The Experts below are selected from a list of 1218 Experts worldwide ranked by ideXlab platform

Zhong Liu - One of the best experts on this subject based on the ideXlab platform.

  • Design and Implementation of a Low-Power Low-Cost Digital Current-Sink Electronic Load ‡
    Energies, 2019
    Co-Authors: Wei Jiang, Jieyun Wang, Qianlong Wang, Seiji Hashimoto, Zhong Liu
    Abstract:

    Electronic load (e-load) is essential equipment for power converter performance test, where a designated load profile is executed. Electronic load is usually implemented with the analog controller for fast tracking of the load profile reference. In this paper, a low-power low-cost electronic load is proposed. MOSFETs (metal-oxide-semiconductor field-effect transistors) are used as the power consumption devices, which are regulated to the active region as controlled Current-Sink. In order to achieve fast transient response using the low-cost digital signal controller (DSC) PWM peripherals, the interleaving PWM method is proposed to achieve active Current ripple mitigation. To obtain the system open-loop gain for Current-Sink operation, an offline digital system identification method, followed by model reduction, is proposed by applying Pseudo-Random Binary Sequence (PRBS) excitation. Pole-zero cancelation method is used in the control system design and later implemented in a DSC. The prototype is built and tested, in which meaningful testing scenarios under Constant Current-Sink mode, pulse Current Sink mode, and double line-frequency Current mode are verified. The experimental results indicate that the proposed e-load can Sink pre-programmed Current profile with well-attenuated ripple for static and dynamic load testing, and is applicable to fully digitalized power testing equipment.

Wei Jiang - One of the best experts on this subject based on the ideXlab platform.

  • Design and Implementation of a Low-Power Low-Cost Digital Current-Sink Electronic Load ‡
    Energies, 2019
    Co-Authors: Wei Jiang, Jieyun Wang, Qianlong Wang, Seiji Hashimoto, Zhong Liu
    Abstract:

    Electronic load (e-load) is essential equipment for power converter performance test, where a designated load profile is executed. Electronic load is usually implemented with the analog controller for fast tracking of the load profile reference. In this paper, a low-power low-cost electronic load is proposed. MOSFETs (metal-oxide-semiconductor field-effect transistors) are used as the power consumption devices, which are regulated to the active region as controlled Current-Sink. In order to achieve fast transient response using the low-cost digital signal controller (DSC) PWM peripherals, the interleaving PWM method is proposed to achieve active Current ripple mitigation. To obtain the system open-loop gain for Current-Sink operation, an offline digital system identification method, followed by model reduction, is proposed by applying Pseudo-Random Binary Sequence (PRBS) excitation. Pole-zero cancelation method is used in the control system design and later implemented in a DSC. The prototype is built and tested, in which meaningful testing scenarios under Constant Current-Sink mode, pulse Current Sink mode, and double line-frequency Current mode are verified. The experimental results indicate that the proposed e-load can Sink pre-programmed Current profile with well-attenuated ripple for static and dynamic load testing, and is applicable to fully digitalized power testing equipment.

Jieyun Wang - One of the best experts on this subject based on the ideXlab platform.

  • Design and Implementation of a Low-Power Low-Cost Digital Current-Sink Electronic Load ‡
    Energies, 2019
    Co-Authors: Wei Jiang, Jieyun Wang, Qianlong Wang, Seiji Hashimoto, Zhong Liu
    Abstract:

    Electronic load (e-load) is essential equipment for power converter performance test, where a designated load profile is executed. Electronic load is usually implemented with the analog controller for fast tracking of the load profile reference. In this paper, a low-power low-cost electronic load is proposed. MOSFETs (metal-oxide-semiconductor field-effect transistors) are used as the power consumption devices, which are regulated to the active region as controlled Current-Sink. In order to achieve fast transient response using the low-cost digital signal controller (DSC) PWM peripherals, the interleaving PWM method is proposed to achieve active Current ripple mitigation. To obtain the system open-loop gain for Current-Sink operation, an offline digital system identification method, followed by model reduction, is proposed by applying Pseudo-Random Binary Sequence (PRBS) excitation. Pole-zero cancelation method is used in the control system design and later implemented in a DSC. The prototype is built and tested, in which meaningful testing scenarios under Constant Current-Sink mode, pulse Current Sink mode, and double line-frequency Current mode are verified. The experimental results indicate that the proposed e-load can Sink pre-programmed Current profile with well-attenuated ripple for static and dynamic load testing, and is applicable to fully digitalized power testing equipment.

Seiji Hashimoto - One of the best experts on this subject based on the ideXlab platform.

  • Design and Implementation of a Low-Power Low-Cost Digital Current-Sink Electronic Load ‡
    Energies, 2019
    Co-Authors: Wei Jiang, Jieyun Wang, Qianlong Wang, Seiji Hashimoto, Zhong Liu
    Abstract:

    Electronic load (e-load) is essential equipment for power converter performance test, where a designated load profile is executed. Electronic load is usually implemented with the analog controller for fast tracking of the load profile reference. In this paper, a low-power low-cost electronic load is proposed. MOSFETs (metal-oxide-semiconductor field-effect transistors) are used as the power consumption devices, which are regulated to the active region as controlled Current-Sink. In order to achieve fast transient response using the low-cost digital signal controller (DSC) PWM peripherals, the interleaving PWM method is proposed to achieve active Current ripple mitigation. To obtain the system open-loop gain for Current-Sink operation, an offline digital system identification method, followed by model reduction, is proposed by applying Pseudo-Random Binary Sequence (PRBS) excitation. Pole-zero cancelation method is used in the control system design and later implemented in a DSC. The prototype is built and tested, in which meaningful testing scenarios under Constant Current-Sink mode, pulse Current Sink mode, and double line-frequency Current mode are verified. The experimental results indicate that the proposed e-load can Sink pre-programmed Current profile with well-attenuated ripple for static and dynamic load testing, and is applicable to fully digitalized power testing equipment.

Qianlong Wang - One of the best experts on this subject based on the ideXlab platform.

  • Design and Implementation of a Low-Power Low-Cost Digital Current-Sink Electronic Load ‡
    Energies, 2019
    Co-Authors: Wei Jiang, Jieyun Wang, Qianlong Wang, Seiji Hashimoto, Zhong Liu
    Abstract:

    Electronic load (e-load) is essential equipment for power converter performance test, where a designated load profile is executed. Electronic load is usually implemented with the analog controller for fast tracking of the load profile reference. In this paper, a low-power low-cost electronic load is proposed. MOSFETs (metal-oxide-semiconductor field-effect transistors) are used as the power consumption devices, which are regulated to the active region as controlled Current-Sink. In order to achieve fast transient response using the low-cost digital signal controller (DSC) PWM peripherals, the interleaving PWM method is proposed to achieve active Current ripple mitigation. To obtain the system open-loop gain for Current-Sink operation, an offline digital system identification method, followed by model reduction, is proposed by applying Pseudo-Random Binary Sequence (PRBS) excitation. Pole-zero cancelation method is used in the control system design and later implemented in a DSC. The prototype is built and tested, in which meaningful testing scenarios under Constant Current-Sink mode, pulse Current Sink mode, and double line-frequency Current mode are verified. The experimental results indicate that the proposed e-load can Sink pre-programmed Current profile with well-attenuated ripple for static and dynamic load testing, and is applicable to fully digitalized power testing equipment.