The Experts below are selected from a list of 321 Experts worldwide ranked by ideXlab platform

Ke-horng Chen - One of the best experts on this subject based on the ideXlab platform.

  • Time-Shift Current Balance Technique in Four-Phase Voltage Regulator Module with 90% Efficiency for Cloud Computing
    IEEE Transactions on Power Electronics, 2015
    Co-Authors: Yi-ping Su, Yu-ping Huang, Wei-chung Chen, Chun-yen Chen, Chia-lung Ni, Ke-horng Chen
    Abstract:

    Four Power stages for voltage regulator module (VRM) are adopted to provide high current driving capability and low output ripple in cloud computing. Thus, the time-shift current balance (TSCB) technique is proposed to achieve high performance Power supply for servers. In addition, the Power Request, which includes the number of active phases and voltage identification, is acknowledged by servers for high driving capability during high throughput and high efficiency during standby mode. Furthermore, to equally distribute the current in each phase, the proposed TSCB technique in either voltage-mode or peak current-mode control improves the current balance performance and solves the stability problem. In the scale-down clouding computing prototype, the efficiency can be kept higher than 90% over a wide load current range of 2 A. In addition, the performance and operating frequency of the servers in stable operation are not limited by the VRM with the TSCB technique.

  • 94% Performance improvement by time-shift control (TSC) technique in cloud computing voltage regulator module (VRM)
    2013 IEEE International Symposium on Circuits and Systems (ISCAS), 2013
    Co-Authors: Che-hao Meng, Yi-ping Su, Yu-ping Huang, Ke-horng Chen
    Abstract:

    The time-shift control (TSC) technique for voltage regulator module (VRM) is proposed to achieve high performance Power supply for servers in cloud computing. Four Power stages are adopted to provide high current driving capability and low output ripple. Besides, the Power Request, which includes the number of active phases and voltage identification (VID), is acknowledged by servers for high driving capability during high throughput and high efficiency during standby mode. Furthermore, to equally distribute the current in each phase, the proposed TSC technique improves the current balance performance and solves the stability problem. In the scale-down clouding computing prototype, the efficiency can be kept higher than 90% over a wide load current range of 2 A. Besides, the performance and operating frequency of the servers in stable operation are not limited by the VRM with the TSC.

  • ISCAS - 94% Performance improvement by time-shift control (TSC) technique in cloud computing voltage regulator module (VRM)
    2013 IEEE International Symposium on Circuits and Systems (ISCAS2013), 2013
    Co-Authors: Che-hao Meng, Yi-ping Su, Yu-ping Huang, Ke-horng Chen
    Abstract:

    The time-shift control (TSC) technique for voltage regulator module (VRM) is proposed to achieve high performance Power supply for servers in cloud computing. Four Power stages are adopted to provide high current driving capability and low output ripple. Besides, the Power Request, which includes the number of active phases and voltage identification (VID), is acknowledged by servers for high driving capability during high throughput and high efficiency during standby mode. Furthermore, to equally distribute the current in each phase, the proposed TSC technique improves the current balance performance and solves the stability problem. In the scale-down clouding computing prototype, the efficiency can be kept higher than 90% over a wide load current range of 2 A. Besides, the performance and operating frequency of the servers in stable operation are not limited by the VRM with the TSC.

  • Power tracking embedded buck boost converter with fast dynamic voltage scaling for the soc system
    IEEE Transactions on Power Electronics, 2012
    Co-Authors: Shaochang Huang, Shihwei Wang, Weichan Wu, Pingching Huang, Hsinhsin Ho, Ke-horng Chen
    Abstract:

    A Power-tracking embedded buck-boost converter with a fast dynamic voltage scaling (F-DVS) function is proposed to Power the system-on-a-chip (SoC) system. To meet the Power Request of the SoC for different operation functions, fast up/down-tracking is implemented to achieve the F-DVS function. Recycling energy is also derived to minimize Power dissipation during the down-tracking period. In addition, the peak current control and valley current control methods are utilized in the buck and boost operations, respectively, to minimize the effect of switching noise in high switching operation for compact solution. Moreover, the self-tuning pulse skipping mechanism extends the effective duty cycle to achieve voltage regulation and improves efficiency when the input voltage is close to that of the output. Through F-DVS, the tracking speed from 3 to 2 V and vice versa are 15 and 20 μs, respectively, with a high switching frequency of 5 MHz.

  • Power-Tracking Embedded Buck–Boost Converter With Fast Dynamic Voltage Scaling for the SoC System
    IEEE Transactions on Power Electronics, 2012
    Co-Authors: Shaochang Huang, Shihwei Wang, Weichan Wu, Pingching Huang, Hsinhsin Ho, Ke-horng Chen
    Abstract:

    A Power-tracking embedded buck-boost converter with a fast dynamic voltage scaling (F-DVS) function is proposed to Power the system-on-a-chip (SoC) system. To meet the Power Request of the SoC for different operation functions, fast up/down-tracking is implemented to achieve the F-DVS function. Recycling energy is also derived to minimize Power dissipation during the down-tracking period. In addition, the peak current control and valley current control methods are utilized in the buck and boost operations, respectively, to minimize the effect of switching noise in high switching operation for compact solution. Moreover, the self-tuning pulse skipping mechanism extends the effective duty cycle to achieve voltage regulation and improves efficiency when the input voltage is close to that of the output. Through F-DVS, the tracking speed from 3 to 2 V and vice versa are 15 and 20 μs, respectively, with a high switching frequency of 5 MHz.

Shaochang Huang - One of the best experts on this subject based on the ideXlab platform.

  • Power tracking embedded buck boost converter with fast dynamic voltage scaling for the soc system
    IEEE Transactions on Power Electronics, 2012
    Co-Authors: Shaochang Huang, Shihwei Wang, Weichan Wu, Pingching Huang, Hsinhsin Ho, Ke-horng Chen
    Abstract:

    A Power-tracking embedded buck-boost converter with a fast dynamic voltage scaling (F-DVS) function is proposed to Power the system-on-a-chip (SoC) system. To meet the Power Request of the SoC for different operation functions, fast up/down-tracking is implemented to achieve the F-DVS function. Recycling energy is also derived to minimize Power dissipation during the down-tracking period. In addition, the peak current control and valley current control methods are utilized in the buck and boost operations, respectively, to minimize the effect of switching noise in high switching operation for compact solution. Moreover, the self-tuning pulse skipping mechanism extends the effective duty cycle to achieve voltage regulation and improves efficiency when the input voltage is close to that of the output. Through F-DVS, the tracking speed from 3 to 2 V and vice versa are 15 and 20 μs, respectively, with a high switching frequency of 5 MHz.

  • Power-Tracking Embedded Buck–Boost Converter With Fast Dynamic Voltage Scaling for the SoC System
    IEEE Transactions on Power Electronics, 2012
    Co-Authors: Shaochang Huang, Shihwei Wang, Weichan Wu, Pingching Huang, Hsinhsin Ho, Ke-horng Chen
    Abstract:

    A Power-tracking embedded buck-boost converter with a fast dynamic voltage scaling (F-DVS) function is proposed to Power the system-on-a-chip (SoC) system. To meet the Power Request of the SoC for different operation functions, fast up/down-tracking is implemented to achieve the F-DVS function. Recycling energy is also derived to minimize Power dissipation during the down-tracking period. In addition, the peak current control and valley current control methods are utilized in the buck and boost operations, respectively, to minimize the effect of switching noise in high switching operation for compact solution. Moreover, the self-tuning pulse skipping mechanism extends the effective duty cycle to achieve voltage regulation and improves efficiency when the input voltage is close to that of the output. Through F-DVS, the tracking speed from 3 to 2 V and vice versa are 15 and 20 μs, respectively, with a high switching frequency of 5 MHz.

Yi-ping Su - One of the best experts on this subject based on the ideXlab platform.

  • Time-Shift Current Balance Technique in Four-Phase Voltage Regulator Module with 90% Efficiency for Cloud Computing
    IEEE Transactions on Power Electronics, 2015
    Co-Authors: Yi-ping Su, Yu-ping Huang, Wei-chung Chen, Chun-yen Chen, Chia-lung Ni, Ke-horng Chen
    Abstract:

    Four Power stages for voltage regulator module (VRM) are adopted to provide high current driving capability and low output ripple in cloud computing. Thus, the time-shift current balance (TSCB) technique is proposed to achieve high performance Power supply for servers. In addition, the Power Request, which includes the number of active phases and voltage identification, is acknowledged by servers for high driving capability during high throughput and high efficiency during standby mode. Furthermore, to equally distribute the current in each phase, the proposed TSCB technique in either voltage-mode or peak current-mode control improves the current balance performance and solves the stability problem. In the scale-down clouding computing prototype, the efficiency can be kept higher than 90% over a wide load current range of 2 A. In addition, the performance and operating frequency of the servers in stable operation are not limited by the VRM with the TSCB technique.

  • 94% Performance improvement by time-shift control (TSC) technique in cloud computing voltage regulator module (VRM)
    2013 IEEE International Symposium on Circuits and Systems (ISCAS), 2013
    Co-Authors: Che-hao Meng, Yi-ping Su, Yu-ping Huang, Ke-horng Chen
    Abstract:

    The time-shift control (TSC) technique for voltage regulator module (VRM) is proposed to achieve high performance Power supply for servers in cloud computing. Four Power stages are adopted to provide high current driving capability and low output ripple. Besides, the Power Request, which includes the number of active phases and voltage identification (VID), is acknowledged by servers for high driving capability during high throughput and high efficiency during standby mode. Furthermore, to equally distribute the current in each phase, the proposed TSC technique improves the current balance performance and solves the stability problem. In the scale-down clouding computing prototype, the efficiency can be kept higher than 90% over a wide load current range of 2 A. Besides, the performance and operating frequency of the servers in stable operation are not limited by the VRM with the TSC.

  • ISCAS - 94% Performance improvement by time-shift control (TSC) technique in cloud computing voltage regulator module (VRM)
    2013 IEEE International Symposium on Circuits and Systems (ISCAS2013), 2013
    Co-Authors: Che-hao Meng, Yi-ping Su, Yu-ping Huang, Ke-horng Chen
    Abstract:

    The time-shift control (TSC) technique for voltage regulator module (VRM) is proposed to achieve high performance Power supply for servers in cloud computing. Four Power stages are adopted to provide high current driving capability and low output ripple. Besides, the Power Request, which includes the number of active phases and voltage identification (VID), is acknowledged by servers for high driving capability during high throughput and high efficiency during standby mode. Furthermore, to equally distribute the current in each phase, the proposed TSC technique improves the current balance performance and solves the stability problem. In the scale-down clouding computing prototype, the efficiency can be kept higher than 90% over a wide load current range of 2 A. Besides, the performance and operating frequency of the servers in stable operation are not limited by the VRM with the TSC.

Yu-ping Huang - One of the best experts on this subject based on the ideXlab platform.

  • Time-Shift Current Balance Technique in Four-Phase Voltage Regulator Module with 90% Efficiency for Cloud Computing
    IEEE Transactions on Power Electronics, 2015
    Co-Authors: Yi-ping Su, Yu-ping Huang, Wei-chung Chen, Chun-yen Chen, Chia-lung Ni, Ke-horng Chen
    Abstract:

    Four Power stages for voltage regulator module (VRM) are adopted to provide high current driving capability and low output ripple in cloud computing. Thus, the time-shift current balance (TSCB) technique is proposed to achieve high performance Power supply for servers. In addition, the Power Request, which includes the number of active phases and voltage identification, is acknowledged by servers for high driving capability during high throughput and high efficiency during standby mode. Furthermore, to equally distribute the current in each phase, the proposed TSCB technique in either voltage-mode or peak current-mode control improves the current balance performance and solves the stability problem. In the scale-down clouding computing prototype, the efficiency can be kept higher than 90% over a wide load current range of 2 A. In addition, the performance and operating frequency of the servers in stable operation are not limited by the VRM with the TSCB technique.

  • 94% Performance improvement by time-shift control (TSC) technique in cloud computing voltage regulator module (VRM)
    2013 IEEE International Symposium on Circuits and Systems (ISCAS), 2013
    Co-Authors: Che-hao Meng, Yi-ping Su, Yu-ping Huang, Ke-horng Chen
    Abstract:

    The time-shift control (TSC) technique for voltage regulator module (VRM) is proposed to achieve high performance Power supply for servers in cloud computing. Four Power stages are adopted to provide high current driving capability and low output ripple. Besides, the Power Request, which includes the number of active phases and voltage identification (VID), is acknowledged by servers for high driving capability during high throughput and high efficiency during standby mode. Furthermore, to equally distribute the current in each phase, the proposed TSC technique improves the current balance performance and solves the stability problem. In the scale-down clouding computing prototype, the efficiency can be kept higher than 90% over a wide load current range of 2 A. Besides, the performance and operating frequency of the servers in stable operation are not limited by the VRM with the TSC.

  • ISCAS - 94% Performance improvement by time-shift control (TSC) technique in cloud computing voltage regulator module (VRM)
    2013 IEEE International Symposium on Circuits and Systems (ISCAS2013), 2013
    Co-Authors: Che-hao Meng, Yi-ping Su, Yu-ping Huang, Ke-horng Chen
    Abstract:

    The time-shift control (TSC) technique for voltage regulator module (VRM) is proposed to achieve high performance Power supply for servers in cloud computing. Four Power stages are adopted to provide high current driving capability and low output ripple. Besides, the Power Request, which includes the number of active phases and voltage identification (VID), is acknowledged by servers for high driving capability during high throughput and high efficiency during standby mode. Furthermore, to equally distribute the current in each phase, the proposed TSC technique improves the current balance performance and solves the stability problem. In the scale-down clouding computing prototype, the efficiency can be kept higher than 90% over a wide load current range of 2 A. Besides, the performance and operating frequency of the servers in stable operation are not limited by the VRM with the TSC.

Weichan Wu - One of the best experts on this subject based on the ideXlab platform.

  • Power tracking embedded buck boost converter with fast dynamic voltage scaling for the soc system
    IEEE Transactions on Power Electronics, 2012
    Co-Authors: Shaochang Huang, Shihwei Wang, Weichan Wu, Pingching Huang, Hsinhsin Ho, Ke-horng Chen
    Abstract:

    A Power-tracking embedded buck-boost converter with a fast dynamic voltage scaling (F-DVS) function is proposed to Power the system-on-a-chip (SoC) system. To meet the Power Request of the SoC for different operation functions, fast up/down-tracking is implemented to achieve the F-DVS function. Recycling energy is also derived to minimize Power dissipation during the down-tracking period. In addition, the peak current control and valley current control methods are utilized in the buck and boost operations, respectively, to minimize the effect of switching noise in high switching operation for compact solution. Moreover, the self-tuning pulse skipping mechanism extends the effective duty cycle to achieve voltage regulation and improves efficiency when the input voltage is close to that of the output. Through F-DVS, the tracking speed from 3 to 2 V and vice versa are 15 and 20 μs, respectively, with a high switching frequency of 5 MHz.

  • Power-Tracking Embedded Buck–Boost Converter With Fast Dynamic Voltage Scaling for the SoC System
    IEEE Transactions on Power Electronics, 2012
    Co-Authors: Shaochang Huang, Shihwei Wang, Weichan Wu, Pingching Huang, Hsinhsin Ho, Ke-horng Chen
    Abstract:

    A Power-tracking embedded buck-boost converter with a fast dynamic voltage scaling (F-DVS) function is proposed to Power the system-on-a-chip (SoC) system. To meet the Power Request of the SoC for different operation functions, fast up/down-tracking is implemented to achieve the F-DVS function. Recycling energy is also derived to minimize Power dissipation during the down-tracking period. In addition, the peak current control and valley current control methods are utilized in the buck and boost operations, respectively, to minimize the effect of switching noise in high switching operation for compact solution. Moreover, the self-tuning pulse skipping mechanism extends the effective duty cycle to achieve voltage regulation and improves efficiency when the input voltage is close to that of the output. Through F-DVS, the tracking speed from 3 to 2 V and vice versa are 15 and 20 μs, respectively, with a high switching frequency of 5 MHz.