The Experts below are selected from a list of 15 Experts worldwide ranked by ideXlab platform

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

  • An Improved Hiccup Mode Short-Circuit Protection Technique With Effective Overshoot Suppression for DC–DC Converters
    IEEE Transactions on Power Electronics, 2013
    Co-Authors: Yanming Li, Hongyi Wang
    Abstract:

    Based on the analysis of the overshoot during the process of short-circuit recovery, an improved hiccup mode protection technique with effective overshoot suppression is presented in this paper. The hiccup mode is activated by the error amplifier (EA) output rather than the feedback voltage. And when the voltage exceeds the high-clamping voltage, the soft-start voltage will be quickly discharged to zero and a new soft-start cycle will attempt to restart the converter. The proposed control method makes the EA output voltage rapidly decline once short-circuit recovery happens, which is very effective for the suppression of overshoot. In addition, the circuit has combined with a Foldback Current Limiting method to further improve the effect of short-circuit protection and overshoot suppression. The proposed technique has been successfully applied to a peak Current mode buck converter with Nuvoton 0.6-μm 5 V/18 V Low-Vgs CDMOS process. The experimental results show that even in extreme cases, this method can effectively suppress the overshoot and the overshoot is almost zero.

Yanming Li - One of the best experts on this subject based on the ideXlab platform.

  • An Improved Hiccup Mode Short-Circuit Protection Technique With Effective Overshoot Suppression for DC–DC Converters
    IEEE Transactions on Power Electronics, 2013
    Co-Authors: Yanming Li, Hongyi Wang
    Abstract:

    Based on the analysis of the overshoot during the process of short-circuit recovery, an improved hiccup mode protection technique with effective overshoot suppression is presented in this paper. The hiccup mode is activated by the error amplifier (EA) output rather than the feedback voltage. And when the voltage exceeds the high-clamping voltage, the soft-start voltage will be quickly discharged to zero and a new soft-start cycle will attempt to restart the converter. The proposed control method makes the EA output voltage rapidly decline once short-circuit recovery happens, which is very effective for the suppression of overshoot. In addition, the circuit has combined with a Foldback Current Limiting method to further improve the effect of short-circuit protection and overshoot suppression. The proposed technique has been successfully applied to a peak Current mode buck converter with Nuvoton 0.6-μm 5 V/18 V Low-Vgs CDMOS process. The experimental results show that even in extreme cases, this method can effectively suppress the overshoot and the overshoot is almost zero.

马克斯 W 穆特斯鲍格 - One of the best experts on this subject based on the ideXlab platform.

  • dual voltage voltage regulator with Foldback Current Limiting
    1994
    Co-Authors: 马克斯 W 穆特斯鲍格
    Abstract:

    The voltage regulator and the DC output voltage can be converted in a lower adjusted between a higher regulated DC output voltage. When the value exceeds the Current threshold, the Current Limiting overload protection according to the load caused by the Current start. Limit threshold voltage of the tap-determining the relationship, the relationship between the voltage change appearing on the series with the load Current detecting resistor is connected by a respective voltage divider. For lower and higher regulated DC output voltage of the Current limit threshold is adjusted to be approximately equal. Nonlinear voltage controllable adjusting device is completed, the divider means coupled to one, and starts at a higher output voltage mode.

G. Pessina - One of the best experts on this subject based on the ideXlab platform.

  • Low-noise, low drift, high precision linear bipolar (±10 V) voltage supply/reference for cryogenic front-end apparatus
    Review of Scientific Instruments, 1999
    Co-Authors: G. Pessina
    Abstract:

    A very simple linear bipolar (±10 V) voltage supply/reference (VS/R) featuring very low noise has been implemented. The noise is about 1 μVpp in a 0.1–10 Hz bandwidth, becoming, for the −10 V supply only, 1.3 μVpp at 1.5 A. The VS/R is based on commercial devices and has been designed to face the stringent requirement of very low drift systems. It features very good line regulation, less than 10 mV over 10 V at 1.5 A supply Current, and very low drift, between 3 and 8 ppm/°C; it also shows large power supply rejection ratio (PSRR), >120 dB. The VS/R presented includes also safety circuits, to protect itself and the electronic equipment to be supplied in an actual experimental condition. It is protected against inversion of polarity and against under and over voltage at its inputs, and has a Foldback Current Limiting circuit which shuts down the whole system if the Current absorption lasts for some time. These protecting circuits acts on both outputs (±10 V), to maintain always the symmetry. From an analys...

Cheng Xiaojie - One of the best experts on this subject based on the ideXlab platform.