisticated control algorithms and modifying them via Software Revision, lower environmental and noise sensitivity, and less components count. In this paper, a DSP setup to be

  • ICASSP - DSP controlled low-voltage high-current fast-transient Voltage Regulator Module
    IEEE International Conference on Acoustics Speech and Signal Processing, 2002
    Co-Authors: Jaber Abu-qahouq, Nattorn Pongratananukul, Issa Batarseh, Takis Kasparis
    Abstract:

    Future generation of microprocessors will require high performance Voltage Regulator Modules (VRMs) that produce tightly regulated low supply voltage with very small deviation window and able to respond very quickly to a large and continuous load transients at high output current while maintaining a high power density. On one hand, the current drawn from the VRM by the microprocessor is continuously changing since it depends at the current use of the microprocessor. On the other hand, High Frequency VRMs as any Power Electronics System is a complex combination of linear, nonlinear, and switching elements that is required to have fast dynamics. Moreover, this complex combination is also real-time system that needs to continuously and instantly monitor and respond to the load changes (the microprocessor). A high performance basic control loop is essential to follow up with such transients. Such controller design is usually complicated especially since it requires high knowledge of the converter and its behavior and accurate converter model that includes nonlinearities and parameters and components variations. DSP has many advantages over the analog circuits when it comes to applying high performance sophisticated control techniques such the simplicity in applying sophisticated control algorithms and modifying them via Software Revision, lower environmental and noise sensitivity, and less components count. In this paper, a DSP setup to be

Nattorn Pongratananukul - One of the best experts on this subject based on the ideXlab platform.

  • DSP controlled low-voltage high-current fast-transient Voltage Regulator Module
    2002 IEEE International Conference on Acoustics Speech and Signal Processing, 2002
    Co-Authors: Jaber Abu-qahouq, Nattorn Pongratananukul, Issa Batarseh, Takis Kasparis
    Abstract:

    Future generation of microprocessors will require high performance Voltage Regulator Modules (VRMs) that produce tightly regulated low supply voltage with very small deviation window and able to respond very quickly to a large and continuous load transients at high output current while maintaining a high power density. On one hand, the current drawn from the VRM by the microprocessor is continuously changing since it depends at the current use of the microprocessor. On the other hand, High Frequency VRMs as any Power Electronics System is a complex combination of linear, nonlinear, and switching elements that is required to have fast dynamics. Moreover, this complex combination is also real-time system that needs to continuously and instantly monitor and respond to the load changes (the microprocessor). A high performance basic control loop is essential to follow up with such transients. Such controller design is usually complicated especially since it requires high knowledge of the converter and its behavior and accurate converter model that includes nonlinearities and parameters and components variations. DSP has many advantages over the analog circuits when it comes to applying high performance sophisticated control techniques such the simplicity in applying sophisticated control algorithms and modifying them via Software Revision, lower environmental and noise sensitivity, and less components count. In this paper, a DSP setup to be

  • ICASSP - DSP controlled low-voltage high-current fast-transient Voltage Regulator Module
    IEEE International Conference on Acoustics Speech and Signal Processing, 2002
    Co-Authors: Jaber Abu-qahouq, Nattorn Pongratananukul, Issa Batarseh, Takis Kasparis
    Abstract:

    Future generation of microprocessors will require high performance Voltage Regulator Modules (VRMs) that produce tightly regulated low supply voltage with very small deviation window and able to respond very quickly to a large and continuous load transients at high output current while maintaining a high power density. On one hand, the current drawn from the VRM by the microprocessor is continuously changing since it depends at the current use of the microprocessor. On the other hand, High Frequency VRMs as any Power Electronics System is a complex combination of linear, nonlinear, and switching elements that is required to have fast dynamics. Moreover, this complex combination is also real-time system that needs to continuously and instantly monitor and respond to the load changes (the microprocessor). A high performance basic control loop is essential to follow up with such transients. Such controller design is usually complicated especially since it requires high knowledge of the converter and its behavior and accurate converter model that includes nonlinearities and parameters and components variations. DSP has many advantages over the analog circuits when it comes to applying high performance sophisticated control techniques such the simplicity in applying sophisticated control algorithms and modifying them via Software Revision, lower environmental and noise sensitivity, and less components count. In this paper, a DSP setup to be

K. Takata - One of the best experts on this subject based on the ideXlab platform.

  • A decentralised P2P Revision management system using a proactive mechanism
    2005
    Co-Authors: K. Takata, Jianhua Ma
    Abstract:

    This paper presents a prototype and evaluations of the GRAM, a peer to peer (P2P) and a Revision management system based on a proactive mechanism. GRAM performs Revision collision prevention management and Software source code synchronisation in a potential overlay network of peers connected via the internet or a LAN/WAN. This system provides four special features in comparison with other version management systems: higher system reliability and robustness, effective Revision collision prevention using proactive agents, context aware environment for team Software Revision, and a unified XML format for configurations and history files as well as for system and agent exchange their control messages. Each peer of the GRAM system has a unique identifier provided by the JXTA framework, and holds two spaces: a shared space synchronised other peers' ones, and a workspace for a user's ordinary editing. Experimental results obtained with a prototype implementation on an enumerated network confirm GRAM's efficiency. By using GRAM, version managements of various Software development projects can be comfortably conducted.

  • GRAM - a P2P system of group Revision assistance management
    18th International Conference on Advanced Information Networking and Applications 2004. AINA 2004., 2004
    Co-Authors: K. Takata
    Abstract:

    This paper focuses on general design and prototype implementation of a peer-to-peer (P2P) and a proactive mechanism based version management system called GRAM (group Revision assistance management). It provides four special features in comparison with other version management systems: higher system reliability and robustness, effective Revision collision prevention using proactive agents, context-aware environment for team Software Revision, a unified XML format for configuration and history files as well as system and agent exchange messages. Every peer holds a shared space synchronized with other peers' ones, and a workspace for a user's ordinary editing. GRAM is implemented using the JXTA technology that consists of the virtual JXTA network and basic peer group services. The system GUI and basic functions in the current prototype are also presented to show its basic usages. By using GRAM, version management of various Software development projects can be comfortably conducted.

  • AINA (1) - GRAM - a P2P system of group Revision assistance management
    18th International Conference on Advanced Information Networking and Applications 2004. AINA 2004., 2004
    Co-Authors: K. Takata, Jianhua Ma
    Abstract:

    This paper focuses on general design and prototype implementation of a peer-to-peer (P2P) and a proactive mechanism based version management system called GRAM (group Revision assistance management). It provides four special features in comparison with other version management systems: higher system reliability and robustness, effective Revision collision prevention using proactive agents, context-aware environment for team Software Revision, a unified XML format for configuration and history files as well as system and agent exchange messages. Every peer holds a shared space synchronized with other peers' ones, and a workspace for a user's ordinary editing. GRAM is implemented using the JXTA technology that consists of the virtual JXTA network and basic peer group services. The system GUI and basic functions in the current prototype are also presented to show its basic usages. By using GRAM, version management of various Software development projects can be comfortably conducted.

  • Proactive control of group Revision assistance management using P2P technology
    IEEE International Symposium on Communications and Information Technology 2004. ISCIT 2004., 2004
    Co-Authors: K. Takata
    Abstract:

    This paper describes the prototype and evaluations of the GRAM (group Revision assistance management), a peer-to-peer (P2P) and a proactive mechanism based Revision management system. GRAM enables the Software developer to exercise proactive version control of a development project, thus preventing serious problems from being caused by other systems. GRAM performs Revision collision prevention and Software source code synchronization in a potential overlay network of peers connected via the Internet/LAN/WAN. This system provides four special features in comparison with other version management systems: (1) higher system reliability and robustness; (2) effective Revision collision prevention using proactive agents; (3) context-aware environment for team Software Revision; and (4) unified XML format for configurations and history files as well as system and agent exchange messages. Each peer of GRAM system has a unique identifier using the JXTA framework, and holds two spaces: a shared space synchronized with other peers and a workspace for the user's ordinary editing. Experimental results obtained with a prototype implementation on an enumerated network confirm GRAM's efficiency.